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A Practical Manual, for, , Solid Modeling and Additive, Manufacturing, (22053), Semester– (V), (ME/PS)

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Maharashtra State, Board of Technical Education, Certificate, This is to certify that Mr. / Ms ……………………………………., Roll No……………………….of Fifth Semester of Diploma in, ………………………………………………………….of Institute, …………………………………………………………………….., (Code………………..) has completed the term work satisfactorily, in course Solid Modeling and Additive Manufacturing(22053), for the academic year 20…….to 20…..... as prescribed in the, curriculum., Place ………………., , Enrollment No……………………, , Date:…....................., , Exam Seat No. ………………......, , Course Teacher, , Head of the Department, Seal of the, Institute, , Principal

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Solid Modelling and Additive Manufacturing (22053), , Preface, The primary focus of any engineering laboratory/ field work in the technical education system, is to develop the much needed industry relevant competencies and skills. With this in view, MSBTE, embarked on this innovative ‘I’ Scheme curricula for engineering diploma programmes with outcomebase education as the focus and accordingly, relatively large amount of time is allotted for the practical, work. This displays the great importance of laboratory work making each teacher; instructor and, student to realize that every minute of the laboratory time need to be effectively utilized to develop, these outcomes, rather than doing other mundane activities. Therefore, for the successful, implementation of this outcome-based curriculum, every practical has been designed to serve as a, ‘vehicle’ to develop this industry identified competency in every student. The practical skills are, difficult to develop through ‘chalk and duster’ activity in the classroom situation. Accordingly, the ‘I’, scheme laboratory manual development team designed the practical to focus on the outcomes, rather, than the traditional age old practice of conducting practical to ‘verify the theory’ (which may become a, byproduct along the way)., This laboratory manual is designed to help all stakeholders, especially the students, teachers, and instructors to develop in the student the pre-determined outcomes. It is expected from each student, that at least a day in advance, they have to thoroughly read through the concerned practical procedure, that they will do the next day and understand the minimum theoretical background associated with the, practical. Every practical in this manual begins by identifying the competency, industry relevant skills,, course outcomes and practical outcomes which serve as a key focal point for doing the practical. The, students will then become aware about the skills they will achieve through procedure shown there and, necessary precautions to be taken, which will help them to apply in solving real-world problems in, their professional life., This manual also provides guidelines to teachers and instructors to effectively facilitate, student-centered lab activities through each practical exercise by arranging and managing necessary, resources in order that the students follow the procedures and precautions systematically ensuring the, achievement of outcomes in the students., Mechanical, Plastic, Automobile and allied Industries need to build computer based models of, desired product to perform different analyses before sending them for manufacturing so as to avoid, wastage of resources. These models are being created using computer aided design software through, ‘solid modeling module’ of the software. The same solid model can be send to rapid prototype, machines and 3D printers for direct additive manufacturing also. This course will enable the students, to inculcate solid modeling and additive manufacturing concepts and methodology to solve, engineering problems, Although all care has been taken to check for mistakes in this laboratory manual, yet it is, impossible to claim perfection especially as this is the first edition. Any such errors and suggestions, for improvement can be brought to our notice and are highly welcome., , i

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Solid Modelling and Additive Manufacturing (22053), , Programme Outcomes (POs) to be achieved through Practical of this, Course:, PO 1. Basic knowledge: Apply knowledge of basic mathematics, sciences and basic, engineering to solve the broad-based mechanical engineering problems., PO 2. Discipline knowledge: Apply mechanical engineering knowledge to solve broadbasedmechanicalengineering related problems., PO 3. Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-basedmechanicalengineering problems., PO 4. Engineering tools: Apply relevant, , mechanical technologies and tools with an, , understanding of the limitations, PO 5. The engineer and society: Assess societal, health, safety, legal and cultural issues and, the consequent responsibilities relevant to practice in field of mechanical engineering., PO 6. Environment and sustainability: Apply mechanical engineering solutions also for, sustainable development practices in societal and environmental contexts., PO 7. Ethics: Apply ethical principles for commitment to professional ethics, responsibilities, and norms of the practice also in the field of mechanical engineering., PO 8. Individual and team work: Function effectively as a leader and team member in, diverse/ multidisciplinary teams., PO 9. Communication: Communicate effectively in oral and written form., PO 10. Life-long learning: Engage in independent and life-long learning activities in the, context of technological changes also in the mechanical engineering and allied, industry., Program Specific Outcomes (PSOs), PSO 1: Modern Software Usage: Use latest mechanical related software for simple design,, drafting, manufacturing, maintenance and documentation of mechanical components, and processes., PSO 2: Maintenance and selection of machines, equipment, instruments: Maintain and, select appropriate machine, equipment and instrument in field of Mechanical, Engineering., PSO 3: Manage Mechanical Process: Manage the mechanical process by selection and, scheduling right type of machinery, equipment, substrates, quality control techniques,, operational parameters and software for a particular mechanical process or job for, economy of operations., , ii

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Solid Modelling and Additive Manufacturing (22053), , List of Industry Relevant Skills, The following industry relevant skills of the competency Use Solid Modeling and Additive, Manufacturing are expected to be developed in you by undertaking the practical of this, laboratory manual., a. Prepare 2D Drawings using sketcher workbench of any parametric CAD software., b., , Generate 3D Solid models from 2D sketches using Part workbench of any parametric, CAD software., , c., , Prepare assemblies of part models using Assembly workbench of any parametric CAD, software., , d., , Generate orthographic views of 3D solid models/assemblies using drafting workbench, of any parametric CAD software., , e., , Generate production drawings for given part models/assemblies., f., , Print components using 3D Printer/Rapid prototyping machine., , iii

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Solid Modelling and Additive Manufacturing (22053), , Practical- Course Outcome matrix, Course Outcomes (COs), a. Prepare 2D Drawings using sketcher workbench of any parametric CAD software., b. Generate 3D Solid models from 2D sketches using Part workbench of any parametric, CAD software., c. Prepare assemblies of part models using Assembly workbench of any parametric CAD, software., d. Generate orthographic views of 3D solid models/assemblies using drafting workbench, of any parametric CAD software., e. Generate production drawings for given part models/assemblies., f. Print components using 3D Printer/Rapid prototyping machine, CO CO CO CO CO CO, Sr. No., Practical Outcome, a., b., c., d., e., f., Prepare drawing template consisting of, √, name plate boundary lines and projection, 1., symbol., Draw and print two simple 2D geometries, using sketcher commands, , √, , -, , -, , -, , -, , -, , 3., , Draw and print two complex 2D, geometries using sketcher commands, , √, , -, , -, , -, , -, , -, , 4., , Draw and print the given two simple 3-D, drawings using 3D modeling commands, , √, , √, , -, , -, , -, , -, , 5., , Develop solid models of individual, components of Bench vice / Drill Jig /, Screw Jack / Tool Post / anyone assembly, consisting of at least five parts. (Problem 1), , √, , √, , √, , -, , -, , -, , 6., , Develop solid models of individual, components of Bench vice / Drill Jig /, Screw Jack / Tool Post / anyone assembly, consisting of at least five parts. (Problem 1, continued), , √, , √, , √, , -, , -, , -, , Develop solid models of individual, components of Bench vice / Drill Jig /, Screw Jack / Tool Post / anyone assembly, consisting of at least five parts. (Problem 1, continued), , √, , √, , √, , √, , -, , -, , Develop solid models of individual, components of Bench vice / Drill Jig /, Screw Jack / Tool Post / anyone assembly, consisting of at least five parts. (Problem 1, continued), , √, , √, , √, , √, , -, , -, , 2., , 7., , 8., , iv

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Solid Modelling and Additive Manufacturing (22053), , 9., , Assemble and print the orthographic views, of the assembly developed in PrO 5 to 8, with bill of materials. ( Problem 2), , √, , √, , √, , √, , √, , 10., , Assemble and print the orthographic views, of the assembly developed in PrO 5 to 8, with bill of materials. ( Problem 2, continued), , √, , √, , √, , √, , √, , 11., , Assemble and print the orthographic views, of the assembly developed in PrO 5 to 8, with bill of materials. ( Problem 2, continued), , √, , √, , √, , √, , √, , 12., , Draw and print the production drawing of, all individual components part models of, assembly developed in PrO 5 to 8., (Problem 3), , √, , √, , √, , √, , √, , √, , 13., , Draw and print the production drawing of, all individual components part models of, assembly developed in PrO 5 to 8., (Problem 3 continued), , √, , √, , √, , √, , √, , √, , 14., , Draw and print the production drawing of, all individual components part models of, assembly developed in PrO 5 to 8., (Problem 3 continued), , √, , √, , √, , √, , 15., , Print one simple component using 3D, printer / Rapid prototyping machine., , -, , -, , -, , -, , -, , √, , 16., , Print one complex component using 3D, printer / Rapid prototyping machine., (Problem 1), , -, , -, , -, , -, , -, , √, , √, , -, , -, , √, , v

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Solid Modelling and Additive Manufacturing (22053), , Guidelines to Teachers, 1. Teacher need to ensure that a dated log book for the whole semester, apart from the, laboratory manual is maintained by every student which s/he has to submit for, assessment to the teacher in the next practical session., 2. There will be two sheets of blank pages after every practical for the student to report, other matters(if any), which is not mentioned in the printed practicals., 3. For difficult practicals if required, teacher could provide the demonstration of the, practical emphasizing of the skills which the student should achieve., 4. Teachers should give opportunity to students for hands-on after the demonstration., 5. Assess the skill achievement of the students and COs of each unit., 6. One or two questions ought to be added in each practical for different batches. For this, teachers can maintain various practical related question banks for each course., 7. If some repetitive information like data sheet, use of software tools etc. has to be provided, for effective attainment of practical outcomes, they can be incorporated in Appendix., 8. For effective implementation and attainment of practical outcomes, teacher ought to, ensure that in the beginning itself of each practical, students must read through the, complete write-up of that practical sheet., 9. During practical, ensure that each student gets chance and takes active part in taking, observations/ readings and performing practical., 10. Teacher ought to assess the performance of students continuously according to the, MSBTE guidelines, , Instructions for Students, 1. For incidental writing on the day of each practical session every student should maintain, a dated log book for the whole semester, apart from this laboratory manual which s/he, has to submit for assessment to the teacher in the next practical session., 2. For effective implementation and attainment of practical outcomes, in the beginning, itself of each practical, students need to read through the complete write-up including, the practical related questions and assessment scheme of that practical sheet., 3. Student ought to refer the data books, IS codes, Safety norms, Technical Manuals, etc., 4. Student should not hesitate to ask any difficulties they face during the conduct of, practical., , vi

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Solid Modelling and Additive Manufacturing (22053), , Content Page, List of Practical and Progressive Assessment Sheet, Sr., No, , Practical Outcome, , Page, No., , Prepare drawing template consisting, 1. of name plate boundary lines and, projection symbol., Draw and print two simple 2D, 2. geometries using sketcher commands, , 23, , Draw and print two complex 2D, 3. geometries using sketcher commands, , 40, , Draw and print the given two simple, 4. 3-D drawings using 3D modeling, commands, , 59, , Develop solid models of individual, components of Bench vice / Drill Jig, 5. / Screw Jack / Tool Post / anyone, assembly consisting of at least five, parts. (Problem 1), , 90, , Develop solid models of individual, components of Bench vice / Drill Jig, 6. / Screw Jack / Tool Post / anyone, assembly consisting of at least five, parts. (Problem 1 continued), , 98, , Develop solid models of individual, components of Bench vice / Drill Jig, 7. / Screw Jack / Tool Post / anyone, assembly consisting of at least five, parts. (Problem 1 continued), , 106, , Develop solid models of individual, components of Bench vice / Drill Jig, / Screw Jack / Tool Post / anyone, 8., assembly consisting of at least five, parts. (Problem 1 continued), , 119, , Assemble and print the orthographic, views of the assembly developed in, 9. PrO 5 to 8 with bill of materials., (Problem 2), , 147, , Date of, performance, , Date of, Assess Dated, submi, ment, sign. of, ssion marks(25) teacher, , Remarks, , (if any), , 1, , vii

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Solid Modelling and Additive Manufacturing (22053), , Assemble and print the orthographic, views of the assembly developed in, 10. PrO 5 to 8 with bill of materials., (Problem 2 continued), , 168, , Assemble and print the orthographic, views of the assembly developed in, 11. PrO 5 to 8 with bill of materials., (Problem 2 continued), , 190, , Draw and print the production, drawing of all individual components, 12. part models of assembly developed in, PrO 5 to 8. (Problem 3), , 203, , Draw and print the production, drawing of all individual components, 13. part models of assembly developed in, PrO 5 to 8. (Problem 3 continued), , 220, , Draw and print the production, drawing of all individual components, 14. part models of assembly developed in, PrO 5 to 8. (Problem 3 continued), , 226, , Print one simple component using 3D, 15. printer / Rapid prototyping machine., , 232, , Print one complex component using, 16. 3D printer / Rapid prototyping, machine. (Problem 1), , 249, , Total, Note: To be transferred to Proforma of CIAAN-2017., A suggestive list of PrOs is given in the above table. More such PrOs can be added to attain the COs and competency. A judicial mix, of minimum 12 or more practical need to be performed, out of which, the practicals marked as ‘*’ are compulsory, so that the, student reaches the ‘Precision Level’ of Dave’s ‘Psychomotor Domain Taxonomy’ as generally required by the industry., , viii

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Solid Modelling and Additive Manufacturing (22053), , Practical No.1: Prepare drawing template consisting of name plate, boundary lines and projection symbol., I., , Practical Significance, The main purpose of engineering drawing is to communicate to other engineers,, machinists etc. by placing various views on a drawing sheet of different sizes. In, additions to these standard views we also need to show border, title block, tables, and, various special notes. To show additional details, either we use standard template, formats available in software or we can modify these standard templates as per our, requirement or we can create our custom based new template format. In these, practical, we are going to create custom based new template format and extension of, format file is *.frm., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and allied, industry., , III, , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency ‘Draw Title Block, border, projection symbols for engineering drawing., , IV, , Relevant Course Outcome(s),  Create our custom based new template format as per our requirement., , V, , Practical Outcome,  Create custom based new template as per our requirement and use it to all drawings, prepared in this subject., , VI, , Relative Affective Domain,  Working in team work.,  Practice good housekeeping.,  Demonstrate working as a leader/a team member.,  Follow ethical Practices., , VII, , Minimum Theoretical Background,  Basic knowledge of computer handling.,  Basic knowledge of template content., 1

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Solid Modelling and Additive Manufacturing (22053), ,  Knowledge of various sheet sizes.,  Knowledge of solid modeling and format environment commands., VIII, , Experimental setup, NIL., , IX, , Resources Required, S., No., , Name of Resource, , 1, , Hardware: Personal, computer., , 2, , Operating system, , 3, , Software, , 4, , Plotter., , Suggested Broad Specification, (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter., Display-wide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., Any parametric solid modeling, software., Plotter A2 OR A3Size., , Quantity, As per, batch size, As per, batch size, As per, batch size, 1, , X, , Precautions to be Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XI, , Procedure, The first things you need to do if you want own customized format is to decide what it, is going to look like. The best way to do that is to draw one out roughly on the relevant, sized sheet of paper. As an example we are going to create an A4 sized landscape, custom based template format (Here Solid Modeling CAD software is used).This is the, guide to help you. You now have to determine how each element will be made., Considering following specifications of sample template for exercise as shown in, Figure., , 2

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Solid Modelling and Additive Manufacturing (22053), , Problem Definition:Paper Size- A4 (297 X210 mm)Name Plate Size -150 X50 mm., Border-277X190mm, , Sr., No., , 1, 2, 3, , 4, , 5, , 6, 7, , Particular, , Border(Inside offset, by 10 mm, Table Lines, NAME,ROLL NO,SEM.&, SEC.,SUB, DATE,GRADE,SHEET, NO.CECKED BY, SCREW JACK, ASSEMBLY, , Color, , Black, Brown, Red, , Height, , Thick, , 1, , --, , --, , 0.5, , --, , --, , --, , 4, , 1, , --, , 4, , 1, , --, , 4, , 1, , 0.5, , --, , --, , --, , 4, , 1, , Green, , INSTITUTE NAME, DEPARTMENT NAME, , Light, Blue, , First Angle Symbol, Øԁ = 9, Note-ALL, , Black, , DIMENSIONS ARE IN, MM, , Width, , Dark, Blue, , Font/Alignment in, cell, , --CG Times., Horizontally left., Vertically middle, CG Times., Horizontally center., Vertically middle, CG Times., Horizontally center., Vertically middle, Line font-SOLID, FONT,CTRL FONT, , CG Times, , 3

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Solid Modelling and Additive Manufacturing (22053), , Following steps are required to create an A4 sized landscape custom based template, format. (Here you can use any CAD software), A. Setting the Environment:, icon on the desktop. The software will be launched, and the first, 1. Click on, window will be displayed as shown in Figure., , B. Set working directory:, To store all the created work content (files) in the current session in a specified folder;, initially we have to set the directory. You can set any existing folder as the working, directory. To do this, click File>Manage Session>SelectWorking Directory, select, the particular folder., , After setting specified directory the screen will appear as shown in Figure., , 4

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Solid Modelling and Additive Manufacturing (22053), , Click OK as shown in Figure., C. To invoke format environment:, 1. Select New from the File toolbar. The New dialog box is display., 2. Select the format radio button., 3. Type name as PRACTICAL1_TEMPLETE_FORMAT., 4. Choose the OK button., , When you invoke the Format mode, the new dialog box will display shown in, Figure., , 5

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Solid Modelling and Additive Manufacturing (22053), , 1. Select the Empty radio button. Select landscape orientation., 2. Specify A4 (297X210 mm) size sheet by drop down menu., 3. Click on OK.The A4 size sheet will appear as shown in Figure., , D. To draw border 10 mm inside the sheet:, 1. Select Sketch from ribbon menu to draw border to the sheet., Offset Edge command from sketching tool bar., , 2., , Select, , 3., 4., , Select, Ent. Chain from menu manager., Select the A4 size sheet by pressing Ctrl button of key board., , 5., , Click OK, , from‘select’ dialog box., , 6

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Solid Modelling and Additive Manufacturing (22053), , 6., , Enter off set distance -10 and accept the value.Exit from commands., Figure show the A4 size sheet with 10 mm border inside the sheet., , E. Toinsert the table., 1. Choose Table from ribbon menu., 2. Select the table by specifying 3 columns and 5 rows as shown in, Figure., 3. Click curser inside the border of A4 size sheet., , The table will display on the drawing area as shown in Figure., , F. To convert the table to required height and width:, 1. Highlight the table by window selection method., 2. Click to, Height and width tool option .The new Height and, Width definition dialog box will appear on the screen as shown in figure., , 7

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Solid Modelling and Additive Manufacturing (22053), , In the same dialog box1. Uncheck the ‘Automatic height adjustment’ option., 2. Mention the height 10 and width 50 in the same dialog box option., 3. Click OK, Click the cursor in drawing area., The table appearance is similar to the one shown in Figure., , G. To merge the required cell:, 1. Highlight the cells, those you want to merge by pressing Ctrl button of key board., 2. Click on Merge Cells options from menu bar., 3. Click the cursor in drawing area., The table appearance is similar to the one shown in Figure., , Repeat the same procedure to merge remaining cell as per sample title block given to, you., H. To move entire table to lower right corner of the border :, 1., Click on Table from menu bar., 2., Highlight table by clicking on it., Pick up the table Grib and locate it at lower left corner of border., 3., The table will look like as shown in Figure., , 8

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Solid Modelling and Additive Manufacturing (22053), , I. To add the text as per the given sample title block:, 1. Highlight a cell by double clicking., 2. New ‘Note properties’ definition dialog box will open., , 3. Type the text ‘NAME-' in note properties window as shown., , 4. Select the Text Style tab from same window., 5. Mention Height 4, thickness 1, font CG TIMES, left, middle and red color for, proper alignment of letter. Click on Preview and OK tab., The same screen will look appear as shown in Figure., , 6. Repeat the same procedure for all letters., Finally you will get the TITLE BLOCK as shown in Figure., , 9

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Solid Modelling and Additive Manufacturing (22053), , J. To change table line width and color:, 1. Select Table>Select Line Style option button., 2. Keep Modify Lines as default as it is., , 3. Select table of name plate by just clicking., , 4. Select OK, 5. New Modify Line Styledefinition dialog box will appear on screen., , 6. Enter required width 0.5 and brown color and click on Apply button., The table line width will get changed and appear is similar to the one shown in, Figure., , 10

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Solid Modelling and Additive Manufacturing (22053), , K. To change line width and color of border lines:, 1. Select Sketcher> Line Style> Modify Lines., 2. Then select entire border lines by pressing Ctrl button of key board., 3. Accept your selection by clicking OK, , New Modify Line Style definition dialog box will appear on screen., , 4. Enter the width by 1 and black color. Click to Apply> Close>OK, The border line width will get changed and appear is similar to the one shown in, Figure., , 11

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Solid Modelling and Additive Manufacturing (22053), , L. To createFIRST ANGLE symbol in template:, 1. Select Annotate from menu bar., 2. Select Symbol Gallery from Symbol drops down list., , 3. Select, Define from Menu Manager., 4. Specify symbol name as FIRST_ANGLE and accept selection., , The next new screen will appear shown in Figure., , To draw first angle projection symbol. Use tool bar shown in previous Figure., 1. Select Sketcher>Line, , 2., 3., , Start to draw symbol. First you have to draw horizontal and vertical lines., Change line style by selecting line and click RMB. Select Line Style., , New Modify Line Styledefinition dialog box will appear on screen., , 12

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Solid Modelling and Additive Manufacturing (22053), , 4. Select CTRL FONT and Blackcolor. Click to Apply button., , Continue the same procedure whenever you want to change the line style., 5. Next insert, , Point at intersection of two center lines as shown in Figure., , 6. Draw two circles of diameter 9 and 4.5 by using Edit Diameter Value by right, clicking option and accept it by clicking as shown in Figure., , You have to draw remaining entities of symbol according to proportionate, mention in Figure. Finally First Angle symbol will look like as shown in Figure., , To change symbol width., 1. Select symbol by window method., 2. Right click and choose Line Style option., 3. Specify width by 0.5 as shown in Figure. Click Applybutton., 13

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Solid Modelling and Additive Manufacturing (22053), , 4., , The symbol line width will change as shown in Figure. Next click on Done, from the Menu manager., , New window Symbol Definition Attribute dialog boxwill display on the screen, as shown in Figure., 5. Tick the Free option and click on OK., , New Select Point definition dialog box will open., 6. Select a point using absolute co-ordinates option. Click on OK, , Again window Symbol Definition Attribute will display on the screen.Click, on OK., 14

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Solid Modelling and Additive Manufacturing (22053), , 7. Select Done option from Menu Manager., , Now you will be at main screen as shown in Figure., , 8., , Select Done option from Menu Manager., First Angle symbol is created in Custom Symbol., , M. To insert prepared first angle projection symbol in name plate:, 1. Select Annotate> Symbol>Custom Symbol from menu bar., , New Custom Drawing Symbol window will display on screen., , 15

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Solid Modelling and Additive Manufacturing (22053), , 2. Select FIRST_ANGLE as the symbol name from the list as shown in Figure., , 3. Now click on actual symbol and place it in drawing area by moving cursor as, shown in Figure. Click on OK., , 4., , Move the symbol at required position., , Finally sheet with symbol will look like as shown in Figure., , 16

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Solid Modelling and Additive Manufacturing (22053), , N. To add note without leader:, 1., , Click Annotate tab, select Note button, from Menu Manager., , Note and click Make Note options, , 1., , New Select Point window will appear on the screen., Choose Free point and locate it as per requirement., , 2., 3., , Write note as ALL DIMENSIONS ARE IN MM and accept it., Select Done from Menu Manager., , 4., , Right click on letters you written. Select Properties option., , Note Properties window will open., , 17

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Solid Modelling and Additive Manufacturing (22053), , 5. Specify font as CG Times, Height 4, Thickness 1, blue color. Select, Preview. Click OK button. Finally mentioned note will look like as shown, in Figure., O. To change sheet name Lines & Lettering by SCREW JACK ASSEMBLY:, 1. Double click to respective cell. Note Properties window will display., , 2., , Type SCREW JACK ASSEMBY in Text option., , 3., , Select Text Style tab, and enter the font-4, Thickness -1, horizontally center and, vertically middle alignment. Color –green., , 4., , Click Preview and OK., Finally the A4 size landscape custom based template format will ready as, shown in Figure., , 18

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Solid Modelling and Additive Manufacturing (22053), , P., , XII, , Save the work by clicking the Save button. The A4 size custom based template, format stored in working directory and we can use it for further work., , Resources Used, S., No., 1., , Name of, Resource, , Broad Specifications, Make, Details, , Quantity, , Remarks, (If any), , 2., 3., , XIII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 19

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Solid Modelling and Additive Manufacturing (22053), , XV, , Observations and Calculations, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XVI, , Results, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XVII Interpretation of Results, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XVIII Course proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XIX, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions so as to ensure the achievement of identified CO., 1. List the different menu bar used in software., 2. Write the purpose of Title block in drawing sheet., 3. Explain information mention in title block., , [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 20

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Solid Modelling and Additive Manufacturing (22053), , XX, , References / Suggestions for Further Reading, o https://www.youtube.com/watch?v=B96jGGkt-zk, o https://www.youtube.com/watch?v=cWCI8Klji80, o https://www.youtube.com/watch?v=zJrea53xtG8, , XXI, , Assessment Scheme, , 1, 2, , 3, 4, 5, , Performance Indicators, Weightage, Process Related (10 Marks), 40%, Use of proper commands., 20%, Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., Able to answer oral questions., 20%, Completion of work in time., 20%, Total (25 Marks), 100 %, , Names of Student Team Members, 1. ……………………….., 2. ……………………….., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 22

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Solid Modelling and Additive Manufacturing (22053), , Practical No.2: Draw and print two simple 2D geometries using sketcher, commands., I., , Practical Significance, To create a 3D feature, it is necessary to draw its 2D sketch. In the sketcher, environment the sketch of the feature is created, dimensions and constrains are, provided to sketch. The designer can make to make sure that the 2D sketch of the, product is satisfying the necessary conditions, then continue to create 3D model of the, product in the part mode., , II., , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III., , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency ‘Apply different sketcher environment commands to draw 2D, geometries of the modeling software, apply various constrains and dimensioning to, the 2D sketch’, , IV., , Relevant Course Outcome(s),  Prepare 2D Drawings using sketcher workbench of any Parametric Modeling, software., , V., , Practical Outcome,  Operate available modeling software to draw 2D sketch for engineering product., , VI., , Relative Affective Domain Working in team work.,  Follow ethical Practices., , VII., , Minimum Theoretical Background,  Basic knowledge of computer handling.,  Basic knowledge geometric constructions.,  Reading of engineering drawing.,  Basic knowledge of sketcher environment., , 23

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Solid Modelling and Additive Manufacturing (22053), , The sketcher environment Sketcher is the main creation tool ofparametric CAD software. The sketcher toolbar ribbon is, located at the top of the window. This section explores the many options of sketcher. Its basic, icons are shown in Figure. The LMB (Left Mouse Button) issued to select geometry or to, select a location when creating geometry. When you invoke the Sketch mode, the initial, screen appearance is similar to the one shown in Figure. This figure shows the Sketcher, Tools as well as Setup, Get Data, Operations, Datum, Editing, Constrain, Dimension, and, Inspect etc. toolbars displayed at the top side of the graphics window., , Reminder:, LMB = press the Left Mouse Button down, used to select points or features., RMB = press the Right Mouse Button down, used to search through a series of features or, used to bring up a pop-up menu.MMB = press the Middle Mouse Button down, used to cancel, a command, place a dimension, or accept the current value., Sketcher Tools Explained:, Now let’s explain most of the sketcher icons. It is important to note that the LMBactivates, each of the sketcher tools., , 1 Setup:, Allows you to reset the sketch plane and references, sketching options, and to reorient your, view (note this button is also on the Graphics toolbar)., Tool Name, , Symbol, , Use, Setup Tool Bar, , Grid, , Define the grid settings., , 2 Operations:, Operations Tool Bar, Tool, Name, , Select, , Symbols, , Use, Select Items tool allows you to select features already on the, screen by moving the cursor over the item, then pressing the, LMB., Select one by one entity. For next entity selection press Ctrl, and then click the entities., , Select the chain of entities., 24

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Solid Modelling and Additive Manufacturing (22053), , Select all Geometry entities., Select all items the drawn section., Datum Tool Bar, Tool, Name, , Symbol, , Use, , Centerline, , Draw an infinitely long geometric centerline byselecting two points, with the LMB., , Points, , Create a geometry point using the LMB., , Sketching Tool Bar, Tool Name, Line Chain, , Use, Draw a solid line from first LMB pick location to secondLMB, location pick., , Constructi, on Mode, , Toggle button is used to draw sketch in either geometry mode or, construction mode., , Line, Tangent, , Draw a solid line tangent between two arcs or circles, whichare, selected using the LMB., , Corner, Rectangle, , Sketch a rectangle by selecting two opposite corners of the rectangle, using the LMB., , Slanted, Rectangle, Center, Rectangle, Parallelogr, am, Center and, Point, Circle, , Symbol, , Sketch a slanted rectangle by sketching one side of the slanted, rectangle using the LMB twice, and then moving perpendicular to, this side to create the slanted rectangle’s size., Sketch a rectangle by selecting the center point of the rectangle, then, one of its four corners using the LMB, Sketch a parallelogram by sketching one side of the parallelogram, using the LMB twice, and then moving away from this side to create, the parallelogram’s shape., Draw a circle by selecting the location of the circle’s center with the, LMB, then moving away from that point to create its radius., , 3-Point, Circle, , Draw a new circle using the same center point as an existing circle., First the existing circle must be selected with the LMB, and then a, new circle appears., Draw a circle through three points which are selected by pressing, the LMB three times., , 3-Tangent, Circle, , Draw a circle tangent to three features which are selected by pressing the, LMB three times., , 3Point/Tang, ent End, Arc, , Draw a circular (constant radius) arc by selecting its two endpoints, using the LMB, then moving the cursor to size the arc’s radius or, make one end of the arc tangent to an existing feature. plus sign (+), will appear at the center of the arc., , Concentric, Circle, , 25

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Solid Modelling and Additive Manufacturing (22053), , Center and, Ends Arc, 3-Tangent, Arc, , Draw a circular (constant radius) arc by first selecting its center, point using the LMB, then moving the cursor to size the arc’s radius., Pressing the LMB sets the arc’s radius., Draw an arc tangent to three other features., , Concentric, Arc, , Draw a concentric arc using the same center point asan existing, circle or arc., , Conic Arc, , Draw a conic (variable radius) arc by selecting its two endpoints, using the LMB, then moving the cursor to size the conic arc., , Axis Ends, Ellipse, Center and, Axis, Ellipse, Spline, , Draw an ellipse by selecting the end points of the major or minor, axis, then moving perpendicular to this axis to size the other axis., Draw an ellipse by selecting its center usingLMB, one end of its, major or minor axis using LMB, then moving perpendicular to this, axis to size the other axis., Draw a free-hand spline curve by selecting spline points using the, LMB., , Circular, Fillet, , Draw a circular fillet or round tangent to two features., , Circular, Trim Fillet, , Draw a circular fillet or round tangent to two features., , Elliptical, Fillet, , Draw an elliptical fillet or round tangent to two featuresat the two, points selected on the features using the LMB., , Elliptical, Trim Fillet, , Draw an elliptical fillet or round tangent to two features at the two, points selected on the features using the LMB., , Offset, , Draw a chamfer between two intersecting lines starting at the points, selected using the LMB, then remove the line segments in the area, of the intersection of the two lines., Draw a chamfer between two intersecting lines starting at the points, selected using the LMB, then remove the line segments in the area, of the intersection of the two lines., Create duplicate geometry an offset distance from the selected, geometry., , Thicken, , Create entities by offsetting an edge or a sketched entity ontwo, sides., , Chamfer, Fillet, Chamfer, Trim Fillet, , Text, Text Along, A Curve, Palette, Construction, Centerline, , Create alpha characters and symbols on the sketch., To place text along a curve create the start and height points as, before, then check the “Place along curve” box followed by, selecting the curve to follow using the LMB., Provides you with a customizable library of predefined shapes that, you can readily import onto the active sketch plane. These shapes, are presented in a palette., Draw an infinitely long sketcher centerline by selecting two points, with the LMB., 26

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Solid Modelling and Additive Manufacturing (22053), Construction, Centerline, Tangent, , Draw an infinitely long sketcher centerline tangent to two circles or, arcs using the LMB., , Construction, Point, , Create a construction point using the LMB. This point is known, only inside sketcher and is not visible outside sketcher., , Construction, Coordinate, System, , Create a construction coordinate system at the specified point by, pressing the LMB., , Editing Tool Bar, Tool, Name, , Symbol, , Use, , Mirror, , The common way is to highlight the dimensions to be modified, using the LMB for the first. The second way is to select the tool, first, then select a dimension to be modified using the LMB., Mirror a selection of features about a specified centerline, thus, there must be a centerline present in the sketch., , Divide, Entity at, This Point, Delete, Segment, , Divide a feature at the point of selection located by pressing the, LMB. This will break a straight or curved line segment into two, parts., Will remove any line segment that is drawn through while, holding down the LMB., , Corner, , This tool is used to trim the intersection of two line segments, back to the intersection point., , Modify, , Constraint Tool Bar, Tool Name, Vertical, Constraint, , Symbol, , Use, Force the selected line to be vertical. After selecting this tool,, select the desired line using the LMB., , Horizontal, Constraint, , Force the selected line to be horizontal. After selecting this tool,, select the desired line using the LMB., , Perpendicular, Constraint, , Force two selected lines to be perpendicular to each other. After, selecting the tool, select the two lines using the LMB., , Tangent, Constraint, , Force a line, an arc, or a circle to be tangent to an arc or a circle., After selecting the tool, select the two features using the LMB., , Mid-point, Constraint, Coincident, Constraint, Symmetric, Constraint, , Force a point to locate itself at the midpoint of a line segment or, arc. After selecting the tool, select the approximate location of, the. Midpoint using the LMB, then select the line segment or arc, using the LMB., Make two points coincident, that is, the exact same point. After, selecting the tool, select the two points using the LMB., Force two points to be symmetric about the selected centerline., There must be a centerline present to use this command. After, the tool is selected, pick the governing centerline using the, 27

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Solid Modelling and Additive Manufacturing (22053), , LMB, then select the two points (one on each side of the, centerline) using the LMB., Force two or more features to be equal size. After the tool is, selected, select the governing feature (line length or radius), using the LMB,then using the LMB select all features that you, want to be the exact same size., Force two lines to be parallel. After the tool is selected, select, the governing line segment using the LMB, then using the, LMBselect all other line segments that you want to be the, parallel to the governing line segment., , Equal, Constraint, , Parallel, Constraint, , Dimension Tool Bar, Tool Name, Normal, Dimension, , Symbol, , Use, Add a strong dimension to the existing sketch., Add a perimeter dimension to the sketch after selecting a, dimension which can vary when the perimeter dimension is, modified., Create an ordinate dimension baseline, either vertical or, horizontal., , Perimeter, Baseline, , Add a reference (driven by other values) dimension to the, existing sketch. Reference dimensions are added the same way, as regular dimensions., , Reference, Dimension, , Inspect Tool Bar, Tool Name, Overlapping, Geometry, , Symbol, , Pick the Highlight Open Ends icon to highlight using green dots,, the line segments that are not connected to anything, thus they, are open ends., Pick the Shade Closed Loops icon to fill in all closed figures so, you can see which sections of your sketch are not closed for one, reason or another., , Highlight, Open Ends, Shade Closed, Loops, , Tool Name, Accept, Cancel, , Use, Pick the Overlapping Geometry icon to highlight the sketcher, geometry that overlaps so that you can correct the problem., , Symbol, , Close Sketcher from Part Mode, Use, Accept the changes made in the sketcher and exit sketcher., Cancel the changes made in sketcher and exit sketcher., , Sketcher Graphics Tool Bar, Refit, , Adjust the zoom level to fully display the object on the screen., , 28

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Solid Modelling and Additive Manufacturing (22053), , Zoom In, , Zoom in on target geometry to view it in greater detail., , Zoom Out, , Zoom out to gain a wider perspective on the geometry., , Repaint, , Redraw the current view (refresh)., , Sketcher, display filter, , Define sketcher display., , Select All, , To display all sketcher display., , Disp.Dims., , To display dimensions., , Disp.Constr., , To display constraints., , Disp.Grid., , To display grid., , Disp.Verts, , To display vertices., , VIII. Experimental setup, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., IX., , Resources Required, S., No., , Name of Resource, , Suggested Broad Specification, , Hardware: Personal, computer., , Operating system, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3, , Software, , Any parametric solid modeling, software., , 4, , Plotter, , Plotter A2 OR A3Size., , 1, , 2, , X., , Quantity, As per, batch, size, As per, batch, size, As per, batch, size, 1, , Precautions to be Followed, 1. Check given drawing for dimensional printing mistakes if any and if dimensions, are missing assume proportionate dimensions., 2. While constructing the drawing, periodically save your work., , 29

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Solid Modelling and Additive Manufacturing (22053), , XI., , ProcedureExercise No.1-Rerdaw the given 2D geometries., (Use Grid and snap to grid option), , Following steps are required to sketch the given 2D geometries in available software., (Here you can use any CAD software), A. Setting the Environment: As explained in practical No. 01., B. Set working directory: As explained in practical No. 01., C. To invoke sketcher environment- by either selecting File>New from the menu or, click on the New File icon from the main toolbar. A new window will be displayed as, shown in Figure by default. Select Sketch option from the same window to sketch the, drawing.Type name as PRACTICAL2_EXERCISE1.Click OK button., , Now you will be in the sketcher environment of the sketch as shown in Figure to, sketch the 2D geometries., , 30

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Solid Modelling and Additive Manufacturing (22053), , D. To sketch given 2D geometries1. Initially set the sketcher workbench by invoking File >Options which display a, Solid Modeling Parametric Options window as shown in Figure., , 2. By selecting Sketcher from the list of the same window, you can check on show, the Grid andSnap to grid. Also set the Number of decimal places for, dimension-2. As shown in Figure., , 3. Now click OK button. The screen will look like as shown in Figure., 4. To set the X-spacing and Y-spacing for current exercise, follow the following, procedure., , Grid icon and specify the X& Y spacing is as 5 units as shown, 5. Click on, in Figure. Then click OK button of same window. Selection of grid lines helps to, draw entities easily., , 31

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Solid Modelling and Additive Manufacturing (22053), , 6. Choose, Line button from the sketcher tool bar. Click LMB on the drawing area, and move the cursor left by 2 grid units to draw line of 10 units long as per the given, drawing. When the cursor is moved horizontally left, horizontal constraint will applied, automatically to the line as shown in Figure. Press LMB., , 7. Continue the same procedure till the point as shown in Figure., 8. Now draw the arc by selecting Arc >Center and End, , option as shown in Figure., , 9. In similar manner complete the entire close loop drawing as shown in Figure., , 10. Press the MMB. Weak dimensions will display on the sketch as shown in Figure., , 32

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Solid Modelling and Additive Manufacturing (22053), , E. Modify the Dimensions:, 1. To modify a dimension by double-clicking on its value using the LMB, and then, type a new value as per the drawing., , 2. Use, Normal Dimension option to provide additional dimensions if required, by resolving other dimensions., 3. You can also use, Modify Dimensions to change the dimensions., 4. Continue the same procedure for sketching square inside the drawing. In this way,, all sketch dimensions is changed as per the given drawing as shown in Figure, , F. ClickSave button which saves sketch by PACTICAL2_EXERCISE1with .sec file ext., G. Print the created sketch in MS Word by Print Screen Shot., , 33

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Solid Modelling and Additive Manufacturing (22053), , Exercise No.2-Rerdaw the given 2D geometries using sketcher, workbench.(Without Grid), , 1. To invoke sketcher environment-As explained in practical No.2, exercise 1.Type, name as PRACTICAL2_EXERCISE2.Click OK button., 2. Now you will be in the sketcher environment of the sketch as shown in Figure to, sketch the 2D geometries., , 3. Draw the center lines, circle center points, as shown in figure., 4. To modify a dimension by double-clicking on its value using the LMB, and then type, a new value as per the drawing., 5. You can use, , Modify option to change the dimensions as shown in Figure., , 6. Draw internal circles of given diameters at different center pointsas shown below by, using, , Circle command from sketching tool bar., 34

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Solid Modelling and Additive Manufacturing (22053), , 7. Draw the outer circles at the same center points using, given dimensions., , 8. Draw tangent lines to outer circles by using, sketching tool bar as per the given drawing., , 9. Trim the unwanted parts of circles by using, bar., , commands as per, , Line Tangent command from, , Trim command from editing tool, , 35

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Solid Modelling and Additive Manufacturing (22053), , Circular Trim command, 10. Give the fillets at respective position by using, from sketching tool bar and complete the sketch as shown in Figure., , 11. ClickSave button which saves sketch by PACTICAL2_EXERCISE2inworking, directory with .sec file extension., 12. Print the created sketch in MS Word by Print Screen Shot., , 36

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Solid Modelling and Additive Manufacturing (22053), , XII., , Resources Used, , S., No, 1., , Name of, Resource, , Broad Specifications, Make, Details, , Quantity, , Remarks, (If any), , 2., 3., XIII. Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XIV. Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XV., , Course proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XVI. Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Explain purpose of working directory in software., 2. Enlist sketcher toolbar to draw basic 2D entities., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 37

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 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......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 38

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Solid Modelling and Additive Manufacturing (22053), , XVII. Questions for Practice., , ., , XVIII. References / Suggestions for Further Reading,  https://www.youtube.com/watch?v=lpH4ZUUD9N0,  https://www.youtube.com/watch?v=qFIev5cRlW4,  https://www.youtube.com/watch?v=lpH4ZUUD9N0,  https://www.youtube.com/watch?v=sVWsUS_7V6s&list=PLrOFa8sDv6jfVMc, cV28fssFut0EG0NNb6, , XIX. Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. ………………………., 4. ……………………….., Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 39

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Solid Modelling and Additive Manufacturing (22053), , Practical No.3: Draw and print two given complex 2D geometries, using sketcher commands., I., , Practical Significance, To create a 3D feature, it is necessary to draw its 2D sketch. In the sketcher, environment the sketch of the feature is created, dimensions and constrains are, provided to sketch. The designer can make to make sure that the 2D sketch of the, product is satisfying the necessary conditions, then continue to create 3D model of the, product in the part mode., , II., , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and allied, industry., , III., , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency ‘Apply different sketcher environment commands to draw 2D, geometries of the modeling software, apply various constrains and dimensioning to, the 2D sketch’, , IV., , Relevant Course Outcome(s),  Prepare 2D Drawings using sketcher workbench of any parametric modeling, software., , V., , Practical Outcome,  Operate available modeling software to draw 2D sketch for engineering product., , VI., , Relative Affective Domain,  Working in team work.,  Follow ethical practices., , VII., , Minimum Theoretical Background,  Reading of engineering drawing.,  Basic knowledge of CAD software and commands., , 40

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Solid Modelling and Additive Manufacturing (22053), , VIII. Resources Required, S. No., , Name of Resource, , Operating system, , Suggested Broad Specification, (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 1, , Hardware: Personal, computer., , 3, , Software, , Any parametric solid modeling, software., , 4, , Plotter, , Plotter A2 OR A3 Size., , 2, , Quantity, As per, batch, size, As per, batch, size, As per, batch, size, 1, , IX. Experimental setup, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., X., , Precautions to be Followed, 1. Check given drawing for dimensional printing mistakes if any and if dimensions, are missing assume proportionate dimensions., 2. While constructing the drawing, periodically save your work., , XI., , ProcedureExercise No.1-Redraw the following given 2D geometries using sketcher, workbench as shown in Figure., , Following steps are required to sketch the given 2D geometries., , 41

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Solid Modelling and Additive Manufacturing (22053), , A. Start Solid Modeling Parametric CAD software: As explained in practical No. 01., B. Set working directory: As explained in practical No. 01., C. To create sketcher environment: As explainedin practical No.02., 1, Type name as PRACTICAL3_EXERCISE1.Click OK button., , Now you will be in the sketcher environment as shown in Figure to sketch the 2D, geometries., , D. To sketch given 2D geometries:, 1. Initially set the sketcher workbench by invoking File > Optionswhich display a, Solid Modeling Parametric Options window as shown in Figure., , 2. By selecting Sketcher from the list of the same window, specify the number of, decimal places for dimension. For the current exercise, 2 decimal places for, dimension needed. As shown in Figure., , 42

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Solid Modelling and Additive Manufacturing (22053), , 3. Now click OK button. The screen will look like as shown in Figure., , 4 Use, Centerlineoption to draw vertical and horizontal centerlines., 5 To modify a dimension bydouble-clickon its value using the LMB, and then type a, new value as per the drawing., 6 Draw one more center line inclined at an angle 51º using same procedure., 7 Use, Point option to locate the center point of the circles., 8 Use, Concentric option to draw circles of different diameter as per the, given drawing., 9 To modify a dimension of the circle by double-clickon its value using the LMB,, and then type a new value Ø 30,60,100,80,15,44,50,25 & 21 as per the drawing., , 43

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Solid Modelling and Additive Manufacturing (22053), , 10 To draw tangent lines to the circles. Use, LineTangent, option.Click Line>Line Tangent button, and select the tangent point of first, circle and tangent point of second circle as shown in Figure. Continue the, same procedure to draw four tangent lines., , 11 To draw lines parallel to the tangent lines as shown in above Figure, Choose, Line button from sketcher tool bar. Pick the first and second point, near to the tangent line. Continue the same procedure for next parallel line., Press MMB to exit.(Here parallel constraint is applied automatically), 12 To modify a dimension of the parallel lines by double-click on its value using, the LMB, and then type a new value 10 mm as per the drawing., , 1. To draw fillet of 5 mm. Use, Fillet from sketcher tool bar. Click, Fillet>Circular Trim. Select line as first entity and Ø 60 circle as second entity., Repeat the same procedure for all fillets as shown in Figure., 2. To modify a dimension of the fillet radius by double-click on its value using the LMB,, and then type a new value 5mmas per the drawing., 44

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Solid Modelling and Additive Manufacturing (22053), , 3. To trim unwanted lines, use, Delete Segment option of editing tool, bar. Click on the Delete Segment button and then choose unwanted lines one by one, as shown in Figure., , 4. Use, , Mirror option from the editing tool bar to mirror fillet and line. Click, , button, select all entities to be mirrored by keep holding Ctrl key board, button and select entities to be mirrored one by one. Once the selection complete,, release Ctrl button and click center line. The selected entities will get mirrored as, shown in Figure., , 45

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Solid Modelling and Additive Manufacturing (22053), , 5. To trim unwanted lines, use, , Delete Segmentoption of editing tool, , bar. Click on the, Delete Segmentbutton and then choose unwanted, lines one by one as shown in Figure. Draw 3 x 7 on 30 PCD as per the given, drawing., Shade Closed Loop button in active mode to appear shaded closed loop, 6. Use, portion as shown in Figure., , 46

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Solid Modelling and Additive Manufacturing (22053), , 7. Use, Figure., , E., , Sketcher Display Filter option to see final sketch as shown in, , Click Save button which saves sketch by PACTICAL3_EXERCISE1 with .sec file, extension., , Exercise No.2-Rerdaw the given 2D geometries using sketcher workbench as shown, in Figure., , Following steps are required to sketch the given 2D geometries., A. Start Solid modeling Parametric: As explained in practical No.01., B. Set working directory: As explained in practical No.01., C. To create sketcher environment: As explained in practical No.02., 1 Type name as PRACTICAL3_EXERCISE2.Click OK button., 2, Now you will be in the sketcher environment to draw sketch the 2D, geometries., 47

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Solid Modelling and Additive Manufacturing (22053), , D. To sketch given 2D geometries:, 1. Initially set the sketcher workbench by invoking File >Options which display, solid modeling parametric options window as shown in Figure., , 2. By selecting Sketcheroptionfrom the list of the same window., 3. Specify the number of decimal places for dimension. For the current exercise, 3, decimal places of dimension needed. As shown in Figure., , 4. Now click OK button. The screen will look like as shown in Figure. Now you are in, sketcher environment to draw the given sketch., 5. Use, , Centerlineoptionsto draw vertical and horizontal centerlines., , 6. To draw 5 vertical center lines, Select, and click first point and second point, vertically. Continue the same procedure for next vertical centerlines., 7. To draw 2 horizontal centerlines, continue the same procedure clicking two points, horizontally for each center line., 8. Draw one more center line inclined at an angle 40º using same procedure., 9. To modify a linear and angular dimension of centerlines, double-click on its value, using the LMB, and then type a new value according to given drawing., 10. Use, , to locate the center point of the circles., , 11. Use, given drawing., , Concentric option to draw circles of different diameter as per the, 48

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Solid Modelling and Additive Manufacturing (22053), , 12. To modify a dimension of circles, double-click on its value using the LMB, and then, type a new value according to given drawing., , 13. To draw elongated cylindrical hole, use, Palette tool. Click on, Palette icon. Palette sketcher window will appear on the screen., 14. Select Arc racetrack from the Shapes option. Drag it in drawing area as shown in, Figure., , 15. To rotate it by 180º, enter 180 values., , 16. Accept by clicking on green colored check window as shown in Figure., , 49

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Solid Modelling and Additive Manufacturing (22053), , 17. To modify a dimension of arc racetrack by double-click on its value using the LMB,, and then type a new value according to given drawing., 18. To locate arc racetrack to correct position as per the given drawing. Use, Coincident tool from the sketcher tool bar., coincident button from sketcher tool bar. Then select first point as, 19. First select, center point of the circle R 2.312 and second point will be center point of arc, racetrack., 20. Similarly coincide the remaining two points of arc racetrack with respect to circle, R2.312.Out of that one point will be coincident to intersection of point of the circle, radius R2.312 and center line which making an angle 40º with horizontal center line., The second point will be coincident to intersection of point of the circle R 2.312 and, horizontal center line of the circleR 2.312., 21. To draw elongate hole, use, Palette tool. Click on, Palette icon., Palette sketcher window will appear on the screen. Select racetrack from the Shapes, option. Drag it in drawing area as shown in Figure., 22. Accept it by clicking on green colored check window as shown in Figure., , 23. To modify a dimension of racetrack by double-clickon its value using the LMB, and, then type a new value according to given drawing., 24. To locate racetrack to correct position as per the given drawing. Use, Coincidenttool from the sketcher tool bar., 25. First select, button from sketcher tool bar. Applying same method explained, earlier case to coincident the two points of racetrack with the main sketch as shown in, Figure., , 50

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Solid Modelling and Additive Manufacturing (22053), , 26. To Offset the arc racetrack by 0.437 and offset race track by 0.313 using, Offset tool., 27. Click on offset, , from sketcher tool bar and select entity to be offset., , 28. Select, loop option. Enter off set distance 0.437 for arc racetrack. Accept, the entered value. Continue the same procedure for racetrack as shown in Figure., , 51

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Solid Modelling and Additive Manufacturing (22053), , 29. To draw the tangent circles. Use, bar., , Tangent constraint tool from constrain tool, , tool. Take care that drawn circle should not be, 30. First draw circle using, touch to any other entity., 31. Modify a dimension of above circle by double-click on its value using the LMB, and, then type a new value R1.750 according to given drawing., Tangent tool from, 32. To tangent the circleR1.750 and circleØ1.625.Click on, constraint tool bar. Then select the circle R1.750 and circle Ø1.625., 33. To tangent the circleR1.750 and outer racetrack of R 0.750. As the, in selected, mode. Select first the circleR1.750 and then select outer racetrack of R 0.750. As, shown in Figure., , 52

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Solid Modelling and Additive Manufacturing (22053), , 34. Now we have to draw a tangent circle to circle of Ø1.625 and to the outer racetrack of, R 0.875 from upper side of the drawing., tool. Take care that drawn circle should not touch, 35. First draw circle using, to any other entity., 36. Modify a dimension of above circle by double-clickon its value using the LMB, and, then type a new value R 0.625 according to given drawing., 37. To tangent the circle Ø1.625 and circle R 0. 625.Click on, Tangent tool from, constraint tool bar. Then select the first circle Ø1.625and then select circle R 0. 625., 38. To tangent the circleR 0.625 and outer racetrack of R 0.875. As the, in selected, mode. Select first the circleR 0.625 and then select outer racetrack R 0.875.As shown, in Figure., , 39. Now we have to draw tangent circle to the circle R1.375 and racetrack of R 0.875, from lower side of the sketch., tool. Take care that drawn circle should not touch, 40. First draw circle using, to any other entity., 41. Modify a dimension of above circle by double-click on its value using the LMB, and, then type a new value R 0.625according to given drawing., 42. To tangent the circle R1.375 and circle R 0. 625.Click on, Tangent tool from, constraint tool bar. Then select the first circle R1.375 and then select circle R 0. 625., 43. To tangent the circleR 0.625 and outer racetrack of R 0.875. As the, in selected, mode. Select first the circleR 0.625 and then select outer racetrack R 0.875.As shown, in Figure., , 53

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Solid Modelling and Additive Manufacturing (22053), , 44. We have to draw the tangent line to circle R1.375 and to the outer racetrack of R 0.750, from lower side of the drawing., 45. To draw tangent lines to the circlesR1.375 andto the outer racetrack of R 0.750. Use, , Line Tangentoption. ClickLine >Line Tangent button, and select the, tangent point of first circleR1.375 and then select tangent point of theouter racetrack, of R 0.750. As shown in Figure., , 46. To trim unwanted lines, use, , option of editing tool bar. Click on the, , Delete Segmentbutton and then choose unwanted lines one by one, as shown in Figure., , 54

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Solid Modelling and Additive Manufacturing (22053), , 47. To trim unwanted lines, use, , option of editing tool bar. Click on the, , Delete Segmentbutton and then choose unwanted lines one by one, as shown in Figure., 48. Use, Shade Closed Loop button in active mode to appear shaded closed loop, portion as shown in Figure., , E. Finally save your work by clicking Save, byPACTICAL3_EXERCISE2 with .sec file extension., XII. Resources Used, S., Name of Resource, No., 1., , Make, , Broad Specifications, Details, , button, , which, , Quantity, , saves, , sketch, , Remarks, (If any), , 2., , 55

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Solid Modelling and Additive Manufacturing (22053), , 3., XIII. Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XIV. Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XV., , Course proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XVI., , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Describe the Palette feature used in this session., 2. Write advantages and limitations of Palette feature used in this session., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 56

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, XVI, , Questions for Practice., , 57

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Solid Modelling and Additive Manufacturing (22053), , XVII References / Suggestions for Further Reading,  https://www.youtube.com/watch?v=KQk-hn5DZVg,  https://www.youtube.com/watch?v=lpH4ZUUD9N0, XVIII Assessment Scheme, , 1, 2, , 3, 4, 5, , Performance Indicators, Weightage, Process Related (10 Marks), 40%, Use of proper commands., 20%, Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., Able to answer oral questions., 20%, Completion of work in time., 20%, Total (25 Marks), 100 %, , Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, 4. …………………………, Marks Obtained, Process, Product, Related(10) Related(15), , Dated signature of, Teacher, Total, (25), , 58

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Solid Modelling and Additive Manufacturing (22053), , Practical No.4: Draw and Print Two Simple 3-D Drawings using 3D, Modeling Commands., I, , Practical Significance, To create solid models of any mechanical components. To learn different sketching, and modeling commands. Also understand datum features and datum plane theory., Study different geometric and modeling constraints. From design engineers point of, view, can be seen the object from various directions and in various views. It helps to, be sure that the object looks exactly as wanted. It also gives additional vision as to, what more changes can be done in the object., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills –,  Geometric constraints – overview, apply equal length.,  Dimension constraints, weak, strong, locked.,  Viewing the model – default, flat sketch view, spin.,  Datum plane - visibility.,  Dashboard interface., , IV, , Relevant Course Outcome(s),  Generate 3D models from 2D sketches using Part workbench of any parametric, solid modeling software., , V, , Practical Outcome,  Operate available modeling software to draw 3D Models of any engineering, product., , VI, , Relative Affective Domain Working in team work.,  Practice good housekeeping.,  Demonstrate working as a leader/a team member.,  Follow ethical practices., 59

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Solid Modelling and Additive Manufacturing (22053), , VII, , Minimum Theoretical Background,  Basic knowledge of reading of 3D objects.,  Knowledge of creating working directory., Mouse Buttons,  Left Button -Most commonly used for selecting objects on the screen or, sketching.,  Right Button –Used for activating pop-up menu items, typically used when, editing. (Note: you must hold the down button for 2 seconds),  Center Button – (option) Used for model rotation, dimensioning, zoom when, holding Ctrl key, and pan when holding Shift key. It also cancels commands and, line chains.,  Center Scroll Wheel – (option) same as Center Button when depressed, only it, activates Zoom feature when scrolling wheel., Solid modeling interface., , In the Graphics toolbar at the top of the graphics area, disable or enable the display of, any datum features whenever you want., , Figure- Datum Features., Sketch Constraints & Relations:, , 60

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Solid Modelling and Additive Manufacturing (22053), , Constraint, , Geometric entities to, select, , Horizontal or, Vertical, , One or more lines or two, or more points., , Collinear, , Two or more lines., , Perpendicular, , Two lines., , Parallel, Tangent, Concentric, Midpoint, Coincident, Equal, Symmetric, , VIII, , Two or more lines., A line and a plane (or a, planar face) in a 3D sketch., An arc, ellipse, or spline,, and a line or arc., Two or more arcs, or a, point and an arc., Two lines or a point and a, line., A point and a line, arc, or, ellipse., Two or more lines or two, or more arcs., A centerline and two, points, lines, arcs, or, ellipses., , The lines become horizontal or, vertical (as defined by the current, sketch space). Points are aligned, horizontally or vertically., The items lie on the same infinite, line., The two items are perpendicular to, each other., The items are parallel to each other., The line is parallel to the selected, plane., The two items remain tangent., The arcs share the same centerpoint., The point remains at the midpoint of, the line., The point lies on the line, arc, or, ellipse., The line lengths or radii remain, equal., The items remain equidistant from, the centerline, on a line, perpendicular to the centerline., , Resources Required, , S. No., , Name of Resource, , 1., , Hardware: Personal, computer., Operating system, , Suggested Broad Specification, (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3., , Software, , Any parametric solid modeling, software., , 4., , Plotter, , Plotter A2 OR A3Size., , 2., , IX, , Resulting Constraint, , Quantity, As per, batch, size, As per, batch, size, As per, batch, size, 1, , Experimental setup:, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 61

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Solid Modelling and Additive Manufacturing (22053), , X, , Precautions to be Followed, 1. Student should understand and can draw at least two Orthographic views of any, model., 2. While constructing 2D sketch, boundary (Area) of any profile should be enclosed., 3. While specifying dimensions, carefully select the entity or end points of entity and, click the middle button (roller) of mouse., 4. Check given drawing for dimensional printing mistakes if any and if dimensions, are missing assume proportionate dimensions., 5. While constructing the drawing, periodically save your work., , XI, , Procedure, Exercise No.1-Createfollowinggiven 3D part using part modeling workbench of, CAD software., , Following steps are required to create given solid 3D part in part modeling workbench., A. Start Solid modeling., B. Set the working directory., C. Start part model environment., D. Selecting the Sketching Plane for the Base Feature., E. Creating and Dimensioning the Sketch for the Base Feature., F. Selecting the Sketching Plane for the Second Feature., G. Creating and Dimensioning the Sketch for the Second Feature., H. Selecting the Sketching Plane for the Third Feature., I., Creating and Dimensioning the Sketch for the Third Feature., J., Selecting the Sketching Plane for the Forth Feature., K. Creating and Dimensioning the Sketch for the Forth Feature., L. Selecting the Sketching Plane for the Fifth Feature., M. Creating and Dimensioning the Sketch for the Fifth Feature., N. Save the part and close the file., O. Print drawing of part., A. Start Solid modeling parametric: As explained in practical No.01., B. Set Working Directory: As explained in practicalNo.01., C. Start part model environment-, , 62

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Solid Modelling and Additive Manufacturing (22053), , 1.Selecting File>New, from the menu or click on the New File icon from, the main toolbar. A new window will be displayed as shown in Figure by, default., 2.Select Part, option from the same window, to sketch the, drawing.Type name as PRACTICAL4_EXERCISE1.Click OK button., 3.In the New dialog box, notice the default object Type is Part and Sub-type is, Solid, these are the correct options for creating a solid part. Give the suitable, Name for the model. Uncheck the Use default template and click OK., , 4. New File Box window will display on the screen., 5. Then from New File options dialog box select solid partmmns_part_solid or, solid_part_mmksand click OK., , 6, , The part modeling workbench will display on the screen as shown in Figure., , D. Selecting the Sketching Plane for the Base Feature:, 1 Now we have to create first base feature of the given part. So we need to draw a, sketch of first feature on any one of the default plane., , 63

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Solid Modelling and Additive Manufacturing (22053), , 2 Click on, Sketch button from part modeling tool bar. Then Sketch window, will appear as shown in Figure., , 3 Select the correct plane as per the part orientation by just clicking on the default, plane. Click on Sketch button of the sketch window., , 4 Click on, Orient View button to orient the view parallel to screen., E. Creating and Dimensioning the Sketch for the Base Feature:, 1 Select, from Sketching tool bar to draw rectangle. Giving first corner, of rectangle as the origin and second point as shown in Figure. Click MMB to exit., , 2 To modify a dimension double-clickon its value using the LMB, and then type a, , new value 90 X 50 mm as per the drawing., colored Check mark., , 3 Select, , Accept it by clicking on green, , button of part modeling tool bar., 64

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Solid Modelling and Additive Manufacturing (22053), , 4 Mention the height of, of extrude. Click on, extrude correct., 5, , 10 mm,Click on, , to change depth direction, , for preview, and finally click on, , accept button if, , Finally first feature of the part will look like as shown in Figure., , F. Selecting the Sketching Plane for the Second Feature:, 1 Click on, Sketch button from part modeling tool bar. Then Sketch window, will appear as shown in Figure., 2 Take the cursor on the top plane, and click on it., 3 Click on Sketch of the sketch window., 4 Click on, Orient View button to orient the view parallel to screen. Then top, plane of the first feature will ready for sketching of the second feature., , G., , Creating and Dimensioning the Sketch for the Second Feature., 1 Select, , from Sketching tool bar to draw rectangle., 65

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Solid Modelling and Additive Manufacturing (22053), , 2 Use, 3 Select, , constraint tool to coincident three sides of the above rectangle., and then select line and edge of the first features as shown in Figure., , 4 To modify a dimension double-click on its value using the LMB, and then type a, new value 20 mm as per the drawing. Accept it by clicking on green colored, Check mark., , 5 Select, , button of part modeling tool bar., , 66

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Solid Modelling and Additive Manufacturing (22053), , 6 Mention the height of, of extrude. Click on, if extrude correct., , 10 mm, Click on, , to change depth direction, , for preview, and finally click on, , Accept button, , 7 Finally first feature of the part will look like as shown in Figure., , H. Selecting the Sketching Plane for the Third Feature:, sketch button from part modeling tool bar. Then Sketch window, 1 Click on, will appear., 2 Take the cursor on the appropriate top plane according to given part, and click on, it., 3 Click on Sketch of the sketch window., 4 Click on, Orient View button to orient the view parallel to screen. Then top, plane of the first feature will ready for sketching of the third feature as shown in, Figure., , I. Creating and Dimensioning the Sketch for the Third Feature., 1 Select, , from Sketching tool bar to draw rectangle., , 67

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Solid Modelling and Additive Manufacturing (22053), , 2, , Use, , 3, , Select, , constraint tool to coincident two sides of the above rectangle., and then select line and edge first features as shown in Figure., , 4 To modify a dimension double-clickon its value using the LMB, and then type a, new value 40 X 20 mm as per the drawing. Accept it by clicking on green, colored Check mark., , 5, , Select, , button of part modeling tool bar., , 68

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Solid Modelling and Additive Manufacturing (22053), , 6, , Mentionthe height of, direction of extrude. Click on, Accept button if extrude correct., , 7, , 20 mm , Click on, , to change depth, , for preview, and finally click on, , Finally first feature of the part will look like as shown in Figure., , J. Selecting the Sketching Plane for the Forth Feature:, 1, , Click on, Sketch button from part modeling tool bar. Then Sketch, window will appear., 2 Take the cursor on the appropriate plane according to given part, and click on, it., 3 Click on Sketch of the sketch window., , 4, , Click on, Orient View button to orient the view parallel to screen. Then, plane of the second feature will ready for sketching of the forth feature as, shown in Figure., , 69

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Solid Modelling and Additive Manufacturing (22053), , K. Creating and Dimensioning the Sketch for the Forth Feature:, , 5, , 1, , Select, , 2, , Use, , 3, 4, , Select, and then select line and edge second features as shown in Figure., To modify a dimension double-clickon its value using the LMB, and then type a, new value 20 X 20 mm as per the drawing. Accept it by clicking on green check, mark., , Select, , from Sketching tool bar to draw rectangle., , Constraint tool to coincident two sides of the above rectangle., , button of part modeling tool bar., , 70

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Solid Modelling and Additive Manufacturing (22053), , 6, , Mention the height of, on, , remove material. Click, , to change depth direction of extrude. Click on, , and finally click on, 7, , 20 mm, Click on, , for preview,, , accept button if extrude correct., , Finally forth feature of the part will look like as shown in Figure., , L. Selecting the Sketching Plane for the Fifth Feature:, Sketch button from part modeling tool bar. Then Sketch window, 1 Click on, will appear., 2 Take the cursor on the first feature top plane according to given part, and click on it., 3 Click on Sketch of the sketch window., 4 Click on, Orient View button to orient the view parallel to screen. Then plane, of the first feature will ready for sketching of the fifth feature as shown in Figure., , 71

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Solid Modelling and Additive Manufacturing (22053), , M. Creating and Dimensioning the Sketch for the Fifth Feature:, 1 Select, , 2 Use, , from sketching tool bar to draw rectangle., , Constraint tool to coincident two sides of the above rectangle., , 3 Select, and then select line and edge second features as shown in Figure., 4 To modify a dimension double-clickon its value using the LMB, and then type, a new value 20 X 30 mm as per the drawing. Accept it by clicking on green, , 5, , Select, , button of part modeling tool bar., , 72

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Solid Modelling and Additive Manufacturing (22053), , 6, , Mention the height of, Click on, , remove material., , to change depth direction of extrude.Click on, , preview, and finally click on, , 7, , 10 mm, Click on, , for, , accept button if extrude correct., , Finally fifth feature of the part will look like as shown in Figure., , N. Save the part and close the file., O. Print drawing of the part., 1 Open part model to be print., 2 Start new drawing file. Click File> Drawing .Uncheck on Use default, template. Click OKas shown in Figure., , 73

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Solid Modelling and Additive Manufacturing (22053), , 3 New definition dialog box will display, choose Empty with formatoption. Browse, format of the template prepared as practical4_templatefrom the working directory., , 74

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Solid Modelling and Additive Manufacturing (22053), , 4 Select Layout option from drawing tool bar. Choose General, .Select Default, views and OK., 6 Move the cursor in A4 size sheet, and double click. Choose the views according to, First Angle Method and locate it correct position., 7 Click on Annotate option from drawing tool bar and give the dimensions as shown, in Figure., 8 Finally the front ,top and side view as per the First angle Method will seen as shown, in Figure with dimension., , 9 Click Save button to save the drawing in working directory., Exercise No.1- Create followinggiven 3D part using part modeling workbench, of CAD software., , 75

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Solid Modelling and Additive Manufacturing (22053), , Following steps are required to create given solid 3D part in part modeling workbench., A. Start Solid modeling., B. Set the working directory., C. Start part model environment., D. Selecting the Sketching Plane for the Base Feature., E. Creating and Dimensioning the Sketch for the Base Feature., F., Selecting the Sketching Plane for the Second Feature., G. Creating and Dimensioning the Sketch for the Second Feature., H. Selecting the Sketching Plane for the Third Feature., I., Creating and Dimensioning the Sketch for the Third Feature., J., Save the part and close the file., K. Printing of part drawing., A. Start Solid modeling parametric: As explained in practical No.01., B. Set Working Directory:As explained in practical No.01., C. Start part model environment: As explained in practical No.04 Exercise1., 1 Type name as PRACTICAL4_EXERCISE2.Click OK button as shown in figure., , 2 New File Box window will display on the screen., 3 Then from New File options dialog box select ‘solid_part_mmks’ and click OK., 4 Part modeling workbench will display on the screen., D. Selecting the Sketching Plane for the Base Feature:, 5 Now we have to create first base feature of the given part. So we need to draw a, sketch of first feature on any one of the default plane., , 76

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Solid Modelling and Additive Manufacturing (22053), , 6, , Click on, Sketch button from part modeling tool bar. Then Sketch, window will appear as shown in Figure., , 7, , Select the correct plane as per the part orientation by just clicking on the, default plane. Click on Sketch button, , 8 Click on, Orient View button to orient the view parallel to screen., E. Creating and Dimensioning the Sketch for the Base Feature., 1 Activate the grid from the View option tool bar as shown in Figure., , 2, , Click File>Options>Sketcher. Set the grid spacing by 5 mm as shown in, Figure. Click OK button., , 6, , Select, shown in figure., , from sketching tool bar to draw line close loop profile as, , 77

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Solid Modelling and Additive Manufacturing (22053), , 7. Click MMB to exit. Weak dimensions will appear on the drawing., , F. To modify a dimension double-clickon its value using the LMB, and then type a new, value as per the drawing. Accept it by clicking on green colored Check mark., , 7, , Select, , button of part modeling tool bar., , 78

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Solid Modelling and Additive Manufacturing (22053), , 8, , Mention the height of, direction of extrude. Click on, accept button if extrude correct., , 9, , 100 mm, Click on, , to change depth, , for preview, and finally click on, , Finally base feature of the part will look like as shown in Figure., , G. Selecting the Sketching Plane for the second Feature:, , 79

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Solid Modelling and Additive Manufacturing (22053), , 5, , Click on, Sketch button from part modeling tool bar. Then Sketch window, will appear., 6 Take the cursor on the appropriate plane according to given part, and click on, it., 7 Click on Sketch of the sketch window., 8, , Click on, Orient View button to orient the view parallel to screen. Then, plane of the second feature will ready for sketching of the second feature as, shown in Figure., , H. Creating and Dimensioning the Sketch for the second Feature., 2, , Select, , from Sketching tool bar to draw rectangle., , constraint tool to coincident two sides of the above rectangle., , 6, , Use, , 7, , Select, and then select line and edge of the first features as shown in, Figure., To modify a dimension double-clickon its value using the LMB, and then, type a new value 20 X 50 mm as per the drawing. Accept it by clicking on, green check mark., , 8, , 80

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Solid Modelling and Additive Manufacturing (22053), , 9, , 8, , Select, , button of part modeling tool bar., , Mention the height of, on, , 40 mm, Click on, , remove material. Click, , to change depth direction of extrude. Click on, , for preview,, , and finally click on, accept button if extrude correct. You will get second, feature of the part as shown in Figure., , 81

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Solid Modelling and Additive Manufacturing (22053), , I. Selecting the Sketching Plane for the Third Feature., 10 Click on, Sketch button from part modeling tool bar. Then Sketch, window will appear., 11 Take the cursor on the first feature top plane according to given part, and click, on it., 12 Click on Sketch of the sketch window., , 1, , Click on, Orient View button to orient the view parallel to screen. Then, plane of the first feature will ready for sketching of the third feature as shown, in Figure., , 82

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Solid Modelling and Additive Manufacturing (22053), , J. Creating and Dimensioning the Sketch for the Third Feature., 1 Select, , 2 Use, , from Sketching tool bar to draw rectangle., , constraint tool to coincident two sides of the above rectangle., , 3 Select, and then select line and edge first features as shown in Figure., 4 To modify a dimension double-click on its value using the LMB, and then type a, new value 40 X 25 mm as per the drawing. Accept it by clicking on green, , 83

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Solid Modelling and Additive Manufacturing (22053), , button of part modeling tool bar., , 2, , Select, , 8, , Mention the height of, on, , to change depth direction of extrude.Click on, , finally click on, 9, , 25 mm, Click on, , remove material. Click, for preview, and, , accept button if extrude correct., , Finally third feature of the part will look like as shown in Figure., , 5. Save the part and close the file., K. Print drawing of the part:, 1 Open part model to be print., 2 Start new drawing file. Click File> Drawing .Uncheck on Use default, template., 3 Type the name practical4_exercise2.Click OK as shown in Figure., , 84

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Solid Modelling and Additive Manufacturing (22053), , 4, , New definition dialog box will display, choose Empty with formatoption., Browse format of the template prepared as practical4_ex2_templatefrom the, working directory., , 5, , A4 size template will available for part drawing as shown in Figure., , 85

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Solid Modelling and Additive Manufacturing (22053), , 5 Select Layout option from drawing tool bar. Choose General, viewsandclick OK., , 1, 2, , 1., , .Select Default, , Move the cursor in A4 size sheet, and double click. Choose the views, according to First Angle Method and locate it correct position., Choose FRONT from Model view names window. Select Apply> Close, , SelectView Displayoption. Choose Hidden option., , 86

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Solid Modelling and Additive Manufacturing (22053), , 2., 3., , Select, button from drawing tool bar., Repeat the same procedure for next view according to First Angle of Projection, as shown in Figure., , 4., , Click on, , Annotate option from drawing tool bar. Choose, dimensions button and give the dimensions as shown in Figure., , 5. Finally the front ,top and side view as per the First angle Method will seen, as shown in Figure with dimension., 6. Click Save button to save the drawing in working directory., XII, , Resources Used, S., Name of, No., Resource, 1., , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., 3., XIII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 87

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Solid Modelling and Additive Manufacturing (22053), , .........................................................................................................................................., .........................................................................................................................................., XV, , Course proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XVI, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., , Questions:, 1. Explain application of solid modeling in industry., 2. List different types of tool bar used in part modeling., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 88

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, , XVII References / Suggestions for Further Reading,  https://www.youtube.com/watch?v=ZUPRT95V4Ek,  https://www.youtube.com/watch?v=OPmjH5QfiRs,  https://www.youtube.com/watch?v=O78bWdxjqWs, XVIII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, , Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Marks Obtained, Process, Product, Related(10) Related(15), , Dated signature of, Teacher, Total, (25), , 89

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Solid Modelling and Additive Manufacturing (22053), , Practical No.5: Develop Solid Models Of Individual Components Of, Bench Vice / Drill Jig / Screw Jack / Tool Post, Assembly Consisting Of At Least Five Parts., I, , Practical Significance, To create solid models of any mechanical components. To learn different sketching, and modeling commands. Also understand datum features and datum plane theory., Study different geometric and modeling constraints. From design engineers point of, view, can be seen the object from various directions and in various views. It helps to, be sure that the object looks exactly as wanted. It also gives additional vision as to, what more changes can be done in the object., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills –,  Starting and creating new parts.,  Controlling the display of datum features datum plane theory.,  Datum plane - visibility.,  Dashboard interface.,  Revolve Protrusion., , IV, , Relevant Course Outcome(s),  Generate 3D models from 2D sketches using Part workbench of any parametric, Modeling software., Practical Outcome,  Operate available modeling software to draw 3D Models of any engineering, product., , V, , VI, , Relative Affective Domain Working in team work.,  Practice good housekeeping.,  Demonstrate working as a leader/a team member.,  Follow ethical Practices., 90

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Solid Modelling and Additive Manufacturing (22053), , VII, , Minimum Theoretical Background,  Basic knowledge of reading of 3D objects.,  Knowledge of creating working directory.,  Basic knowledge of preparation of 2D sketches., , VIII, , Resources Required, , S., Name of Resource, No., 1., , Hardware: Personal, computer., , 2., , Operating system, , 3., 4., , Software, Plotter, , Suggested Broad Specification, (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., Any parametric solid modeling, software., Plotter A2 OR A3Size., , Quantity, As per, batch size, As per, batch size, As per, batch size, 1, , IX, , Precautions to be Followed, 1. Student should understand and can visualize at least two Orthographic views of, any model., 2. Check given drawing for dimensional printing mistakes if any and if dimensions, are missing assume proportionate dimensions., 3. While using Sweep or Helical sweep command, need to draw reference axis,, reference line, trajectory and helical sweep section. These activity should do, carefully., 4. While constructing the drawing, periodically save your work., , X, , Procedure, For Setting the Working Directory and Selection of Sketching Plane (Step 1 & Step 2):, Follow the steps as explained in Previous Practical’s., Step 3: Create a sketch to define the shape of Body of the Screw Jack., 1. Draw a Centerline, , by picking from ‘Datum’ group. Place the, , centerline by picking two co-linear points as shown in Figure., , Construction of centerline, 91

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Solid Modelling and Additive Manufacturing (22053), , 2. Create a profile shown in the Figure with the help of Line chain, command from sketching group., , Line Dashboard., , View of Screw Jack Body., , Profile of Screw Jack Body without Fillet., , 3. Create and Edit the dimensions by using, Normal, , from Dimension group., , Dashboard of Normal Dimensions., , 4. Click OK, from the Close group of the Sketch tab to, complete the sketch and return to the Revolve / Extrude dashboard., , 92

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Solid Modelling and Additive Manufacturing (22053), , Then click on Revolve, centerline., , command from Shapes group then select axis /, , Dashboard of Revolve command, Revolved Feature - creates features that add or remove material by revolving one or more, profiles around a centerline. The feature can be a solid, a thin feature, or a surface., , Axis of revolution for body profile., , Angle of rotation and Accept Dashboard., , 5. Enter an angle value as 360 and click Accept button., We will get body of the screw jack without fillets as shown in the Figure., 93

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Solid Modelling and Additive Manufacturing (22053), , Body of Screw Jack without fillets., , 6. Then provide the fillets with the help of Round, command from, engineering group at required corners / edges and specify respective radius and click, on Accept, , button. Do this activity separately for every edge., , Radius and Accept dashboard., , (a), , (b), , (c), Fig. (a), (b), (c) – Fillets at different edges and corners, 94

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Solid Modelling and Additive Manufacturing (22053), , We will get final shape of Screw Jack Body with Fillets as shown in the Figure., , Body of Screw Jack with fillets., 7. Saving your work, , , , In the Quick Access toolbar, click Save, to save your model., In the Save Object dialog, click OK to specify that the model will be saved to, your working directory., , XI, Resources Used, S., Name of, No., Resource, 1., 2., 3., , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , XII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 95

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Solid Modelling and Additive Manufacturing (22053), , XIV, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XV, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., , XVI, , Questions:, 1. State the meaning of mmns, mmks., 2. List different uses of mouse buttons., [Space for Answer], , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 96

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, XVII References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=XlsaSe444AE, 2. https://www.youtube.com/watch?v=b6b9FY14PKw, 3. https://www.youtube.com/watch?v=X0AMdUMNsDI, XVIII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 97

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Solid Modelling and Additive Manufacturing (22053), , Practical No.6: Develop solid models of individual components of Bench, Vice / Drill Jig / Screw Jack / Tool Post / anyone, assembly consisting of at least five parts, I, , Practical Significance, To create solid models of any mechanical components.To learn different sketching and, modeling commands. Also understand datum features and datum plane theory. Study, different geometric and modeling constraints. From design engineers point of view,, can be seen the object from various directions and in various views. It helps to be sure, that the object looks exactly as wanted. It also gives additional vision as to what more, changes can be done in the object., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills,  Starting and creating new parts.,  Datum plane - visibility.,  Dashboard interface.,  Revolve Protrusion., , IV, , Relevant Course Outcome(s),  Generate 3D models from 2D sketches using Part workbench of any parametric, Modeling software., , V, , Practical Outcome, Operate available modeling software to draw 3D Models of any engineering, , product., , VI, , Relative Affective Domain Demonstrate working as a leader/a team member.,  Follow ethical Practices., , 98

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Solid Modelling and Additive Manufacturing (22053), , VII, , Minimum Theoretical Background,  Basic knowledge of reading of 3D objects.,  Knowledge of creating working directory.,  Basic knowledge of preparation of 2D sketches.,  Basic knowledge of computer handling.,  Basic knowledge of geometric and dimensional constructions., , VIII, , Resources Required, , S., No., 1., , 2., 3., 4., , Name of Resource, Hardware: Personal, computer., Operating system, Software, Plotter, , Suggested Broad Specification, , Quantity, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., Any parametric solid modeling, software., Plotter A2 OR A3Size., , As per, batch size, As per, batch size, As per, batch size, 1, , XVI, , Precautions to be Followed, 1. Student should understand and can visualize at least two Orthographic views of, any model., 2. While constructing 2D sketch, boundary (Area) of any profile should be enclosed., 3. While specifying dimensions, carefully select the entity or end points of entity and, click the middle button (roller) of mouse., 4. Check given drawing for dimensional printing mistakes if any and if dimensions, are missing assume proportionate dimensions., 5. While using Sweep or Helical sweep command, need to draw reference axis,, reference line, trajectory and helical sweep section. These activity should do, carefully., 6. While constructing the drawing, periodically save your work., , IX, , Procedure, For Setting the Working Directory and Selection of Sketching Plane (Step 1 & Step 2):, Follow the steps as explained in First Practical., Step 3: Create a sketch to define the shape of Nut of the Screw Jack., 1. Draw a Centerline by picking, from ‘Datum’ group. Place the, centerline by picking two co-linear points as shown in Figure., , 99

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Solid Modelling and Additive Manufacturing (22053), , Construction of centerline, 2. Create a profile shown in the Figure with the help of Line chain, command from sketching group., , Line Dashboard., , View of Screw Jack Nut., , Profile of Screw Jack Nut without Fillet., , 3. Create and Edit the dimensions by using Normal, , from Dimension group., , 100

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Solid Modelling and Additive Manufacturing (22053), , Dashboard of Normal Dimensions., , from the Close group of the Sketch tab to complete the sketch and, 4. Click OK, return to the Revolve / Extrude dashboard., , Dashboard of Accept., , 5. Then click on Revolve, centerline., , command from Shapes group then select axis /, , Dashboard of Revolve command, Revolved Feature - creates features that add or remove material by revolving one or more, profiles around a centerline. The feature can be a solid, a thin feature, or a surface., , Axis of revolution for Nut profile., , 101

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Solid Modelling and Additive Manufacturing (22053), , 6. Enter an angle value as 360 and click Accept, , button., , Angle of rotation and Accept Dashboard., We will get body of the screw jack without fillets as shown in the Figure., , Nut of Screw Jack without fillets., , command from, 7. Then provide the fillets with the help of Round, Engineering group at required corners / edges and specify respective radius and click, on Accept, , button. Do this activity separately for every edge., , Radius dashboard., , Round command dashboard., , (a), , (b), , 102

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Solid Modelling and Additive Manufacturing (22053), , (c), (a), (b), and (c) – Fillets at different corners and edges., We will get final shape of Screw Jack Nut with Fillets as shown in the Figure., , Nut of Screw Jack with fillets., 8. Saving your work, • In the Quick Access toolbar, click Save, to save your model., • In the Save Object dialog, click OK to specify that the model will be saved to your, working directory., X, , Resources Used, S., Name of, No. Resource, 1., , Broad Specifications, Make, Details, , Quantity, , Remarks, (If any), , 2., 3., XI, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 103

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Solid Modelling and Additive Manufacturing (22053), , XIII, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., Questions:, 1. State any two elements required for Revolve Protrusion., 2. Explain different methods of selection of sketching planes., 3. List five uses of datum planes., , [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 104

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, , XV, , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=XlsaSe444AE, 2. https://www.youtube.com/watch?v=b6b9FY14PKw, 3. https://www.youtube.com/watch?v=X0AMdUMNsDI, , XVI, , Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, , Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 105

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Solid Modelling and Additive Manufacturing (22053), , Practical No.7: Develop Solid Models Of Individual Components Of Bench, Vice / Drill Jig / Screw Jack/ Tool Post / Anyone Assembly, Consisting Of At Least Five Parts., I, , Practical Significance, To create solid models of any mechanical components.To learn different sketching and, modeling commands. Also understand datum features and datum plane theory. Study, different geometric and modeling constraints. From design engineers point of view,, can be seen the object from various directions and in various views. It helps to be sure, that the object looks exactly as wanted. It also gives additional vision as to what more, changes can be done in the object., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills –,  Starting and creating new parts.,  Dashboard interface.,  Revolve Protrusion.,  Sweep and Helical Sweep.,  Concept of Trajectory., , IV, , Relevant Course Outcome(s),  Generate 3D models from 2D sketches using Part workbench of any parametric, Modeling software., , V, , Practical Outcome, , Operate available modeling software to draw 3D Models of any engineering, product., , VI, , Relative Affective Domain Demonstrate working as a leader/a team member.,  Follow ethical Practices., , 106

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Solid Modelling and Additive Manufacturing (22053), , VII, , Minimum Theoretical Background,  Basic knowledge of reading of 3D objects.,  Knowledge of creating working directory.,  Basic knowledge of preparation of 2D sketches.,  Basic knowledge of computer handling.,  Basic knowledge of geometric and dimensional constructions., , VIII, , Resources Required, , S., No., 1., , 2., 3., 4., , Name of Resource, Hardware: Personal, computer., Operating system, Software, Plotter, , Suggested Broad Specification, , Quantity, , (i5 or higher), RAM minimum 4 GB; A3, / A4 size printer / plotter. Display-wide, Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., Any parametric solid modeling software., , As per, batch size, , Plotter A2 OR A3Size., , As per, batch size, As per, batch size, 1, , IX, , Precautions to be Followed, 1. Student should understand and can visualize at least two Orthographic views of, any model., 2. While constructing 2D sketch, boundary (Area) of any profile should be enclosed., 3. While specifying dimensions, carefully select the entity or end points of entity and, click the middle button (roller) of mouse., 4. Check given drawing for dimensional printing mistakes if any and if dimensions, are missing assume proportionate dimensions., 5. While using Sweep or Helical sweep command, need to draw reference axis,, reference line, trajectory and helical sweep section. These activities should do, carefully., 6. While constructing the drawing, periodically save your work., , X, , Procedure, For Setting the Working Directory and Selection of Sketching Plane (Step 1 & Step 2):, Follow the steps as explained in First Practical., Step 3: Create a sketch to define the shape of Screw Spindle of the Screw Jack., , 1. Draw a Centerline, by picking from ‘Datum’ group. Place the centerline, by picking two co-linear points as shown in alongside Figure., , 107

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Solid Modelling and Additive Manufacturing (22053), , Construction of centerline., , 2. Create a profile shown in the Figure with the help of Line chain, command from sketching group., , Line Dashboard., , View of Screw Spindle., 108

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Solid Modelling and Additive Manufacturing (22053), , Profile of Screw Spindle., , 3. Create and Edit the dimensions by using Normal, , from Dimension group., , Dashboard of Normal Dimension., , 4. Click OK, from the Close group of the Sketch tab to complete the sketch and, return to the Revolve / Extrude dashboard., , Dashboard of Accept., , 5. Then click on Revolve, centerline., , command from Shapes group then select axis /, , Dashboard of Revolve command., 109

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Solid Modelling and Additive Manufacturing (22053), , Revolved Feature - creates features that add or remove material by revolving one or, more profiles around a centerline. The feature can be a solid, a thin feature, or a, surface., , Axis of revolution for Screw Spindle., , 6. Take revolution angle as 360. And click on Accept, , button., , Angle of rotation and Accept Dashboard., We will get Screw Spindle of the screw jack without threads as shown in the, Figure., , Screw Spindle without Hole & Threads., 7. Create a throughout hole on central reference plane (Shank portion) of Screw Spindle, at specified distance., i), ii), , Go to Sketch menu., Set a line reference by clicking Setup group > References and select the edge, as shown in the Figure[Line (Reference)], 110

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Solid Modelling and Additive Manufacturing (22053), , References Dashboard., iii), , Draw circle on the axis as shown and edit dimensions, diameter as 12mm and, distance as 35mm from reference line., , Circular Sketch for circular Hole., , iv), v), , Click Accept / OK, from the Close group of the Sketch tab to complete, the sketch and return to the Revolve / Extrude dashboard., Click on ‘Extrude from sketch plane by a specified depth value’ feature., , (a)–Extrude Dashboard., OR click on ‘Extrude on both sides of sketch plane by half the specified depth, value in each direction’ feature., , 111

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Solid Modelling and Additive Manufacturing (22053), , (b)– Extrude Dashboard., vi), vii), , Drag the reference handles and set the dimension of the hole and its depth, in, the extrude dashboard., Then click on ‘Remove Material’ feature as shown below., , Remove material Dashboard., viii), , Then click Accept, , to finish the feature creation., , Accept Dashboard., We will get the throughout hole as shown in Figure below., , (a)-Completed Hole feature., , 112

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Solid Modelling and Additive Manufacturing (22053), , ix), , By selecting another reference plane, follow the same procedure to create, another throughout hole on Shank Portion of Screw Spindle as shown in the, Figure., , (b)– Completed Hole feature from both side., 8. Create Threads on Screw Spindle., i), Go to Sketch menu., ii), Set a reference by clicking Setup group >, References and select left side edge as a reference, shown in the Figure., , Reference Dashboard. Reference line, Trajectory & Center line, iii), iv), , v), , Draw Trajectory by using line command on earlier created reference i.e. on left, side of spindle surface., Then draw geometrical centerline at the axis of spindle by using centerline, command from datum group as shown in the Figure., Then click Accept, , button., , 113

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Solid Modelling and Additive Manufacturing (22053), , Note:-Start point or end point of the Trajectory should be somewhat away from, vi), , the bottom surface of the object as shown in the Figure., By taking Helical Sweep Command, then select create or edit sweep section, command and draw section of screw thread (i.e. Sweep Section) at the End, Point of the Trajectory / Line, by using Center Rectangle command, considering pitch of screw thread as 7mm., , Helical Sweep Dashboard, , Pitch of Screw Dashboard., , Construction of Center Rectangle, , Rectangular Thread Section at the end of Trajectory., 114

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Solid Modelling and Additive Manufacturing (22053), , vii), , Click on Remove Material button., , Threaded Screw, , viii), , Then click on Accept, , button., , We will get threads on Spindle as shown in the Figure., , Completed threaded Screw Spindle., Finally we will get final shape of Screw Spindle with all features as shown in the, Figure., , 115

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Solid Modelling and Additive Manufacturing (22053), , 9. Saving your work, • In the Quick Access toolbar, click Save, , to save your model., , • In the Save Object dialog, click OK to specify that the model will be saved to your, working directory., XI, , Resources Used, S., No., 1., , Name of, Resource, , Broad Specifications, Make, Details, , Quantity, , Remarks, (If any), , 2., 3., XII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XV, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., Questions:, 1. List three uses of datum axes., 2. Explain Normal dimension feature., 3. Explain the model tree., 116

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Solid Modelling and Additive Manufacturing (22053), , 4. Use of Reference line during threading process., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 117

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, , XVI, , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=XlsaSe444AE, 2. https://www.youtube.com/watch?v=b6b9FY14PKw, 3. https://www.youtube.com/watch?v=X0AMdUMNsDI, , XVII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 118

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Solid Modelling and Additive Manufacturing (22053), , Practical No.8 : Develop Solid Models of Individual Components of Bench, Vice / Drill Jig / Screw Jack / Tool Post Assembly, Consisting Of At Least Five Parts., I, , Practical Significance, To create solid models of any mechanical components. To learn different sketching, and modeling commands. Also understand datum features and datum plane theory., Study different geometric and modeling constraints. From design engineers point of, view, can be seen the object from various directions and in various views. It helps to, be sure that the object looks exactly as wanted. It also gives additional vision as to, what more changes can be done in the object., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills –,  Starting and creating new parts.,  Controlling the display of datum features datum plane theory.,  Sweep and Helical Sweep.,  Concept of Trajectory., , IV, , Relevant Course Outcome(s),  Generate 3D models from 2D sketches using Part workbench of any parametric, Modeling software., , V, , Practical Outcome, Operate available modeling software to draw 3D Models of any engineering, , product., , VI, , Relative Affective Domain Demonstrate working as a leader/a team member.,  Follow ethical Practices., , 119

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Solid Modelling and Additive Manufacturing (22053), , VII, , Minimum Theoretical Background,  Basic knowledge of reading of 3D objects.,  Knowledge of creating working directory.,  Basic knowledge of preparation of 2D sketches.,  Basic knowledge of computer handling.,  Basic knowledge of geometric and dimensional constructions., , VIII, , Resources Required, S., No., , Suggested Broad Specification, , Quantity, As per, batch, size, , Operating system, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3., , Software, , Any parametric solid modeling, software., , 4., , Plotter, , Plotter A2 OR A3Size., , 1., , 2., , Name of Resource, Hardware: Personal, computer., , As per, batch, size, As per, batch, size, 1, , IX, , Precautions to be Followed, 1. Student should understand and can visualize at least two Orthographic views of, any model., 2. While constructing 2D sketch, boundary (Area) of any profile should be enclosed., 3. While specifying dimensions, carefully select the entity or end points of entity and, click the middle button (roller) of mouse., 4. Check given drawing for dimensional printing mistakes if any and if dimensions, are missing assume proportionate dimensions., 5. While using Sweep or Helical sweep command, need to draw reference axis,, reference line, trajectory and helical sweep section. These activity should do, carefully., 6. While constructing the drawing, periodically save your work., , X, , Procedure, For Setting the Working Directory and Selection of Sketching Plane (Step 1 & Step 2):, Follow the steps as explained in Previous Practical’s., Step 3: Create a sketch to define the shape of Cup of the Screw Jack., 1. Draw a Centerline, by pickingfrom ‘Datum’ group. Place the centerline by, picking two co-linear points as shown in Figure., , 120

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Solid Modelling and Additive Manufacturing (22053), , Construction of centerline, , 2. Create a profile shown in the Figure with the help of Line chain, command from sketching group., , Line Dashboard, , Viewof Cup., , Profileof Cup., , 121

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Solid Modelling and Additive Manufacturing (22053), , 4. Create and Edit the dimensions by using Normal, , from Dimension group., , Dashboard of Normal Dimension., , 5. Click OK, from the Close group of the Sketch tab to complete the sketch, and return to the Revolve / Extrude dashboard., , Dashboard of Accept., , 6. Then click on Revolve, centerline., , command from Shapes group then select axis /, , Revolved Feature - creates features that add or remove material by revolving one or, more profiles around a centerline. The feature can be a solid, a thin feature, or a, surface., , Dashboard of Revolve command., 122

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Solid Modelling and Additive Manufacturing (22053), , Axis of revolution for Screw Jack Cup., , 7. Take revolution angle as 360 and click on Accept, , button., , Angle of rotation and Accept Dashboard., We will get Screw Jack Cup as shown in the Figure., , Modelof Screw Jack Cup without Slots., 8. Create a Semicircular Slots., i) Go to Sketch menu., ii) Set a line reference by clicking Setup group > References and select the edge, as shown in the Figure [Line (Reference)], , 123

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Solid Modelling and Additive Manufacturing (22053), , References Dashboard., iii), , Draw circle of diameter 10mm at the intersecting point of reference lines., , Circular Sketch for Semicircular Slot., iv), , Click OK, from the Close group of the Sketch tab to complete the sketch, and return to the Extrude dashboard., , v), , Click on ‘Extrude from sketch plane by a specified depth value’ feature., , (a)– Extrude Dashboard., OR click on ‘Extrude on both sides of sketch plane by half the specified depth, value in each direction’ feature., , (b)– Extrude Dashboard., , 124

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Solid Modelling and Additive Manufacturing (22053), , vi), vii), , Drag the reference handles and set the diameter of the hole and its depth, in the, dashboard., Then click on ‘Remove Material’ feature., , Remove material Dashboard., viii), , Then click Accept, , to finish the feature creation., , Accept Dashboard., , Completed Slot feature., ix), , By selecting another reference plane, follow the above procedure to, createotherSemicircular Slot as shown in the Figure., , Completed Screw Jack Cup with Semicircular Slots., 125

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Solid Modelling and Additive Manufacturing (22053), , 9. Saving your work, • In the Quick Access toolbar, click Save, , to save your model., , • In the Save Object dialog, click OK to specify that the model will be saved to your, working directory., Step 4: Create a sketch to define the shape of Washer of the Screw Jack., 1. Draw a Centerline, by picking from ‘Datum’ group. Place the centerline, by picking two co-linear points as shown in Figure., , Construction of centerline, 2. Create a profile shown in the Figure with the help of Line chain, command from sketching group., , Line Dashboard., , 126

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Solid Modelling and Additive Manufacturing (22053), , View of Screw Jack Washer., , Profile of Screw Jack Washer without Fillet., , 3. Create and Edit the dimensions by using Normal, , from Dimension group., , Dashboard of Normal Dimension., , 4. Click OK, from the Close group of the Sketch tab to complete the sketch, and return to the Revolve / Extrude dashboard., , 127

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Solid Modelling and Additive Manufacturing (22053), , Dashboard of Accept., , 5. Then click on Revolve, centerline., , command from Shapes group then select axis /, , Revolved Feature - creates features that add or remove material by revolving one or, more profiles around a centerline. The feature can be a solid, a thin feature, or a, surface., , Dashboard of Revolve command., , Axis of revolution for Screw Jack Washer., We will get Screw Jack Washer as shown in the Figure., , 128

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Solid Modelling and Additive Manufacturing (22053), , Model of Screw Jack Washer without Fillets., , 6. Then provide the fillet with the help of Round, command from, Engineering group at the corner / edge and specify respective radius., Specify the proportionate value of radius, as it is not given in the sketch., , Round Dashboard., , Radius Dashboard., , 129

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Solid Modelling and Additive Manufacturing (22053), , Washer of Screw Jack with fillet., 7. Click OK, , to complete the Fillet., , We will get final shape of Screw Jack Nut with Fillets as shown in the Figure., , Washer of Screw Jack with fillet., 8. Saving your work, , , In the Quick Access toolbar, click Save, , , , In the Save Object dialog, click OK to specify that the model will be saved to your, working directory., , to save your model., , Step 5: Create a sketch to define the shape of Screw of the Screw Jack., , 1. Draw a Centerline, by picking from ‘Datum’ group. Place the centerline, by picking two co-linear points as shown in Figure., , 130

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Solid Modelling and Additive Manufacturing (22053), , Construction of centerline, , 2. Create a profile shown in the Figure with the help of Line chain, command from sketching group., , Line Dashboard., , View of Screw of Screw Jack., , 131

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Solid Modelling and Additive Manufacturing (22053), , Profile of Screw., , 3. Create and Edit the dimensions by using Normal, , from Dimension group., , Dashboard Normal Dimension., , 4. Click OK, from the Close group of the Sketch tab to complete the sketch and, return to the Revolve / Extrude dashboard., , Dashboard for Accept / OK Tool, , 5. Then click on Revolve, centerline., , command from Shapes group then select axis /, 132

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Solid Modelling and Additive Manufacturing (22053), , Revolved Feature - creates features that add or remove material by revolving one or, more profiles around a centerline. The feature can be a solid, a thin feature, or a surface., , Dashboard for Revolve command., , Axis of revolution for Screw Profile., We will get Screw as shown in the Figure., , Model of Screw without Slot & Chamfer., , 133

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Solid Modelling and Additive Manufacturing (22053), , 6. To create rectangular slot at the top surface of the screw., (i), Select the surface as a sketching plane shown in the Figure and then click on, the Sketching toolbar., , Selected surface for creating slot., (ii), , Click on the Center Rectangle icon as shown in Figure to activate the, Rectangle command., , Dashboard for Rectangle command., (iii), , Create a rectangle by clicking Point (1) as center point of rectangle and point, (2) as upper right corner of rectangle as shown below., , (iv), , Create and Edit the dimensions by using Normal, group. Edit width as 2 mm., , from Dimension, , Creation of Rectangular feature., 134

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Solid Modelling and Additive Manufacturing (22053), , Dashboard of Normal Dimension., , Dimension Edition, , (v), , Then click on Accept, buttonfrom the Close group of the Sketch tab to, complete the sketch and return to the Extrude dashboard., , (vi), , Click on ‘Extrude command then specify depth value as 3mm., , Dashboard for dimension edition., (vii), , Then click on ‘Remove Material’ feature., , Dashboard for Material Removal., , (viii), , To complete the feature clickOK/ Accept, , button shown below., 135

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Solid Modelling and Additive Manufacturing (22053), , Rectangular Slot Feature, , Dashboard for Accept button., We will get the screw with rectangular slot as shown below., , Screw with Rectangular slot., , 7. To create Chamfer at bottom circular edge., (i), , Click on the Chamfer command from engineering group as shown below., , 136

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Solid Modelling and Additive Manufacturing (22053), , Dashboard for Chamfer command., (ii), , Select the edge as shown in the Figure and provide the chamfer value as 1mm., , Dashboard for Dimension edition., , Selection of edge for chamfering., , (iii), , To complete the feature click OK / Accept, , button shown below., , Dashboard for Accept button., , 137

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Solid Modelling and Additive Manufacturing (22053), , We will get completed Solid Screw with Slot and Chamfer as shown in the Figure., , Screw with Rectangular Slot and Chamfer, , 8. Create Threads on Screw, i), ii), , Go to Sketch menu., Set a reference by clicking Setup group > References and select left side edge, as a reference., , Reference Dashboard., iii), iv), , v), , Draw Trajectory by using line command on earlier created reference i.e. on one, side of screw surface., Then draw geometrical centerline at the axis of screw by using centerline, command from datum group., Then click Accept, , button., , 138

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Solid Modelling and Additive Manufacturing (22053), , vi), , By taking Helical Sweep Command, draw section of screw thread (i.e. Sweep, Section – V shape) at the End Point of the Trajectory / Line, by using line, command considering pitch of screw thread as 1.25mm., , Helical Sweep Dashboard, , Pitch of Screw Dashboard., , V shape Thread section., , vii), , After creating a sweep section (V shape) click on Accept, , button., , 139

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Solid Modelling and Additive Manufacturing (22053), , Completed Screw with All features., 9. Saving your work, , , In the Quick Access toolbar, click Save, , , , In the Save Object dialog, click OK to specify that the model will be saved to your, working directory., , to save your model., , Step 6: Create a sketch to define the shape of Tommy Bar of the Screw Jack., , by picking from ‘Datum’ group. Place the centerline, 1. Draw a Centerline, by picking two co-linear points as shown in Figure., , Construction of centerline, , 140

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Solid Modelling and Additive Manufacturing (22053), , 2. Create a profile shown in the Figure with the help of Line chain, command from sketching group., , Line Dashboard., , View of Tommy Bar of Screw Jack., , Profile of Tommy Bar of Screw Jack without rounds at the end., 3., , Create and Edit the dimensions by using Normal, , from Dimension group., , Dashboard of Normal Dimension., 141

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Solid Modelling and Additive Manufacturing (22053), , 4. Click OK, from the Close group of the Sketch tab to complete the sketch and, return to the Revolve / Extrude dashboard., , Dashboard of Accept., , 5. Then click on Revolve, centerline., , command from Shapes group then select axis /, , Revolved Feature - creates features that add or remove material by revolving one or, more profiles around a centerline. The feature can be a solid, a thin feature, or a surface., , Dashboard of Revolve command., , Axis of revolution for Tommy Bar., , 6. Take revolution angle as 360. And click on Accept, , button., , 142

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Solid Modelling and Additive Manufacturing (22053), , Angle of rotation and Accept Dashboard., We will get Tommy Bar as shown in the Figure., , Model of Tommy Bar without Rounds., , 7. Then provide the fillets / rounds with the help of Round, command, from Engineering group at required corners / edges and specify respective radius., , Round command dashboard., 8. Specify the radius of round as 10mm. after specifying the value of radius click on, Accept button., , 143

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Solid Modelling and Additive Manufacturing (22053), , Radius dashboard., 9. Specify the radius of round at other end as 6mm. After specifying the value of radius, click on Accept button., , (b), , Radius dashboard., We will get final shape of Tommy Bar with Rounds as shown in the Figure., , Tommy Bar of Screw Jack with Rounds., 10. Saving your work, , , In the Quick Access toolbar, click Save, , , , In the Save Object dialog, click OK to specify that the model will be saved to your, working directory., , to save your model., , XVI. Resources Used, S., No., 1., , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., 3., XVII. Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 144

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Solid Modelling and Additive Manufacturing (22053), , XVIII. Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XIX., , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Explain the procedure to construct a Center Rectangle., 2. Explain the Chamfering procedure., , [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 145

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, XX., , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=XlsaSe444AE, 2. https://www.youtube.com/watch?v=b6b9FY14PKw, 3. https://www.youtube.com/watch?v=X0AMdUMNsDI, , XXI. Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 146

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Solid Modelling and Additive Manufacturing (22053), , Practical No.9: Assemble and Print the orthographic views of the, assembly developed in PrO 5 to 8 with bill of materials., I., , Practical Significance, To create a 3D feature assemblies of relative components. Just as you can combine, features into parts, you can also combine parts into assemblies. Any Modeling, Parametric CAD Software enables you to place component parts and subassemblies, together to form assemblies. It also helps you modify, analyze, or reorient the resulting, assemblies. Such a virtual designed models and assemblies can be used to easily, visualize and evaluate your design before costly prototypes are manufactured., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency –,  Create new Modeling Parametric assembly.,  Assemble the components of an assembly using the Default constraint.,  Assembly constraints – Automatic, fully constrained., , IV, , Relevant Course Outcome(s),  Prepare assemblies of part models using assembly workbench of any parametric, CAD software., , V, , Practical Outcome,  Use any available parametric CAD modeling software to draw and assemble the, different parts at their respective working position for engineering products., , VI, , Relative Affective Domain Demonstrate working as a leader/a team member.,  Follow ethical Practices., , VII, , Minimum Theoretical Background,  Methods for Assembly.,  3-D Dragger.,  Position and relationship in between the parts to be assembled., 147

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Solid Modelling and Additive Manufacturing (22053), , , , , , Bill of materials., Basic knowledge of geometric constructions., Constrain Components., , Methods of Assembly, There are two main approaches of assembly in CAD modeling software –, 1. Bottom-up Assembly., 2. Top-down Assembly., The bottom-up approach is the traditional approach. In bottom-up assembly,, designing / modeling of parts done separately and then call them in assembly, environment and apply constraints for them., In top-down assembly,designing / modeling and assembly of the parts are done in, assembly environment itself and no need to constrain top down assembly parts., 3-D Dragger : The color coded 3-D dragger is used to orient the component being assembled within, the assembly. As constraints are added and the degrees of freedom are reduced, you will, notice that those corresponding portions of the dragger are grayed out.,  The shaded arcs of the dragger control rotation about the three axes.,  The shaded arrows translate the component along those axes.,  These small translucent (shining) quadrants move the component in a 2-D plane.,  The small sphere at the center is used to pan the component in any direction., , 3D-Dragger., Operation, , Keyboard and Mouse Selection, , Spin – The component will spin within, the assembly. Partially constrained, components only spin in unconstrained, directions., Pan – The component will pan about the, assembly., Partially, constrained, components only spin in unconstrained, directions., Component Drag – The component will, spin and pan about the assembly., Partially constrained components can be, dragged, only, in, unconstrained, directions., , 148

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Solid Modelling and Additive Manufacturing (22053), , Constrain Components, After you have placed and oriented a component it is important that you add assembly, constraints to define its final design position., , , A Coincident, constraint is applied to cylindrical surface of each part. This, constraint type makes the center axis of each model coincident., , , , A second Coincident, constraint is applied to datum planes FRONT of each, model. Making the two planes coincident., , , , Constraints such as Coincident, , Parallel, , Distance, and so on, can be explicitly selected from the constraint drop-down menu in the dashboard under, Automatic, however, it is often easier to let Solid Modeling Parametric select them, based on the references you select. In this case, selecting the two cylindrical surfaces, caused a Coincident, , constraint to be automatically applied. If the planes were, , farther apart when selected, a Distance, VIII, , Resources Required, S., No., , Name of Resource, , Suggested Broad Specification, , Quantity, , Hardware: Personal, computer., , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., , Operating system, , Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3., , Software, , Any parametric solid modeling, software., , 4., , Plotter, , Plotter A2 OR A3Size., , As per, batch, size, As per, batch, size, As per, batch, size, 1, , 1., , 2., , IX, , constraint may have been applied., , Precautions to be Followed, 1. Units used while designing the individual models and units used while assembly, should same. (eg. mm or inch)., 2. While assembling first part (base part), assemble the first component at default, constraint location., 3. Each and every part, which are get assembled at respective working position, should fully constrained., , 149

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Solid Modelling and Additive Manufacturing (22053), , X, , Procedure, Step 1: Set working directory and create a new assembly, 1. Start Solid Modeling Parametric., 2. Set the working directory as explained in earlier practical’s., 3. Creating the new assembly model:,  From the Quick Access toolbar or Home tab, click New.,  In the New dialog box, click to select Type as Assemblyand Sub-type as, Design as the new model type.,  Type Assembly_of_Screw_Jack in the Name field, uncheck the ‘Use default, template’ and click OK., , New dialog box., , , A ‘New File Options’ dialog box will pop up, from this dialog box select, ‘mmns_asm_design’ OR ‘mmks_asm_design’ option and click OK., , New File Options dialog box., , 150

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Solid Modelling and Additive Manufacturing (22053), , Assembly Environment., , 151

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Solid Modelling and Additive Manufacturing (22053), , Step 2: Adding the first component to the assembly, 1. Selecting the component to assemble:, , , , , , , Click ‘Assemble’, tool from Component group of Model tab., In the lower-right corner of the Open dialog box, click to expand the Preview, pane., Browse the location where you have saved Screw Jack Body model and select, it., Click Open to assemble this component., , Calling of First object i.e. Screw Jack Body., , , The part will be attached to the cursor and the Assembly dashboard will open., , Assembly dashboard., Locating the part temporarily, before final placement:, Drag the Screw Jack Body just to the left of the assembly coordinate system, and then click in, the graphics area to place it. Later, when placing components, you will use the 3D Dragger to, position the component close to its final destination., , 152

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Solid Modelling and Additive Manufacturing (22053), , Location of part before final placement., 2. Adding assembly constraints:, , , In the Assembly dashboard, click Automatic and select, Default from the drop-down menu., , Default location., The Screw Jack model is now constrained to the default center of the graphics area,, where the assembly coordinate system is located., , 153

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Solid Modelling and Additive Manufacturing (22053), , Screw Jack body constrained to default center., Components change to a yellow-orangecolor after they have been fully constrained., The Assembly dashboard shows the Default constraint type message confirms the part, is Fully Constrained., , Default and Fully Constrained dashboard., 3. Complete the placement of the part:, , , In the Assembly dashboard, click Complete Component, the component placement., , to complete, , Placement of Base component (body)., , 154

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Solid Modelling and Additive Manufacturing (22053), , 4. Click Save, , to save your work., , 5. Change the display of datum features:,  In the Graphics toolbar, disable the display of, Point display and Plane display.,  Default coordinate system and axis display, should be displayed at the center., , Datum features with Base component., Step 3: Add the Second component (Nut) to the assembly, 1. Selecting the Second part to assemble:, , , , , , , Click ‘Assemble’, tool from Component group of Model tab., In the lower-right corner of the Open dialog box, click to expand the Preview, pane., Browse the location where you have saved Nut model and select it., Click Open to assemble this component., , , , Calling of Second object i.e. Nut., The part will be attached to the cursor and the Assembly dashboard will open., , 155

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Solid Modelling and Additive Manufacturing (22053), , Nut with base component (body)., , Automatic and No Constraints dashboard., 2. Locating the part temporarily, before final placement:,  Drag the Nut to a position just to the right of the Body, and then click in the, graphics area to place it., 3. Adding the first assembly constraint:,  Move the cursor over the axis of Nut till it shows the cursor tip as shown atX1., , First Assembly Constraint i.e. Axis of Nut., , , , , When the cursor shows cursor tip shown at X1, click to select the axis. Then it, displays Automatic., , Selection of First Assembly Constraint i.e. Axis of Nut., Move the cursor over the axis of the body till it shows the cursor tip as shown at, X2. Then click to select the axis of body., , 156

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Solid Modelling and Additive Manufacturing (22053), , , , Second Assembly Constraint i.e. Axis of Body., Then select the Coincident constraint from the Component Placement >, Constraint dashboard., , , , Application of Coincident Constraint., If required drag and click on Flip Axis Constraint from the Placement tab in, order to flip the orientation of a constraint., , Before Flip Axis Constraint., , After Flip Axis Constraint., 157

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Solid Modelling and Additive Manufacturing (22053), , , , Then drag the Nut towards upper side of the body., , 4. Adding the second assembly constraint:,  Press the middle-mouse button and drag to spin the model until you can see the flat, surface of body shown as X1.,  Click to select the flat surface of the Body(X1) that it closest to and facing the, surface of Nut X2., , , , Second Assembly Constraint i.e. Surface of Body (X1)., Press the middle-mouse button and drag to spin the model until you can see the flat, surface shown as X2 of the Nut., , Selection of Second Assembly Constraint i.e. Surface of Nut (X2)., , , , Click to select the flat surface of Nut shown as X2., Then from Constrained dashboard select coincident constraint., , Selection of Coincident Constraint., 158

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Solid Modelling and Additive Manufacturing (22053), , , , , , , Solid Modeling Parametric recognizes two flat surfaces facing each other and, applies a Coincident constraint. These two selected surface are now coincident to, each other., , Coincident both the parts., The Nut has changed to a yellow-orange color indicating that its position is fully, constrained., The Assembly dashboard shows the Coincident constraint type was the last used, and that the Nut is now Fully Constrained., , Coincident Assembly constraint with Fully Constrained dashboard., , , , Click Complete Component, to complete the component placement., Then the Nut returns to its original gray color., , 5. Reorienting and saving your work:,  Press CTRL + D to reorient the model., , , Click Save, , to save your work., , Reoriented body and nut assembly., Step 3: Adding the Next component to the assembly (i.e. Screw Spindle), 1. Selecting the Next part to assemble:, , 159

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Solid Modelling and Additive Manufacturing (22053), , , , , , , Click ‘Assemble’, tool from Component group of Model tab., In the lower-right corner of the Open dialog box, click to expand the Preview, pane., Browse the location where you have savedScrew Spindle model and select it., Click Open to assemble this component., , , , Calling of Next object i.e. Screw Spindle., The part will be attached to the cursor and the Assembly dashboard will open., , Screw Spindle with body and nut., , Automatic and No Constraints dashboard., 2. Locating the part temporarily, before final placement:,  Drag the Screw Spindle to a position just to the right of the Assembly, and, then click in the graphics area to place it., , 160

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Solid Modelling and Additive Manufacturing (22053), , Screw Spindle towards right side of assembly., 3. Adding the first assembly constraint:,  Move the cursor over the axis of Screw Spindle till it shows the cursor tip as, shown at X1., , , , First Assembly Constraint i.e. Axis of Screw Spindle., When the cursor shows cursor tip shown at X1, click to select the axis. Then it, displays Automatic., , , , Selection of First Assembly Constraint i.e. Screw Spindle., Move the cursor over the axis of the body till it shows the cursor tip as shown at, X2. Then click to select the axis of body., , 161

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Solid Modelling and Additive Manufacturing (22053), , Second Assembly Constraint i.e. Axis of Body., , , Then select the Coincident constraint from the Component Placement >, Constraint dashboard., , Before Application of Coincident Constraint., , After Application of Coincident Constraint., , , , If required click on Flip Axis Constraint from the Placement tab in order to flip, the orientation of a constraint., Then drag the Screw Spindle towards upper side of the Assembly., , 162

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Solid Modelling and Additive Manufacturing (22053), , Dragging of Screw Spindle along the constrained axes., 4. Adding the second assembly constraint:,  If required press the middle-mouse button and drag to spin the model until you can, see the flat surface shown as X1 on the Nut.,  Click to select the flat surface of the Nut(X1) that it closest to and facing the, surface of Screw Spindle(X2)., , Second Assembly Constraint i.e. Surface of Nut (X1)., , , Press the middle-mouse button and drag to spin and zoom the model until you can, see the flat surface shown as X2 of the Screw Spindle., , Selection of Second Assembly Constraint i.e. Surface of Screw Spindle (X2)., 163

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Solid Modelling and Additive Manufacturing (22053), , , , , , , , , Click to select the flat surface of Screw Spindle shown as X2., If required, then from Constrained dashboard select coincident constraint., , Coincident both the parts., Solid Modeling Parametric recognizes two flat surfaces facing each other and, applies a Coincident constraint. These two selected surface are now coincident to, each other., The Screw Spindle has changed to a yellow-orange color indicating that its, position is fully constrained., The Assembly dashboard shows the Coincident constraint type was the last used, and that the Screw Spindle is now Fully Constrained., , Coincident Assembly constraint with Fully Constrained dashboard.,  Click Complete Component, to complete the component placement.,  Then the Screw Spindle returns to its original gray color., 5. Reorienting and saving your work:,  Press CTRL + D to reorient the model., , , Click Save, , to save your work., , Reoriented Assembly., 164

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Solid Modelling and Additive Manufacturing (22053), , XI, , Resources Used, , S., Name of, No. Resource, 1., , Make, , Broad Specifications, Details, , Quantity Remarks, (If any), , 2., 3., , XII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XV, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Create models of individual components and Assemble any one of the following, assembly – Bench vice ,Drill Jig., 2. List different assembly constraints., , [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 165

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, XVI, , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=xzteh5MFDs4, 2. https://www.youtube.com/watch?v=Yp2SbrxhfNQ, 3. https://www.youtube.com/watch?v=nbhQTShOS0o, 4. https://www.youtube.com/watch?v=mFNZHaQYw60, , XVII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 167

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Solid Modelling and Additive Manufacturing (22053), , Practical No.10: Assemble and Print the orthographic views of the assembly, developed in PrO 5 to 8 with bill of materials., ------------------- Continued From Previous Practical –, Step 4: Adding the Next component to the assembly (i.e. Tommy bar), 1., , Selecting the Next part to assemble:, , , , , , , Click ‘Assemble’, tool from Component group of Model tab., In the lower-right corner of the Open dialog box, click to expand the Preview, pane., Browse the location where you have savedTommy bar model and select it., Click Open to assemble this component., , , , Calling of Next object i.e. Tommy bar., The part will be attached to the cursor and the Assembly dashboard will open., , Tommy bar with Assembly., , Automatic and No Constraints dashboard., 2., , Locating the part temporarily, before final placement:, , 168

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Solid Modelling and Additive Manufacturing (22053), , , , Drag the Tommy bar to a position just to the right of the Assembly, and then, click in the graphics area to place it., , Tommy bar towards right side of assembly., 3., Adding the first assembly constraint:,  Move the cursor over the axis of Tommy bar till it shows the cursor tip as shown at, X1., , , , First Assembly Constraint (X1) i.e. Axis of Tommy bar., When the cursor shows cursor tip shown at X1, click to select the axis. Then it, displays Automatic., , Selection of First Assembly Constraint (X1) i.e. Axis of Tommy bar., , , Move the cursor over the axis of the Screw Spindle till it shows the cursor tip as, shown at X2. Then click to select the axis of Screw Spindle., , 169

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Solid Modelling and Additive Manufacturing (22053), , Second Assembly Constraint (X2) i.e. Axis of Screw Spindle., , , , , Then if required, select the Coincident constraint from the Component, Placement > Constraint dashboard., If required click on Flip Axis Constraint from the Placement tab in order to flip, the orientation of a constraint., Then if required, drag the Tommy bar towards the hole of screw spindle., , 4. Adding the second assembly constraint:, , , , If required press the middle-mouse button and drag to spin the model until you can, see the flat surface shown as X1 on the Tommy bar., Click to select the flat surface of the Tommy bar(X1) that it closest to and facing, the surface of Screw Spindlehole (X2)., , , , Second Assembly Constraint i.e. Surface of Tommy bar (X1)., Press the middle-mouse button and drag to spin and zoom the model until you can, see the flat surface shown as X2 of the Screw Spindle hole., , Selection of Second Assembly Constraint i.e. Surface of Screw Spindle hole (X2)., , , , Click to select the flat surface of Screw Spindle hole shown as X2., If required, then from Constrained dashboard select coincident constraint., 170

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Solid Modelling and Additive Manufacturing (22053), , , , Solid Modeling Parametric recognizes two cylindrical surfaces facing each other, and applies a Coincident constraint. These two selected surface are now coincident, to each other., , , , , Click Complete Component, to complete the component placement., Then the Tommy bar returns to its original gray color., , 5. Reorienting and saving your work:,  Press CTRL + D to reorient the model., , , Click Save, , to save your work., , Reoriented Assembly., Step 5: Adding the Next component to the assembly (i.e. Cup), 1. Selecting the Next part to assemble:, , , , , , , Click ‘Assemble’, tool from Component group of Model tab., In the lower-right corner of the Open dialog box, click to expand the Preview, pane., Browse the location where you have savedCup model and select it., Click Open to assemble this component., , Calling of Next object i.e. Cup., , , The part will be attached to the cursor and the Assembly dashboard will open., 171

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Solid Modelling and Additive Manufacturing (22053), , Cup with Assembly., , Automatic and No Constraints dashboard., 2. Locating the part temporarily, before final placement:,  Drag the Cup to a position just to the top of the Assembly, and then click in, the graphics area to place it., , Cup towards Top side of assembly., 3. Adding the first assembly constraint:,  Move the cursor over the axis of Cup till it shows the cursor tip as shown at X1., , First Assembly Constraint (X1) i.e. Axis of Cup., , 172

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Solid Modelling and Additive Manufacturing (22053), , , , Then the cursor shows cursor tip shown at X1, click to select the axis. Then it, displays Automatic., , Selection of First Assembly Constraint (X1) i.e. Axis of Cup., , , Move the cursor over the axis of the Screw Spindle till it shows the cursor tip as, shown at X2. Then click to select the axis of the Screw Spindle., , Second Assembly Constraint (X2) i.e. Axis of Screw Spindle., , , Then select the Coincident constraint from the Component Placement >, Constraint dashboard., , Before Application of Coincident Constraint., , 173

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Solid Modelling and Additive Manufacturing (22053), , , , , After Application of Coincident Constraint., If required click on Flip Axis Constraint from the Placement tab in order to flip, the orientation of a constraint., Then drag the Cup towards upper side of the Assembly., , Dragging of Cup along the constrained axes., 4. Adding the second assembly constraint:,  If required press the middle-mouse button and drag to spin the model until you can, see the flat surface shown as X1 on the Screw Spindle.,  Click to select the flat surface of the Screw Spindle (X1) that it closest to and, facing the surface of Cup(X2)., , Second Assembly Constraint i.e. Surface of Screw Spindle (X1)., 174

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Solid Modelling and Additive Manufacturing (22053), , , , Press the middle-mouse button and drag to spin and zoom the model until you can, see the flat surface shown as X2 of the Cup., , Selection of Second Assembly Constraint i.e. Surface of Cup (X2)., , , , Click to select the flat surface of Cup shown as X2., If required, then from Constrained dashboard select coincident constraint., , Coincident both the parts., , , , , Solid Modeling Parametric recognizes two flat surfaces facing each other and, applies a Coincident constraint. These two selected surface are now coincident to, each other., The Cup has changed to a yellow-orange color indicating that its position is fully, constrained., The Assembly dashboard shows the Coincident constraint type was the last used, and that the Cup is now Fully Constrained., , Coincident Assembly constraint with Fully Constrained dashboard., , 175

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Solid Modelling and Additive Manufacturing (22053), , , , , Click Complete Component, to complete the component placement., Then the Cup returns to its original gray color., , 5. Reorienting and saving your work:,  Press CTRL + D to reorient the model., , , Click Save, , to save your work., , Reoriented Assembly., Step 6: Adding the Next component to the assembly (i.e. Washer), 1., Selecting the Next part to assemble:, , , , , , , Click ‘Assemble’, tool from Component group of Model tab., In the lower-right corner of the Open dialog box, click to expand the Preview, pane., Browse the location where you have saved Washer model and select it., Click Open to assemble this component., , , , Calling of Next object i.e. Washer., The part will be attached to the cursor and the Assembly dashboard will open., , 176

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Solid Modelling and Additive Manufacturing (22053), , Washer with Assembly., , Automatic and No Constraints dashboard., 2. Locating the part temporarily, before final placement:,  Drag and zoom the Washer to a position just to the top of the Assembly, and, then click in the graphics area to place it., , Washer towards Top side of assembly., 3. Adding the first assembly constraint:,  Zoom and move the cursor over the axis of Washer till it shows the cursor tip, as shown at X1., , First Assembly Constraint (X1) i.e. Axis of Washer., 177

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Solid Modelling and Additive Manufacturing (22053), , , , When the cursor shows cursor tip shown at X1, click to select the axis., Then it displays Automatic., , Selection of First Assembly Constraint (X1) i.e. Axis of Washer., , , Move the cursor over the axis of the Cup till it shows the cursor tip as, shown at X2. Then click to select the axis of the Cup., , Second Assembly Constraint (X2) i.e. Axis of Cup.,  Then select the Coincident constraint from the Component Placement >, Constraint dashboard., , Before Application of Coincident Constraint., , 178

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Solid Modelling and Additive Manufacturing (22053), , , , , After Application of Coincident Constraint., If required click on Flip Axis Constraint from the Placement tab in order to, flip the orientation of a constraint., Then drag the washer towards upper side of the Assembly., , 4. Adding the second assembly constraint:,  If required press the middle-mouse button and drag to spin the model until you, can see the flat surface shown as X1 on the Cup base.,  Click to select the flat surface of the Cup base (X1) that it closest to and facing, the surface of Washer(X2)., , Second Assembly Constraint i.e. Surface of Washer (X1)., , , Press the middle-mouse button and drag to spin and zoom the model until you, can see the flat surface shown as X2 of the Washer., , 179

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Solid Modelling and Additive Manufacturing (22053), , Selection of Second Assembly Constraint i.e. Surface of Washer (X2).,  Click to select the flat surface of Washer shown as X2.,  Then from Constrained dashboard select coincident constraint., , Coincident constraints of both the parts., , Coincident both the parts.,  Solid Modeling Parametric recognizes two flat surfaces facing each other and, applies a Coincident constraint. These two selected surface are now coincident, to each other., 180

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Solid Modelling and Additive Manufacturing (22053), , , , , The Washer has changed to a yellow-orange color indicating that its position, is fully constrained., The Assembly dashboard shows the Coincident constraint type was the last, used and that the Washer is now Fully Constrained., , Coincident Assembly constraint with Fully Constrained dashboard., , , , Click Complete Component, to complete the component placement., Then the Washer returns to its original gray color., , 5. Reorienting and saving your work:,  Press CTRL + D to reorient the model., , , Click Save, , to save your work., , Reoriented Assembly., Step 7: Adding the Next component to the assembly (i.e. Screw), 1. Selecting the Next part to assemble:, , , , , , , Click ‘Assemble’, tool from Component group of Model tab., In the lower-right corner of the Open dialog box, click to expand the Preview, pane., Browse the location where you have savedScrew model and select it., Click Open to assemble this component., , 181

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Solid Modelling and Additive Manufacturing (22053), , , , Calling of Next object i.e. Screw., The part will be attached to the cursor and the Assembly dashboard will open., , Screw with Assembly., , Automatic and No Constraints dashboard., 2. Locating the part temporarily, before final placement:,  Drag and zoom the Screw to a position just to the top of the Assembly, and, then click in the graphics area to place it., , Screw towards Top side of assembly., 182

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Solid Modelling and Additive Manufacturing (22053), , 3. Adding the first assembly constraint:,  Zoom and move the cursor over the axis of Screw till it shows the cursor tip as, shown at X1., , First Assembly Constraint (X1) i.e. Axis of Screw., , , , , When the cursor shows cursor tip shown at X1, click to select the axis. Then it, displays Automatic., , Selection of First Assembly Constraint (X1) i.e. Axis of Screw., Move the cursor over the axis of the Cup / Washer till it shows the cursor tip as, shown at X2. Then click to select the axis of the Cup / Washer., , Second Assembly Constraint (X2) i.e. Axis of Cup., , , Then select the Coincident constraint from the Component Placement >, Constraint dashboard., , 183

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Solid Modelling and Additive Manufacturing (22053), , Before Application of Coincident Constraint., , , , , After Application of Coincident Constraint., If required click on Flip Axis Constraint from the Placement tab in order to flip, the orientation of a constraint., Then drag the Screw towards upper side of the Assembly., , 4. Adding the second assembly constraint:,  If required press the middle-mouse button and drag to spin and zoom the model, until you can see the head surface of screw shown as X1.,  Click to select the head surface of the screw (X1) that it closest to and parallel to, the surface of Washer(X2)., , 184

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Solid Modelling and Additive Manufacturing (22053), , Second Assembly Constraint i.e. Surface of Screw (X1)., , , Press the middle-mouse button and drag to spin and zoom the model until you can, see the flat surface shown as X2 of the Washer., , Selection of Second Assembly Constraint i.e. flatSurface of Washer (X2)., , , , Click to select the flat surface of Washer shown as X2., Then from Constrained dashboard select coincident constraint., , 185

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Solid Modelling and Additive Manufacturing (22053), , (a) – Coincident both the parts., , (b) – Coincident both the parts., , , , , Solid Modeling Parametric recognizes two flat surfaces facing parallel to each, other and applies a Coincident constraint. These two selected surface are now, coincident to each other., The Washer has changed to a yellow-orange color indicating that its position is, fully constrained., The Assembly dashboard shows the Coincident constraint type was the last used, and that the Screw is now Fully Constrained., , Coincident Assembly constraint with Fully Constrained dashboard., , , , Click Complete Component, to complete the component placement., Then the Screw returns to its original gray color., , 5. Reorienting and saving your work:,  Press CTRL + D to reorient the model., , , Click Save, , to save your work., , 186

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Solid Modelling and Additive Manufacturing (22053), , Reoriented Assembly., XVIII Resources Used, S., No., 1, , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2, 3, XIX, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XX, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XXI, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , 187

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Solid Modelling and Additive Manufacturing (22053), , XXII Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Explain – fully constrained object., 2. Explain different constraint used in assembly with relative sketches., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, , 188

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Solid Modelling and Additive Manufacturing (22053), , XXIII Questions for Practice., 1. Create models of individual components of Tool Post and Assemble it., XXIV References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=xzteh5MFDs4, 2. https://www.youtube.com/watch?v=Yp2SbrxhfNQ, XXV Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 189

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Solid Modelling and Additive Manufacturing (22053), , Practical No.11: Assemble and Print the Orthographic Views of the, Assembly Developed in Pro 5 to 8 With Bill of Materials., I, , Practical Significance, Drawing views provide a means communication between the design engineers and, production personnel. By studying this practical one can automatically create, traditional 2D orthographic and detail views of either a 3D model or an assembly and, one can easily prepare a Bill of Materials., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency –,  Opening an existing assembly / component.,  Starting a new drawing - paper size, template.,  Apply dimensions to the drawing views.,  Preparation of Bill of Material., , IV, , Relevant Course Outcome(s),  Generate orthographic views of 3D solid assemblies using Drawing workbench of, any parametric CAD software.,  Generate production drawing for given part models / assemblies., , V, , Practical Outcome,  Use any available parametric CAD modeling software to create and print, orthographic views of assembly for any engineering products., , VI, , Relative Affective Domain Demonstrate working as a leader/a team member.,  Follow ethical Practices., , VII, , Minimum Theoretical Background,  Knowledge of drawing workbench of CAD modeling software.,  Types and Method of dimensions.,  Basic knowledge of reference projection views., 190

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Solid Modelling and Additive Manufacturing (22053), , VIII, , Resources Required, S., No., , Suggested Broad Specification, , Quantity, As per, batch, size, , Operating system, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3., , Software, , Any parametric solid modeling, software., , 4., , Plotter, , Plotter A2 OR A3Size., , 1., , 2., , Name of Resource, Hardware: Personal, computer., , As per, batch, size, As per, batch, size, 1, , IX, , Precautions to be Followed,  Units used while designing the individual models should be properly selected., , X, , Procedure, Step 1: Set working directory and open assembly, 1. Start Solid Modeling Parametric CAD software., 2. Set the working directory as explained in earlier practical’s., 3. Opening the new assembly model of screw jack:,  From the Quick Access toolbar click on Opentab. The file open dialog box, opens., , , , , File open dialog box., If necessary click on Working Directory in the left panel., Select your assembly-of-screw-jack.asm file and click open., , Step 2: New Engineering Drawing., 1. Starting a new drawing:,  In the Quick Access toolbar, click on to start a new file., , 191

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Solid Modelling and Additive Manufacturing (22053), , , , , , , , , , , , New dialog box., In the New dialog box, click Drawing for the Type and type in Assembly-ofscrew-jack for the Name., Uncheck the Use default template option., Click on OK and New Drawing dialog box opens., A ‘New Drawing’ dialog box will pop up, browse default model as assembly, file., From Specify Template select ‘Empty with format’ option., , New drawing dialog box., Then from Format option browse and select the template as you need (or, paper size you require)., Click OK to create the drawing., Drawing environment with selected template will open., , 192

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Solid Modelling and Additive Manufacturing (22053), , Drawing Environment with Template., , , From LAYOUT Tab select GENERAL from model views., , General view., , Select combined state dialog box., , , , , Just click on OK button from Select Combined State dialog box., Click in the drawing area where you want to insert the General view., Then from Drawing View dialog box, select FRONT as a Model view name., 193

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Solid Modelling and Additive Manufacturing (22053), , , , Click on Apply and then click Close to close drawing view dialog box., , Drawing view., , , , Select generated Front view, then click on Projection from Layout tab., To get Top view click below the Front view., , Projection view., , , Repeat above two steps to get Side view., , Drawing views before hidden display style., , 194

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Solid Modelling and Additive Manufacturing (22053), , , , , , Double click on the generated Front view, we will get the drawing view, dialog box again., From Categories select View Display and select Hidden Display style., Click on Apply and then Close., , Application of hidden display style., , , Repeat the above three steps twice to convert the top view and side view as, Display style Hidden, simultaneously., , Drawing views after hidden display style., 2. Changing the drawing scale:, Automatic obtained drawing views has a size comparatively smaller than that, of the paper size. Therefore increase the scale to match the size of the model, views to the paper size., , , , , Double click on General views (initially inserted) to get open Drawing View, dialog box., From Categories select Scale, then choose Custom scale from Scale and, perspective options., Change the Custom scale as required., 195

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Solid Modelling and Additive Manufacturing (22053), , , , Then click Apply and say OK., , Application of drawing scale., , , , After specifying the suitable scale, we will get the views as shown below., Drawing view displays the Scale factor below the view., , Scaled 3 drawing views., 3. Showing dimensions:, , , , , In the drawing ribbon make sure the Annotate tab is selected., In the graphics window, select the view you want to add dimensions to. The, border of the sketch will turn green showing it is selected., In the Annotate ribbon, click on Show Model Annotations., , 196

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Solid Modelling and Additive Manufacturing (22053), , (a)– Model Annotation., , , , Click on the view you want to add the dimensions., The Show Model Annotations dialog box will open listing all the dimensions, that were used to create the 3D model., , (b)– Model Annotation., These can be checked/ticked individually to make them appear on the drawing in the, select view. Near the bottom of the dialog box is a button to add all the dimensions, , , , Click, , to show all dimensions on the selected view., , The dimensions will appear on the selected view but may or may not be placed, properly. Then place it properly. Delete the dimensions which are not required., OR, , , We can place the dimensions by selecting Dimension – New References tool, and picking individual entities., , 197

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Solid Modelling and Additive Manufacturing (22053), , Dimension – New References, , , Finally generate the Drawing views as shown below., , Assembly drawing views with all aspects., 4. The Bill of Material:, The Bill of Material is a tabular representation of all the components of the, assembly, along with the information associated with them.,  Click on Open to browse and open the Assembly file (i.e., Assembly_of_Screw_Jack.asm)., , 198

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Solid Modelling and Additive Manufacturing (22053), , Assembly for Bill of material., , , , , , Select and click ‘Bill of Materials’ tool from Investigate., , Bill of materials tool., BOM dialog box will display, from this dialog box keep selected Top level, and check Designated Objects., Then click OK button., , Bill of materials dialog box., 199

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Solid Modelling and Additive Manufacturing (22053), , Bill of materials., XI, , Resources Used, , S., No., 1., , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., 3., XII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 200

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Solid Modelling and Additive Manufacturing (22053), , XV, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Explain to generate BOM., 2. Assemble and Print the orthographic views of any one of the following assembly –, Bench vice, Drill Jig, Tool Post., , [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 201

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, XVI, , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=qlXXN872GqA&feature=youtu.be, 2. https://www.youtube.com/watch?v=mBScLZ5yy58, , XVII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 202

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Solid Modelling and Additive Manufacturing (22053), , Practical No.12: Draw and Print the production drawing of all, individual components part models of assembly, developed in PrO 5 to 8., I, , Practical Significance, Drawing and documentation are essential for any product design, because they provide, guidance in the manufacturing of mechanical devices. While creating part model we, might have given various dimensions, geometric constraints, these details are used in, drawing mode directly. Drawing views provide a means communication between the, design engineers and production personnel. By studying this practical one can, automatically create orthographic and detail views of either a 3D model or an, assembly. Also here we can select multiple item types such as Dimension, Axis,, Surface Finish and their options at a time., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency –,  Opening an existing component.,  Creating of General and projection views.,  Apply dimensions to the drawing views., , IV, , Relevant Course Outcome(s),  Generate orthographic views of 3D solid models using Drawing workbench of any, parametric CAD software.,  Generate production drawing for given part models., , V, , Practical Outcome,  Use any available parametric CAD modeling software to create and print, orthographic views of individual models for any engineering products., , VI, , Relative Affective Domain Demonstrate working as a leader/a team member.,  Follow ethical Practices., , 203

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Solid Modelling and Additive Manufacturing (22053), , VII, , Minimum Theoretical Background,  Knowledge of drawing workbench of CAD modeling software.,  Types and Method of dimensions.,  Basic knowledge of reference projection views.,  Dimensional tolerances, tolerances methods and types.,  Geometrical &Dimensional Tolerances (GD&T)., In addition to Dimensional Tolerance, we must show geometric tolerances on a, component for manufacturing. Dimensional tolerances control the size of a component, whereas geometric tolerance controls the shape of the component. The various, parameters shown by Geometric Tolerances are geometric conditions such as surface, finish, perpendicularity, circularity etc., Geometric Dimensioning and Tolerance (GD&T) is a symbolic language which, communicates design intents. Geometric Dimensioning is a geometric characteristic, the size of which is specified such as length, angle, location, or center distance., Geometric Tolerance is the total permissible variation in its size, which is equal to the, difference between the limits of size, it states the maximum allowable variations of a, form or its position from the perfect geometry implied on the drawing. Dimensional, tolerance controls size of a part whereas Geometrical tolerance controls the shape of a, part., It is used to specify the size, shape, form, orientation, and location of features on a, part. And it is basically a very good design tool. To apply GD&T one must have the, parts functionality in an assembly., , VIII, , Resources Required, S., No., , Suggested Broad Specification, , Quantity, As per, batch, size, , Operating system, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3., , Software, , Any parametric solid modeling, software., , 4., , Plotter, , Plotter A2 OR A3Size., , 1., , 2., , IX, , Name of Resource, Hardware: Personal, computer., , As per, batch, size, As per, batch, size, 1, , Precautions to be Followed,  Units used while designing the individual models should be properly selected.,  While taking drawing views, general view should take carefully.,  Care should be taken while applying dimensions, like placement of dimension and, should not repeat the same dimension., , 204

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Solid Modelling and Additive Manufacturing (22053), , X, , Procedure, Step 1: Set working directory and open body part, 1. Start Solid Modeling Parametric CAD software., 2. Set the working directory as explained in earlier practical’s., 3. Opening the new part model body of screw jack:,  From the Quick Access toolbar click on Open tab. The file open dialog box, opens., , File open dialog box.,  If necessary click on Working Directory in the left panel.,  Select your part model body11.prt and click open., Step 2: New Engineering Drawing., 1. Starting a new drawing:,  In the Quick Access toolbar, click on to start a new file.,  In the New dialog box, click Drawing for the Type and enter as Body in Name, field.,  Uncheck the Use default template option.,  Click on OK and New Drawing dialog box opens., , , , , New dialog box., A ‘New Drawing’ dialog box will pop up, browse default model as body file., From Specify Template select ‘Empty with format’ option., , 205

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Solid Modelling and Additive Manufacturing (22053), , New drawing dialog box., , , , , Then from Format option browse and select the template as you need (or, paper size you require)., Click OK to create the drawing., Drawing environment with selected template will open., , , , Drawing Environment with Template., From LAYOUT Tab select GENERAL from model views., , General view., , 206

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Solid Modelling and Additive Manufacturing (22053), , , , , , , Select combined state dialog box., Just click on OK button from Select Combined State dialog box., Click in the drawing area where you want to insert the General view., Then from Drawing View dialog box, select FRONT as a Model view name., Click on Apply and then click Close to close drawing view dialog box., , , , , Drawing view., Select generated Front view, then click on Projection from Layout tab., To get Top view click below the Front view., , , , Projection view., Repeat above two steps to get Side view., , 207

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Solid Modelling and Additive Manufacturing (22053), , Drawing views before hidden display style., , , , , , , Double click on the generated Front view, we will get the drawing view, dialog box again., From Categories select View Display and select Hidden Display style., Click on Apply and then Close., , Application of hidden display style., Repeat the above three steps twice to convert the top view and side view as, Display style Hidden, simultaneously., , 208

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Solid Modelling and Additive Manufacturing (22053), , Drawing views after hidden display style., 3. Changing the drawing scale:, Automatic obtained drawing views has a size comparatively smaller than that, of the paper size. Therefore increase the scale to match the size of the model to, the paper size.,  Double click on General views (initially inserted) to get open Drawing View, dialog box.,  From Categories select Scale, then choose Custom scale from Scale and, perspective options.,  Change the Custom scale as required.,  Then click Apply and say OK., , , , , Application of drawing scale., After specifying the suitable scale, we will get the views as shown below., Drawing view displays the Scale factor below the view., , 209

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Solid Modelling and Additive Manufacturing (22053), , 4. Showing dimensions:,  In the drawing ribbon make sure the Annotate tab is selected.,  In the graphics window, select the view you want to add dimensions to. The, border of the sketch will turn green showing it is selected.,  In the Annotate ribbon, click on Show Model Annotations., , Model Annotation., The Show Model Annotations dialog box will open listing all the dimensions that, were used to create the 3D model.These can be checked/ticked individually to make, them appear on the drawing in the select view. Near the bottom of the dialog box is a, button to add all the dimensions., , , , Click, , to show all dimensions on the selected view., , The dimensions will appear on the selected view but may or may not be placed, properly. Then place it properly. Delete the dimensions which are not required., OR, , , We can place the dimensions by selecting Dimension – New References tool and, picking individual entities., , , , Dimension – New References, Finally generate the Drawing views as shown below., , 210

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Solid Modelling and Additive Manufacturing (22053), , Body part drawing views., 5. Showing the Dimensional Tolerance :,  By default dimensional tolerance are not shown in the drawing. To show dimensional, tolerance on a drawing invoke File>Prepare>Drawing Properties from main menu, bar. It display Model properties dialog box., , Model Properties., , , , From this dialog box select change from Detail Options. Then it displays drawing, configurations file window., Search tol_display option and change its default value NO to YES., , (a)–Tolerance Display Option., , (b)–Tolerance Display Option., , 211

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Solid Modelling and Additive Manufacturing (22053), , , , , To change the display mode of tolerance, double click on a dimension, following, dialog box will be seen., Then from this dialog box select Tolerance>Tolerance Mode>Plus-Minus and say OK., , Three views with dimension properties dialog box., 6. Geometric Dimensions & Tolerances (GD&T) :, , , To add geometric tolerances invoke Annotate>Geometric Tolerances, from, ribbon menu which displays Geometric Tolerance doalog box as shown in Figure., , Geometric Tolerance dialog box., , , Symbol, , , , Tolerance quantity is mentioned in the Tol Value option as shown in Figure. Here, tolerance value is 0.001., In Model Ref. Tab option, select ‘Select Entity’ and clickon the entityof the drawing, to which tolerance to be provide. Select ‘Place Gtol’ tab and then select dimension, from the part., , , , Tolerance is default selected., , 212

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Solid Modelling and Additive Manufacturing (22053), , Selection of Geometric Tolerance., , , , , , ., To add geometric tolerance flatness. Select flatness symbol, Flatness quantity is mentioned in the Tol Value option as shown in Figure. Here, tolerance value is 0.001., In Model Ref. Tab option, select ‘Select Entity’ and clickon the entityof the drawing, to which flatness to be providing. Select ‘Place Gtol’ tab and then select dimension, from the part. Click OK button., Geometric tolerance flatness will appear on respective entity as shown in Figure., , Application of Geometric Tolerance., 7. Surface Finish Symbol :, , , , Invoke Annotate>Surface finish, from ribbon, menu mode., Click Retrieve option and open Generic/Unmachined or machined folder., Here we open Unmachined folder and open standard2.sym. Select, Normal option, then select an entity or an edge or a dimension or a curve, or a point on a surface from drawing views and then enter roughness value, = 34. Then click Check option as shown in Figure., , 213

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Solid Modelling and Additive Manufacturing (22053), , Surface roughness value and symbol., 8. Datum Reference Frames :, We must define datum reference before applying geometric tolerance.,  Create Reference Datum-The reference must be created earlier to apply geometric, tolerances., a) Reference Datum’s are created by clicking Annotate>Model datum>Model, Datum plane, displayed as shown in Figure., , from ribbon menu, a datum dialog box is, , Selection of Datum Reference., Enter the name of datum as A and click right button from the Display frame, to enclose the datum inside a feature control frame., b) Click Define, select Through> Plane option and select BASE plane of the, screw jack body and click Done. Reference datum is created., , Application of Datum Reference., 214

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Solid Modelling and Additive Manufacturing (22053), , 9. Show Geometric Tolerance :, We have place reference datum either on views or on a selected dimensions. To, add geometric tolerance invoke Annotate> Geometric Tolerance from ribbon, menu., a) Click on, , parallel button., , b) Select Datum Ref. tab option and select Primary A., , (a)– Geometric Tolerance., c) Select Tol Value option and enter the tolerance value = 0.003, , (b)– Geometric Tolerance., d) Click Model Refs tab. Select surface option as shown in Figure., Then select the surface which parallel to base surface of the screw jack, body., , (a)– Selection of Surface reference., 215

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Solid Modelling and Additive Manufacturing (22053), , (b)– Selection of Surface reference., e) Select Type of Placement as With Leader and clickon the sameTop, plane of body sketch placement. Click on Done., , Geometric Tolerance., f) Finally click OK button Geometric Tolerance is created as shown in, Figure., , View with Tolerance., , 216

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Solid Modelling and Additive Manufacturing (22053), , Drawing views of body part with all aspects., , Continued in Next Practical – ----XI, , Resources Used, , S., No., 1., , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., 3., XII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 217

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Solid Modelling and Additive Manufacturing (22053), , XIV, , XV, , .........................................................................................................................................., Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., , 1. Explain the procedure for Projection views., 2. Create drawing views of all the individual components (models) of Tool Post and, Print it., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 218

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, XVI, , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=qlXXN872GqA&feature=youtu.be, 2. https://www.youtube.com/watch?v=mBScLZ5yy58, , XVII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 219

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Solid Modelling and Additive Manufacturing (22053), , Practical No.13: Draw and Print the production drawing of all, individual components part models of assembly, developed in PrO 5 to 8., --------------- Continued From Previous Practical., I, , Practical Significance, Drawing and documentation are essential for any product design, because they provide, guidance in the manufacturing of mechanical devices. While creating part model we, might have given various dimensions, geometric constraints, these details are used in, drawing mode directly. Drawing views provide a means communication between the, design engineers and production personnel. By studying this practical one can, automatically create orthographic and detail views of either a 3D model or an, assembly. Also here we can select multiple item types such as Dimension, Axis,, Surface Finish and their options at a time., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency –,  Automation – borders, title blocks, views.,  Creating of General and projection views.,  Apply dimensions to the drawing views., , IV, , Relevant Course Outcome(s),  Generate orthographic views of 3D solid models using Drawing workbench of any, parametric CAD software.,  Generate production drawing for given part models., , V, , Practical Outcome,  Use any available parametric CAD modeling software to create and print, orthographic views of individual models for any engineering products., , 220

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Solid Modelling and Additive Manufacturing (22053), , VI, , Relative Affective Domain Working in team work.,  Practice good housekeeping.,  Demonstrate working as a leader/a team member.,  Follow ethical Practices., , VII, , Minimum Theoretical Background,  Knowledge of drawing workbench of CAD modeling software.,  Types and Method of dimensions.,  Basic knowledge of reference projection views.,  Geometrical &Dimensional Tolerances (GD&T)., , VIII, , Resources Required, S., No., , Suggested Broad Specification, , Quantity, As per, batch, size, , Operating system, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3., , Software, , Any parametric solid modeling, software., , 4., , Plotter and 3D printer, , 1., , 2., , Name of Resource, Hardware: Personal, computer., , 3D printer / Rapid, prototypingMachine., , As per, batch, size, As per, batch, size, 1, , IX, , Precautions to be Followed,  Units used while designing the individual models should be properly selected.,  While taking drawing views, general view should take carefully.,  Care should be taken while applying dimensions, like placement of dimension, and should not repeat the same dimension., , X, , Procedure, To get the Drawing views of Nut, Spindle Screw & Cup components (models) of, Screw Jack individually, follow same steps explained in Practical No.-12., , 221

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Solid Modelling and Additive Manufacturing (22053), , Nut part drawing views with all aspects., , Screw Spindle part drawing views with all aspects., , 222

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Solid Modelling and Additive Manufacturing (22053), , Cup part drawing views with all aspects., XI, , Resources Used, , S., No., 1., , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., 3., XII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 223

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Solid Modelling and Additive Manufacturing (22053), , XV, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Different template options available in drawing., 2. Create drawing views of all the individual components (models) of Bench vice and, Print it., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 224

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, , XVI, , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=qlXXN872GqA&feature=youtu.be, 2. https://www.youtube.com/watch?v=mBScLZ5yy58, , XVII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 225

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Solid Modelling and Additive Manufacturing (22053), , Practical No.14: Draw and Print the production drawing of all, individual components part models of assembly, developed in PrO 5 to 8., ---------------- Continued From Previous Practical –, I, , Practical Significance, Drawing and documentation are essential for any product design, because they provide, guidance in the manufacturing of mechanical devices. While creating part model we, might have given various dimensions, geometric constraints, these details are used in, drawing mode directly. Drawing views provide a means communication between the, design engineers and production personnel. By studying this practical one can, automatically create orthographic and detail views of either a 3D model or an, assembly. Also here we can select multiple item types such as Dimension, Axis,, Surface Finish and their options at a time., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency –, 1. Opening an existing component., 2. Starting a new drawing - paper size, template., 3. Automation – borders, title blocks, views., 4. Creating of General and projection views., 5. Apply dimensions to the drawing views., , IV, , Relevant Course Outcome(s),  Generate orthographic views of 3D solid models using Drawing workbench of any, parametric CAD software.,  Generate production drawing for given part models., , V, , Practical Outcome,  Use any available parametric CAD modeling software to create and print, orthographic views of individual models for any engineering products., , 226

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Solid Modelling and Additive Manufacturing (22053), , VI, , Relative Affective Domain Working in team work.,  Practice good housekeeping.,  Demonstrate working as a leader/a team member., , VII, , Minimum Theoretical Background,  Knowledge of drawing workbench of CAD modeling software.,  Types and Method of dimensions.,  Basic knowledge of reference projection views.,  Geometrical and Dimensional Tolerances (GD&T)., , VIII, , Resources Required, , S., No., 1., , 2., , 3., 4., , Name of Resource, , Suggested Broad Specification, , Quantity, , Hardware: Personal, computer., , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., , Operating system, , Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , Software, , Any parametric solid modeling, software., , As per, batch, size, As per, batch, size, As per, batch, size, , Plotter and 3D printer, , 3D printer / Rapid prototyping, Machine., , 1, , IX, , Precautions to be Followed, 1. Units used while designing the individual models should be properly selected., 2. While taking drawing views, general view should take carefully., , X, , Procedure, To get the Drawing views of Washer, Screw & Tommy Bar components (models) of, Screw Jack individually, follow same steps explained in Practical No.-12., , 227

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Solid Modelling and Additive Manufacturing (22053), , Washer part drawing views with all aspects., , Screw part drawing views with all aspects., , 228

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Solid Modelling and Additive Manufacturing (22053), , Tommy part drawing views with all aspects., XI, , Resources Used, S., No., 1., , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., 3., , XII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIII, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., 229

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Solid Modelling and Additive Manufacturing (22053), , XIV, , Course Proficiency, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XV, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Explain the procedure of dimensioning on drawing views., 2. Create drawing views of all the individual components (models) of Drill Jig, and Print it., [Space for Answer], , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 230

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, , XVI, , References / Suggestions for Further Reading, 1. https://www.youtube.com/watch?v=qlXXN872GqA&feature=youtu.be, 2. https://www.youtube.com/watch?v=mBScLZ5yy58, , XVII Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 40%, 1 Use of proper commands., 20%, 2 Completion of drawing with minimum size of, 20%, model tree., Product Related (15 Marks), 60%, 3 Generation and printing of drawing views, tables,, 20%, etc. and their arrangement on different sheet size., 4 Able to answer oral questions., 20%, 5 Completion of work in time., 20%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, , Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 231

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Solid Modelling and Additive Manufacturing (22053), , Practical No.15: Print One Simple Component Using 3D, Printer/Rapid Prototyping Machine., I., , Practical Significance, 3D Printing technology could revolutionize and re-shape the world. Advances in 3D, printing technology can significantly change and improve the way we manufacture, products and produce goods worldwide.3D Printing can revolutionize the learning, experience by helping students interact with the subject matter. Affordable 3D printers, in institute may be used for a variety of applications which can aid students in finding, their field of interest easier and faster. Currently there are different types of, educational projects in order to attract students to the various fields by giving them the, opportunity to create and fabricate their own designs using 3D printing technology., The ability to develop and present ideas is one of the most important needs in the, student and society. The education system plays an important role in aiding people, achieve their full potential and human development. Regarding this 3D printing can, enable the creation of complex geometries which are very difficult, expensive, or, impossible to be manufactured using conventional production methods., II., , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III., , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency ‘Create component model in CAD software and produce it using 3D, Printer., , IV., , Relevant Course Outcome(s), Print component using 3D Printer/Rapid prototyping machine., , , V., , Practical Outcome, Design and create component model by CAD software and manufacturing it by, , 3D printer., , VI., , Relative Affective Domain Working in team work.,  Practice good housekeeping.,  Demonstrate working as a leader/a team member.,  Follow ethical Practices., 232

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Solid Modelling and Additive Manufacturing (22053), , VII., , Minimum Theoretical Background,  Basic knowledge of computer handling.,  Basic knowledge CAD software.,  Basic knowledge of plastic material properties, Introduction to 3D Printing:, A method of manufacturing known as ‘Additive manufacturing’, due to the fact that, instead of removing material to create a part, the process adds material in successive, patterns to create the desired shape., Main areas of use:, – aerospace, military, biomedical engineering,, , dental, – medical (body parts), buildings, , and cars, 3D printerSoftware OverviewTo operate your desktop 3D printer you will need to install a few software packages, onto your PC. You will need a 3D printer host, and .STL to .GCODE generator, and, optional CAD or 3D modeling software., Printer HostsPrinter Host software is used to control the 3D printer. The program not only allows, you to manually move the printer along all the axes, but set temperatures manually,, send commands, and receives feedback/error messages from the onboard electronics., CAD and 3D Modeling SoftwareOther common CAD and 3D modeling software are also capable of exporting the, required .STL files., , VIII. Experimental setup, , 233

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Solid Modelling and Additive Manufacturing (22053), , IX., , Resources Required, Sr., No., , Suggested Broad Specification, , Quantity, As per, batch, size, , Operating system, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Windows XP/Windows 7/ Windows, 8/Windows 10 or higher., , 3., , Software, , Any parametric solid modeling, software., , 4., , 3D printer, , 1., , 2., , Name of Resource, Hardware: Personal, computer., , 3D printer / Rapid prototyping, Machine., , As per, batch, size, As per, batch, size, 1, , X., , Precautions to be Followed, 1. The part needs to be a solid, that is, not just a surface; it needs to have a real, volume., 2. Be sure to calibrate the 3D printer before using it, it is essential to ensure that the, part sticks properly to the build plate. If it does not, at some point the part may, come loose and ruin the entire print job., 3. Parts with overhanging features will need supports to be printed properly. This, should be taken into account since after the model needs to be cleaned by, removing the supports. This may not be an issue unless the part is very delicate,, since it might break., , XI., , ProcedureFollowing two views of the component drawing are given to manufacture by 3D, printer., , The following steps are required to manufacture component by 3D printer:, A. Starting CAD software: As explain in practical No.01., B. Setting the Working Directory: As explain in practical No.01., C. Starting a New Object File:As explain in practicalNo.04., 234

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Solid Modelling and Additive Manufacturing (22053), , D. Selecting the Sketching Plane for the Base Feature: Asexplainimpractical No.4., E. Creating and Dimensioning the Sketch for the Base Feature: As explain in, practical No.04, , The first extruded feature is completed as shown in Figure., , F. Creating and Dimensioning the Sketch for the second Feature: As explain in, practical No.04, , The second extruded feature is completed and as shown in Figure., , G. Creating and Dimensioning the Sketch for the third Feature:As explained in, practical No.04, , Finally CAD model is shown in Figure. Choose the Save button from the File toolbar, and save the model., , 235

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Solid Modelling and Additive Manufacturing (22053), , H. The important step is that you have to Save As above CAD Model with .stl file, extension., , I. Start 3D print software:, 1. Start 3D printer software by double-clicking on the, icon on the desktop of your, computer. (Here Additive manufacturing Edition software used for demo)., 2. After setting up Additive manufacturing for the first time, you will be shown, the main interface screen., , J., , Load Model File:, 1.Select the model you would like to print. Select Open File, > Load Model., Once the file has been loaded, you will see a 3D rendering of your object on, the build platform., , 2. Select, PRACTICAL15_CADMODEL_SIMPLEJOB.stl file from, working directory as shown in Figure., 3. CAD Model, which was saved with .stlfile extension, will appear on the, screen as shown in Figure. Select the model to see the various options., , 236

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Solid Modelling and Additive Manufacturing (22053), , K., , Model Orientation:, 1. Rotate-The Rotate, button will give you the ability to orient your model, in along all three axes. Once you click the rotate button, three circles will, around your model. The red circle will allow you to rotate around the X axis., The Blue circle will rotate around the Z axis. The Green circle will rotate, around the Y axis., 2. Rotate model by in 360º around the X axis using rotate, , 3., , button., , Lay FlatThe Lay Flat button will ensure that the flat portion of your print is securely, attached to the bed. It is highly recommended to use this option after rotating, your model in the Z direction, as it will help prevent adhesion issues during, the print., , L. Material Type Selection:, 1. Choose Material drop down menu and select ABS (Village Plastic) as, shown in Figure., , M., , Adding 3D printer first time:, 1. Select, Add Printer option as shown in Figure., The add printer new window will display on the screen., 2. Select the Lulzbot TAZ 6 printer., , 237

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Solid Modelling and Additive Manufacturing (22053), , N., , Machine setting:, 1. Specify machine setting if any as per component size., , O. Process Parameter Options: Quality, 1. Layer Height-0.3mm, The thickness of each printed layer is known as the Layer Height. The smaller the, layer height, the smoother curves will appear. Larger layer heights are better for, bridging and overhang. Figure shows differences in Layer Height, , 2. Initial layer height- The height of the initial layer in mm. A thickener initial, layer makes adhesion to the build plate easier. Enter 0.4mm initial layer height in, our job., , 3. Base Line Width-0.4 mm, This will define how wide your “support” material is for the raft. This setting will, determine how well the surface layers of the raft print., , 4. Wall line width-This is width of a single wall line and value will be 0.4 mm is, enough in our case., , 5. Outer wall line thickness-Width of outermost wall line by lowering the, value. Higher level of value will print detail. Again 0.4 mm is sufficient for our case., 238

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Solid Modelling and Additive Manufacturing (22053), , 6. Outer Wall Line Width-Width of outermost wall line. By lowering this value,, higher level of detail can be printed. Specify 0.4 mm value in our case., , 7. Inner walls line width-0.4 mm.It is width of a single wall line for all wall lines, except the outermost one. Enter 0.4 mm value for current job., , 8. Top /bottom line width-0.4 mm width of single top/bottom line., , 9. Infill line width -0.4mm, , 10. Skirt/Brim line width-0.4 mm, , P. Process Parameter Options: Shell Setting, 1. Shell Wall Thickness- This defines the number of vertical walls that comprise the, outside of your model. We recommend keeping this set to multiples of your nozzle, width. Your 3D printer is equipped with a 1 mm nozzle., 2. Wall line count-3, , 3., , 4., , Outer wall wipe distance-0.25 mm, , Bottom/Top Thickness (mm)Also known as Surface Layers- this will determine how thick the top and bottom, layers are. A larger number here will create a thicker top and bottom which can be, helpful for strength, bridging, and quality purposes. We recommend keeping this, number as a multiple of your layer height. For current job mention the value as 0.8, mm., , 239

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Solid Modelling and Additive Manufacturing (22053), , 5., , Top layers- 4, , 6., , Bottom layers-2, , 7., , Top /bottom pattern- Lines, Bottom pattern initial layers-lines, Outer wall inset0.05 mm, , Q. Process Parameter Options:Infill Setting1. Infill Density- This number is expressed as a percentage. 0% will give a completely, hollow print, while 100% will give you a completely solid object. We have found that, 20% to 40% fill density is functional for most prints. For current job use 30 % infill, density., , 2. Infill line distance-1.33mm, Infill pattern-Lines, , 3. Infill Overlap-0.04 mm, , 4. Skin overlap percentage- 5%, 5. Skin overlap-0.02 mm, 6. Infill wipe distance-0.1 mm, 8. Infill Layer Thickness-This will control how thick your first printed layer height is, printed onto the heated bed. Having a larger initial layer height will help prevent your, part from popping off the plate., , 240

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Solid Modelling and Additive Manufacturing (22053), , 7. Gradual infill steps-0, 8. Minimum infill area-0 mm2, , 9. Skin expand distance-1.2 mm, , 10., 11., , Minimum skin angle for expansion-90º, Minimum skin width for expansion-00, , R. Process Parameter Options: Material setting, 1. Default printing temperature-240º C, , 2.Printing temperature-240ºC, , 3.Probe temperature-170º C, , 4.Soften temperature-170º C, , 5.Wipe temperature-170ºC, 6.Printing temperature initial layer-245º C, , S. Process Parameter Options: Printing Temperature, When using different filament materials you’ll need to update the desired hot end and, heated bed temperature. Any temperatures specified here will be used to automatically, set both the hot end and heated bed. Your print will not begin until these temperatures, t, are met. The current job needs 240º emperatures., 241

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Solid Modelling and Additive Manufacturing (22053), , 1. Final printing temperature-225 º, , c, , 2. Build plate temperature-110º C, , 3. Part removal temperature- 50º C, , 4. Keep heating-Tick, 5. Build plate temperature initial layer-110ºC, , 6. Filament DiameterThe filament diameter setting is one of the more important settings. Make sure that, you update this value periodically with your average filament diameter. While your, filament may be referred to as 3mm, it is more likely going to be near 2.9mm +/0.1mm. You will want this to be an accurate average, as it will allow your printer to, correctly calculate how much filament it is pulling into the hot end. For current case, use value 2.25mm diameter., , 7., , Enable Retraction-Tick, Retraction tells your printer to pull filament out of the hot end upon travel moves., Travel moves are when your print head moves from one area of the print, to another, without laying down filament. We recommend keeping this on for all filament types,, and adjusting the retraction length and speed for the specific filament. For current, job Tick the enable retraction option., 8. Filament Flow -100%, This controls how much filament your printer is extruding in relation to speed. This, setting is mainly used to adjust for filament density variations. Leave this value at, 100% as changing it can lead to surface quality issues., , 9. Initial layer flow rate- 100%, , 10. Retraction Distance-1 mm, Retraction Distance determines how much filament is pulled out of your hot end on, travel moves and when changing direction. You will want to adjust this depending, on temperature settings and filament type. Higher thermal retaining filaments such, as PLA behave better with a longer retraction distance. We have found anywhere, from 1mm to 3mm is a good starting range. For our case use 1 mm., , 242

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Solid Modelling and Additive Manufacturing (22053), , 11. Retraction Speed-10 mm/s, Retraction Speed determines the speed at which your filament is reversed out of, the hot end for travel moves and when changing direction during printing. We, recommend keeping this set to 25mm/s. For our case use value 10 mm/s., , 12. Retraction retract speed- 10 mm/s, , 13. Retraction prime speed-10 mm/s, , 14. Retraction extra prime amount-0 mm2, , 15. Retraction minimum travel-0.8 mm, , 16. Maximum retraction count-90, , 17. Minimum extrusion distance window-1 mm, , 18. Nozzle switch retraction distance-16 mm, , T. Process Parameter Options: Speed, 1 Print speed- 100 mm/s, Your overall printing speed can be adjusted here. If no other speeds are determined, in the later sections your printer will automatically default to this speed. This speed, will be different, depending on what type of filament you are using., , 243

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Solid Modelling and Additive Manufacturing (22053), , 2 Infill Speed-55 mm/s, This is how fast your print head speed will be while laying down the interior portion of, your model. Faster speeds are usually tolerable here, as none of the infill will be, visible from the outside of your object. If you go too fast compared to your inner and, outer shells, you can have adhesion issues or globs of filament left behind from the, print head. For current job give infill speed as 55 mm/s., , 3 Wall speed-50 mm/s, , 4 Outer Shell Speed-45 mm/s, This will be the outermost surface of the model. This is the most important setting, as, it controls the speed of your print head on the visible layers. As a general rule of, thumb, the slower you go the better looking print you will get., , 5 Inner Shell Speed-100 mm/s, This affects vertical walls that are in between the outer shell and infill. This will not be, visible but will help support the outer shell and the infill. We recommend keeping this, speed setting between your infill and your outer shell speed., , 6 Bottom Layer Speed-45 mm/s, This will control your initial layer speed. In general, a slower initial layerspeed will, help with first layer adhesion. In our case speed required 45mm/s, , 7 Travel Speed-175 mm/s, This setting will determine how fast your print head moves while not extruding, filament. A normal travel speed of 125 - 150mm/s is recommended., , 8 Initial layer speed-15 mm/s, , 9 Initial layer print speed-15 mm/s, 244

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Solid Modelling and Additive Manufacturing (22053), , 10 Initial layer travel speed- 26.26 mm/s, , 11 Brim speed-15 mm/s, Brim will create a single layer of filament, contacting and surrounding your model., This will increase the surface area of the part contacting the build platform thereby, preventing it from popping off the heated bed. Brim will also help in situations where, you are seeing corner lift. Brim settings can be adjusted in the Expert Settings options., , 12 Maximum Z speed-0 mm/s, , 13 Number of slower layers-2, , U. Process Parameter Options: Support Type, 1., Generate support-Tick, 2., Support placement-Everywhere, Some models will require support material in order to print properly. This will, usually occur when an object has an angle in relation to the build plate between 0, to 45 degrees. It is highly recommended to orient your object so that it minimizes, or eliminates the need for support.This prints support material between the heated, bed and object as well as between the object and itself. The green example is, Support Everywhere., , Figure- Support Types, V. Process Parameter Options: Cooling, 1. Enable cooling fan-Tick, 2. Fan speed-100 %, 245

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Solid Modelling and Additive Manufacturing (22053), , This section will define how your extruder cooling fan will operate during the print. Your, fan will not start until it has reached 25% or higher for speed settings. If your print speeds, are slowed down due to minimal layer time, the fan will run between minimum and, maximum speed based upon how much the layer is slowed down., , 3 Minimal Layer Time-20 s, This will determine a minimum amount of time your printer will spend laying down each, layer., , W. Process Parameter Options: Built plate adhesion setting, 1 Build plate adhesion type- Brim, , 4 Start/ brim minimum length-250 mm, , 5 Brim width-80 mm, , 6 Brim line count-10, , 7 Click Save to file will start the 3D printing., , 246

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Solid Modelling and Additive Manufacturing (22053), , XII., , Resources Used, , S., No., 1., , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., XIII. Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XIV. Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., XV., , Conclusions, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XVI. Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Define ‘Additive Manufacturing’, 2. Explain the working principle of 3D Printing Technology., [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 247

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, , XVII. References / Suggestions for Further Reading,  https://www.youtube.com/watch?v=e0rYO5YI7kA,  https://www.youtube.com/watch?v=HVgPM1ojyLw, XVIII. Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 70%, 1 Selecting relevant material, process and set up, 30%, parameters., 2 Slicing the solid model and transferring the file to, 20%, the printer., 3 Printing the components., 20%, Product Related (15 Marks), 30%, 4 Safety unloading the manufactured component, 10%, from the printer/machine., 5 Answer to sample questions., 10%, 6 Submission of digital drawing file/plot in time., 10%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 248

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Solid Modelling and Additive Manufacturing (22053), , Practical No.16: Print One Complex Component Using 3D Printer/Rapid, Prototyping Machine., I, , Practical Significance, 3D Printing technology could revolutionize and re-shape the world. Advances in 3D, printing technology can significantly change and improve the way we manufacture, products and produce goods worldwide.3D Printing can revolutionize the learning, experience by helping students interact with the subject matter. Affordable 3D printers, in institute may be used for a variety of applications which can aid students in finding, their field of interest easier and faster. Currently there are different types of, educational projects in order to attract students to the various fields by giving them the, opportunity to create and fabricate their own designs using 3D printing technology., The ability to develop and present ideas is one of the most important needs in the, student and society. The education system plays an important role in aiding people, achieve their full potential and human development. Regarding this 3D printing can, enable the creation of complex geometries which are very difficult, expensive, or, impossible to be manufactured using conventional production methods., , II, , Relevant Program Outcomes (POs), PO2-Discipline knowledge: Apply Mechanical engineering knowledge to solve, broad-based mechanical engineering related problems., PO3-Experiments and practice: Plan to perform experiments and practices to use the, results to solve broad-based Mechanical engineering problems., PO4-Engineering tools: Apply relevant Mechanical technologies and tools with an, understanding of the limitations., PO10-Life-long learning: Engage in independent and life-long learning activities in, the context of technological changes also in the Mechanical engineering and, allied industry., , III, , Competency and Skills, This practical is expected to develop the following skills for the industry identified, competency ‘Create component model in CAD software and produce it using 3D, Printer., , IV, , Relevant Course Outcome(s), Print component using 3D Printer/Rapid prototyping machine., , , V, , Practical Outcome, Design and create component model by CAD software and manufacturing it by, , 3D printer., , VI, , Relative Affective Domain Working in team work.,  Practice good housekeeping.,  Demonstrate working as a leader/a team member.,  Follow ethical Practices., 249

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Solid Modelling and Additive Manufacturing (22053), , VII, , Experimental set up:, , VIII, , Minimum Theoretical Background,  Basic knowledge of computer handling.,  Basic knowledge CAD software.,  Basic knowledge of plastic material properties,  Basic knowledge of 3D printing technology., , IX, , Resources Required, S., No., 1., , Name of Resource, , 3., , Hardware: Personal, computer., Software, , 4., , 3D printer, , Suggested Broad Specification, , Quantity, , (i5 or higher), RAM minimum 4 GB;, A3 / A4 size printer / plotter. Displaywide Screen preferably., Any parametric solid modeling, software., , As per, batch, size, , 3D printer / Rapid prototyping, Machine., , X, , Precautions to be Followed, As explained in previous practical No.01., , XI, , Procedure, , As per, batch, size, 1, , Following views of the component drawing are given to manufacture by 3D printer., , 250

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Solid Modelling and Additive Manufacturing (22053), , The following steps are required to manufacture component by 3D printer:, A. Starting solid modeling CAD software.-As explained in practical No. 01, B. Setting the Working Directory: As explained in practical No. 01, C. Starting a New Object File:As explain in practicalNo.04., D. To create CAD Model: As explained in practical No.04, 15.CAD model is, created and shown in Figure., , E. You have to Save As above CAD model with.stlfile extension., , F. Start 3D Printer software: As explained in practical No.15, G. Load Model File:As explained in practical No.15, CAD Model, which was saved with .stl file extension, will appear on the, screen as shown in Figure. Click the model for orientation., H. Model Orientation: As explained in practical No.15, 1. Rotate model by in 90º around the X axis using rotate, button., 2. Lay Flat-The Lay Flat button will ensure that the flat portion of your print is, securely attached to the bed. It is highly recommended to use this option after, rotating your model in the Z direction, as it will help prevent adhesion issues, during the print., , 251

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Solid Modelling and Additive Manufacturing (22053), , 3. Resting the job on the table maintaining X= -64.56, Y=38.07 and Z=0, but, in your case mostly locate the job at the center position of the printer table., , I. Material Type Selection: As explained in practical No.15, J. Process Parameter Options: Quality, 1. Layer Height-0.4 mm, , 2. Initial layer height-0.5 mm, , 3, , Line Width-0.4 mm, , 4, , Wall line width-0.4 mm, , 5., , Outer wall line width-0.4 mm, , 6., , Inner wall line width-0.4 mm, , 7. Top/Bottom line width-0.4 mm, , 252

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Solid Modelling and Additive Manufacturing (22053), , 8., , Infill line width- 0.4 mm, , 9., , Skirt/brim line width-0.4 mm, , K. Process Parameter Options: Shell Setting:, 1 Wall thickness-10 mm, 2 Wall line count-3, 3, , Outer wall wipe distance-0.25 mm, , 4, , Top/Bottom thickness- 0.8 mm, , 5, , Top thickness-1.1mm, , 6, , Top layers-03, , 7 Bottom thickness-1.1 mm, 8, 9, , Bottom layers-03, Outer wall inset-0.05 mm, , 10 Horizontal expansion-00 mm, 11 Extra skin wall count-01, , L. Process Parameter Options:Infill Setting:, 1 Infill density- 30%, 2 Infill line distance-4.8 mm, , 3, , Infill pattern- Triangle, , 253

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Solid Modelling and Additive Manufacturing (22053), , 4, , Infill overlap percentage-15 %, , 5, , Infill overlap-0.06 mm, , 6, , Skin overlap percentage-15 %, , 7, , Skin overlap- 0.06 mm, , 8, , Infill wipe distance-0.1 mm, , M. Process Parameter Options:Material setting, 1 Default printing temperature-250º C, 2 Printing temperature-250º C, 3 Probe temperature-170 º C, , 4 Soften temperature-170 º C, 5 Wipe temperature-170 º C, , 6 Printing temperature initial layer-250º C, 7, , Initial printing temperature-250º C, , 8, , Final printing temperature-250º C, , 9, , Build plate temperature-110º C, , 10 Part removal temperature-50º C, 11 Build plate temperature initial layer-110 º C, 12 Diameter-2.25 mm, 13 Flow percentage-100%, 254

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Solid Modelling and Additive Manufacturing (22053), , 14 Initial layer flow rate-100%, 15 Retraction distance-1mm, 16 Retraction speed-10 mm/s, 17 Retraction retract speed-10 mm/s, 18 Retraction prime speed-10 mm/s, 19 Retraction extra prime amount-00 mm2, 20 Retraction minimum travel-0.8 mm, 21 Maximum retraction count-90, 22 Minimum extrusion distance window-1 mm, 23 Nozzel switch retraction distance-16 mm, 24 Nozzle switch retraction speed-20 mm/s, 25 Nozzle switch retract speed-20 mm/s, 26 Nozzle switch prime speed-20 mm/s, , N. Process Parameter Options: Speed, 1 Print speed-150 mm/s, , 2 Infill speed-150 mm/s, 3, , Wall speed-75 mm/s, , 4, 5, 6, 7, , Outer wall speed-50 mm/s, Inner wall speed-70 mm/s, Top/Bottom speed-70 mm/s, Travel speed-180 mm/s, 255

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Solid Modelling and Additive Manufacturing (22053), , 8, , Initial layer speed-15 mm/s, , O. Process Parameter Options: Support, 1 Generate support-Tick, 2 Support stair step height-0.3 mm, 3, 4, , Support stair step maximum width-5 mm, Tower roof angle-65º, , P. Process Parameter Options: Built plate adhesion setting, 1 Build plate adhesion type-Brim, 2, , Skirt/Brim maximum length-200 mm, , 3, , Brim width-1 mm, , 4, , Brim line count-10, , 5, 6, , Save file in working directory., Click Save to file will start the 3D printing., , 256

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Solid Modelling and Additive Manufacturing (22053), , 7, XII, , Remove component carefully from printer table., , Resources Used, , S., No., 1., , Name of, Resource, , Make, , Broad Specifications, Details, , Quantity, , Remarks, (If any), , 2., 3., XIII, , Actual Procedure Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XIV, , Precautions Followed, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XV, , Conclusions, .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., .........................................................................................................................................., , XVI, , Practical Related Questions, Note: Below given are few sample questions for reference. Teachers must design more, such questions as to ensure the achievement of identified CO., 1. Explain working principle of SLA – Stereo lithography., 2. Write major benefits of 3D printing manufacturing technology., , [Space for Answer], ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, 257

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Solid Modelling and Additive Manufacturing (22053), , ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, ......................................................................................................................................................, XVII To manufacture 3D components by 3D printer for practice:, , 258

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Solid Modelling and Additive Manufacturing (22053), , XVIII References / Suggestions for Further Reading,  file:///C:/Users/Administrator/Downloads/cura-lulzbot_3.2.32.dmg,  https://www.youtube.com/watch?v=e0rYO5YI7kA,  https://www.youtube.com/watch?v=HVgPM1ojyLw,  https://www.youtube.com/watch?v=89BQz6X3ntc,  https://www.youtube.com/watch?v=LALTD5-TAkU,  https://www.lulzbot.com/learn?type_1=tutorial,  http://download.lulzbot.com/Software/cura-lulzbot/mac/cura-ulzbot_3.2.32.dmg, , XIX, , Assessment Scheme, Performance Indicators, Weightage, Process Related (10 Marks), 70%, 1 Selecting relevant material, process and set up, 30%, parameters., 2 Slicing the solid model and transferring the file to, 20%, the printer., 3 Printing the components., 20%, Product Related (15 Marks), 30%, 4 Safety unloading the manufactured component, 10%, from the printer/machine., 5 Answer to sample questions., 10%, 6 Submission of digital drawing file/plot in time., 10%, Total (25 Marks), 100 %, Names of Student Team Members, 1. …………………….., 2. ………………………., 3. …………………………, Dated signature of, Teacher, , Marks Obtained, Process, Product, Related(10) Related(15), , Total, (25), , 259