t3903-390-02_sg-ins_exc_en.pdf

Advanced Modeling using CreoParametric 2.0

T3903-390-02

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Copyright © 2012 Parametric Technology Corporation. All Rights Reserved.Copyright for PTC software products is with Parametric Technology Corporation, its subsidiary companies (collectively “PTC”),and their respective licensors. This software is provided under written license agreement, contains valuable trade secrets andproprietary information, and is protected by the copyright laws of the United States and other countries. It may not be copiedor distributed in any form or medium, disclosed to third parties, or used in any manner not provided for in the software licensesagreement except with written prior approval from PTC.

UNAUTHORIZED USE OF SOFTWARE OR ITS DOCUMENTATION CAN RESULT IN CIVIL DAMAGES AND CRIMINALPROSECUTION.

User and training guides and related documentation from PTC is subject to the copyright laws of the United States and othercountries and is provided under a license agreement that restricts copying, disclosure, and use of such documentation. PTChereby grants to the licensed software user the right to make copies in printed form of this documentation if provided onsoftware media, but only for internal/personal use and in accordance with the license agreement under which the applicablesoftware is licensed. Any copy made shall include the PTC copyright notice and any other proprietary notice provided by PTC.Training materials may not be copied without the express written consent of PTC. This documentation may not be disclosed,transferred, modified, or reduced to any form, including electronic media, or transmitted or made publicly available by anymeans without the prior written consent of PTC and no authorization is granted to make copies for such purposes.

Information described herein is furnished for general information only, is subject to change without notice, and should not beconstrued as a warranty or commitment by PTC. PTC assumes no responsibility or liability for any errors or inaccuracies thatmay appear in this document.

For Important Copyright, Trademark, Patent and Licensing Information see backside of this guide.

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About PTC UniversityWelcome to PTC University!With an unmatched depth and breadth of product development knowledge, PTC University helpsyou realize the most value from PTC products. Only PTC University offers:• An innovative learning methodology – PTC’s Precision Learning Methodology is a provenproprietary approach used by PTC to develop and deliver learning solutions.

• Flexible Delivery Options – PTC University ensures you receive the same quality training programsregardless of the learning style. Our extensive experience, innovative learning techniques, andtargeted learning modules facilitate the rapid retention of concepts, and higher user productivity.

• Premier Content and Expertise – A thorough instructor certification process and direct access tothe PTC product development and PTC consulting organizations means that only PTC coursescan give you highly-qualified instructors, the most up-to-date product information and bestpractices derived from thousands of deployments.

• Global Focus – PTC University delivers training where and when you need it by providing over100 training centers located across 35 countries offering content in nine languages.

• Delivering Value – A role-based learning design ensures the right people have the right tools to dotheir jobs productively while supporting the organization’s overall performance goals.

The course you are about to take will expose you to a number of learning offerings that PTCUniversity has available. These include:• Instructor-led Training (ILT) – The ideal blend of classroom lectures, personal demonstrations,hands-on workshops, assessments, and post-classroom tools.

• Pro/FICIENCY – This Web-based, skills assessment and development-planning tool will helpimprove your skills and productivity.

• eLearning Libraries – 24/7 access to Web-based training that will compliment your instructor-ledcourse.

• Precision LMS – A powerful learning management system that will manage your eLearningLibrary and Pro/FICIENCY assessments.

PTC University additionally offers Precision Learning Programs. These are corporate learningprograms designed to your organization’s specific goals, current skills, desired competencies, andtraining preferences.Whatever your learning needs are, PTC University can help you get the most out of your PTCproducts.

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PTC Telephone and Fax NumbersNorth America• Education Services Registration– Tel: (888) 782-3773– Fax: (781) 370-5307

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Asia• Please refer to http://www.ptc.com/services/training/contact.htm for contact information.In addition, you can access the PTC Web site at www.ptc.com. Our Web site contains the latesttraining schedules, registration information, directions to training facilities, and course descriptions.You can also reach technical support, and register for online service options such as knowledgebase searches, reference libraries, and documentation. You can also find general information aboutPTC, PTC Products, Consulting Services, Customer Support, and PTC Partners.

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Precision LearningPrecision Learning in the ClassroomPTC University uses the Precision Learning methodology to develop effective, comprehensive classmaterial that will improve the productivity of both individuals and organizations. PTC then teachesusing the proven instructional design principal of ‘Tell Me, Show Me, Let Me Do’:• Topics are introduced through a short presentation, highlighting the key concepts.• These key concepts are then reinforced by seeing them applied in the software application.• You then apply the concepts through structured exercises.After the course, a Pro/FICIENCY assessment is provided to enable you to assess yourunderstanding of the materials. The assessment results will also identify the class topics thatrequire further review.At the end of the class, you will either take a Pro/FICIENCY assessment via your PTC UniversityeLearning account, or your instructor will provide training on how to do this after the class.

Precision Learning After the ClassEach student that enrolls in a PTC class has a PTC University eLearning account. This account willbe automatically created if you do not already have one.As part of the class, you receive additional content in your account:• A Pro/FICIENCY assessment from the course content that generates a Recommended LearningReport based on your results.

• A Web-based training version of the course, based on the same instructional approach of lecture,demonstration, and exercise. The Recommended Learning Report will link directly to sectionsof this training that you may want to review.

Please note that Web-based training may not be available in all languages. The Web-based trainingis available in your account for one year after the live class.

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Precision Learning RecommendationsPTC uses a role-based training approach. The roles and the associated trainingare graphically displayed in a curriculum map. Curriculum maps are available fornumerous PTC products and versions in the training section of our Web site athttp://www.ptc.com/services/edserv/learning/paths/index.htm.

Please note that a localized map may not be available in every language and that the map above ispartial and for illustration purposes only.Before the end of the class, your instructor will review the map corresponding to the course youare taking. This review, along with instructor recommendations, should give you some ideas foradditional training that corresponds to your role and job functions.For P

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Training AgendaDay 1Module 01 ― Advanced Selection

Module 02 ― Advanced Datum Features

Module 03 ― Advanced Sketching

Module 04 ― Advanced Hole Creation

Module 05 ― Advanced Drafts and Ribs

Module 06 ― Advanced Shells

Module 07 ― Advanced Rounds and Chamfers

Day 2Module 08 ― Relations and Parameters

Module 09 ― Advanced Blends

Module 10 ― Sweeps with Variable Sections

Module 11 ― Helical Sweeps

Module 12 ― Swept Blends

Day 3Module 13 ― Advanced Layers

Module 14 ― Advanced Reference Management

Module 15 ― Family Tables

Module 16 ― Reusing Features

Module 17 ― Advanced Copy

Module 18 ― Advanced Patterns

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Table of ContentsAdvanced Modeling using Creo Parametric 2.0Sweeps with Variable Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1Designing a Compressor Blade Solid Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2Creating the Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5Designing a Camshaft Solid Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

Swept Blends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1Creating the Faucet Solid Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2Designing the Impeller Body of a Pump as a Solid Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-6Creating the Lamp Fixture Solid Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-9

Advanced Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1Creating and Managing Assembly Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

Advanced Reference Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1Managing References on the Camera Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2

Family Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1Creating Family Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2

Reusing Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1Creating User-Defined Features (UDFs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2Placing User-Defined Features (UDFs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-6

Advanced Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-1Creating Varying Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2Creating a Fill Pattern on MUFFLER.PRT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-5Creating a Pattern Table for the Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-8Creating Teeth in the V-Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-11Creating Advanced Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-13

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Module 10Sweeps with Variable Sections

© 2012 PTC Module 10 | Page 1

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Exercise 1: Designing a Compressor Blade Solid Model

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a sweep feature that uses an X-Trajectory to orient itself.• Make a section follow multiple trajectories.

ScenarioYou are designing a jet engine compressor. Aerodynamicists have already provided you with thenecessary trajectories and the desired cross-section to design a blade. To use the given inputsand retain mathematical control over the resulting surfaces, you have chosen to use the Sweeptool with a variable section.

Close Window Erase Not Displayed

Sweep\Multiple-Traj COMPRESSOR_BLADE.PRT

Task 1: Retrieve the model.

1. Disable all Datum Display types.2. Edit the definition of Curve id 71.

• Click Equation and review the equation usedto create the curve.

• Close the editor containing the equation.• Click Cancel Feature .

Task 2: Begin the creation of the blade with a sweep.

1. Select anywhere on the background to de-selectall items.

2. Click Sweep from the Shapes group.

3. Click Solid from the dashboard, if necessary.4. Select the curve on the left as the Origin

trajectory.5. Press and hold CTRL, and select the second

curve, to define the second trajectory.

Module 10 | Page 2 © 2012 PTC

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6. Select the References tab in the dashboard.• Set the second trajectory to be the X-Trajectoryby selecting the X check box for the Chain 1trajectory.

7. Click Create Section , then click SketchView from the Setup group.

8. Notice that the X-Trajectory locates itself in thepositive X-direction from the Origin trajectory (tothe right of the origin).

9. Click File System from the Get Data group inthe Sketch tab of the ribbon.• Select BLADE_XSEC.SEC and click Open.• Click above the model to place the sketch.• In the Rotate Resize tab, edit the Scale to 1.• Right-click the X location handle and drag it torelocate it to the left arc center of the sketch.

• Drag the location handle to place the sectionon the trajectory crosshairs. Also, drag therotation handle upward to bring the right arccenter close to the X-Trajectory.

10. Click Accept Changes .11. Delete the angled centerlines.12. Constrain the right arc center to be coincident

with the X-Trajectory reference.

13. Click OK .14. Click Complete Feature .15. Orient to the Standard Orientation.


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Task 3: Reshape the blade by using a different X-Trajectory.

1. Click the Operations group drop-down menu andselect Resume > Resume Last Set.

2. Rotate the model to view the curve.

3. Edit the definition of Sweep 1.4. Select the References tab.

• Click Chain 1 to select it.• In the graphics window, select the newlyresumed curve.

5. Spin the model to observe the new previewgeometry.

6. Click Complete Feature .7. Orient to the Standard Orientation.8. In the model tree, right-click Curve id 71 and

select Hide.9. Click Save from the Quick Access toolbar

and click OK to save the model.10. Click Close .

11. Click Erase Not Displayed in the ribbonand click OK.

This completes the exercise.


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Exercise 2: Creating the Trigger

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a sweep feature with a variable section.

ScenarioYou are assigned to create the trigger that is used to operate the drill. You create the trigger using asweep feature with a variable section.


Sweep\Trigger TRIGGER.PRT

Task 1: Create sketched trajectories.

1. Disable all Datum Display types.

2. Click Sketch from the Datum group.• Select datum plane FRONT from the modeltree for the sketching plane.

• Click Sketch then click Sketch View fromthe Setup group.

3. Enable only the following Sketcher Displaytypes: .

4. Click References from the Setup group.• Highlight the default references and clickDelete.

• Select the two references shown in the figure.• Click Close.

5. Click Center and Ends from the Arc typesdrop-down menu.• Sketch the arc shown in the figure.

6. Right-click and select Construction Centerline.• Sketch a centerline and edit the dimensions,as shown in the figure.


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7. Right-click and select Line Chain.• Sketch a line segment perpendicular to thecenterline, as shown in the figure.

8. Right-click and select 3-Point/Tangent End.• Sketch the arc and dimension the sketch, asshown in the figure.

9. Click OK .10. Press CTRL+D to orient to the Standard

Orientation.

Task 2: Use the trajectories to create a Variable Section Sweep.

1. Click Sweep from the Shapes group.• Select the left curve.• Click the start point arrow to flip it to the top.


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2. Press CTRL and select the right curve.

3. Click Create Section from the dashboard,then click Sketch View from the Setupgroup.

• Click References .• Select the top and bottom surfaces of themodel as additional references.

• Right-click and select Line Chain.• Sketch and dimension a “T” section bysnapping to the existing Sketcher points.

4. Click OK .5. Click Solid from the dashboard, if necessary.6. Click Complete Feature .7. Select Sketch 1 from the model tree, then

right-click and select Hide.Notice the ability of the variable sectionsweep to drive the triangular surfaces tozero, and then continue the feature as arectangular section.

8. Click Save from the Quick Access toolbarand click OK to save the model.

9. Click Close .

10. Click Erase Not Displayed in the ribbon andclick OK to erase all files from memory.



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Exercise 3: Designing a Camshaft Solid Model

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a solid feature using the Sweep tool.• Control the shape of a sweep feature mathematically.• Use the Trajpar and Evalgraph features simultaneously.

ScenarioYou are a part of the team that is designing a racing car. The senior engine designer has decided ona mechanism and lift profile for the intake and exhaust valves. He has provided you with a graphof the desired profiles and has asked you to develop the camshaft. The graph displays degreesof rotation versus offset distance. The mechanism has been designed such that a 1.00 diameterbase circle on the camshaft represents the zero lift profile on the cam. You have chosen the Sweepfeature as a tool to design this part because it enables you to control the shape mathematically.


Sweep\Cam CAM.PRT

Task 1: Review the datum graph features.

1. Disable all Datum Display types.2. Edit the definition of INTAKE_PROFILE.3. Click Done from the menu manager.4. Press ENTER to accept the default name for

the graph.5. Review the section that defines the Intake Cam

profile.6. The graph uses a set of imported points to define

the cam profile.7. Click OK .

8. Review the imported points.

• Click Folder Browser from the Navigatorand click Working Directory .

• Click in the address bar to highlight itscontents.

• Press END, type intake_profile.pts, andpress ENTER.

9. Edit the definition of EXHAUST_PROFILE.10. Click Done from the menu manager.11. Press ENTER to accept the default name for

the graph.12. Review the section that defines the Exhaust

Cam profile.


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13. View the point data from the dashboard.• Double-click the spline.• Select the File tab from the dashboard.• Click Coordinate Info .• Click Close in the Information dialog box afteryou finish viewing.

14. Click OK , then click OK again to close thesection window.

Task 2: Create the Intake Cam surface.


2. Click Solid from the dashboard, if necessary.3. Right-click to query and then select the intent

chain edge as the Origin trajectory.

4. Click Create Section , then click SketchView from the Setup group.


6. Sketch and dimension the open section.


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7. Select the Tools tab, then click Relationsfrom the Model Intent group.

8. Notice in the figure that the Sketcher dimensionsd4 controls the section's width.

9. In the Relations dialog box, type /* Controlthe height of the sketch based on theINTAKE_PROFILE.• Press ENTER and type sd4 = 0.125+ evalgraph ("INTAKE_PROFILE" ,trajpar*360) / 100.The dimension symbols in your sketchmay be different from what is shown in thefigure. You should use the correspondingdimension symbol in the relation.

The 0.125 is in the relation to define the offset of the base cylinder of the cam from thecylindrical shaft surface. The base cylinder of the cam defines the zero lift position(the rest position) of the follower.The system parameter EVALGRAPH is included to take the value of the height of thecam from the graph INTAKE_PROFILE at every point on the trajectory.The trajectory length parameter (trajpar) is included as a variable ratio from 0–1.You then multiply by 360 since you are defining the cam profile around the cylindricalshaft (360 degrees).Finally, you divide the resultant dimension by 100 since you are provided with the graphwith an x-axis scale of 100.

10. Click OK in the Relations dialog box.11. Notice that the Sketch updates to reflect the

relation.

12. Select the Sketch tab, then click OK .13. Notice that the section revolves at a constant

offset. Click Variable Section . Notice thatthe sweep surface has updated to vary thesection offset according to the sketch relationand datum graph.

14. Click Complete Feature .15. Orient to the Standard Orientation.


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Task 3: Create the Exhaust Cam surface.


2. Click Solid from the dashboard, if necessary.3. Right-click to query and then select the intent

chain edge as the Origin trajectory.

4. Click Create Section then click SketchView .

5. Sketch and dimension the open section.

6. Select the Tools tab, then click Relationsfrom the Model Intent group.

7. In the figure, notice that Sketcher dimension sd4controls the section's width.

8. In the Relations dialog box, type /* Control the height of the sketch based on theEXHAUST_PROFILE.• Press ENTER and type sd4 = 0.125 + evalgraph ("EXHAUST_PROFILE" , trajpar*360) /100.

• Click OK in the Relations dialog box.

The dimension symbols in your sketch may be different from what is shown in the figure.You should use the corresponding dimension symbol in the relation.


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9. Select the Sketch tab, then click OK .10. Notice that the section revolves at a constant

offset. Click Variable Section . Notice thatthe sweep surface has updated to vary thesection offset according to the sketch relationand datum graph.


Task 4: Change the profile of the Intake Cam lobe.

1. Edit the definition of INTAKE_PROFILE.2. Click Done from the menu manager.3. Press ENTER to accept the default name for

the graph.

4. Click Modify from the Editing group andselect the spline.

5. Select the File tab and click Open Coordinates.

• Select INTAKE_PROFILE_2.PTS and clickOpen.

• The graph appears.• The new points represent a more aggressivecam profile for the Intake Cam.

6. Click OK then click OK again to close thegraph section.


8. Click Close .

9. Click Erase Not Displayed in the ribbon andclick OK to erase all files from memory.



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Module 12Swept Blends


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Exercise 1: Creating the Faucet Solid Model

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a swept blend solid.

ScenarioYou are tasked with completing the faucet by using a swept blend solid.


Swept_Blend\Sketch_Sections FAUCET.PRT

Task 1: Create a swept blend. Begin by defining the trajectory and the first section.

1. Enable only the following Datum Display types:.

2. Click Swept Blend from the Shapes groupin the ribbon.

3. Click Solid from the dashboard, if necessary.4. Select the trajectory.

5. Select the Sections tab from the dashboard.6. Select the lower vertex.

7. Click Sketch from the Sections tab.8. Enable only the following Sketcher Display

types: .

9. Click No Hidden from the In Graphicstoolbar.

10. Click Sketch View from the Setup group.

11. Click Corner Rectangle and sketch arectangle that is symmetric about the crosshairs.Start at the upper-left corner so that the startpoint is in the correct location.

12. Click One-by-One and edit the dimensionsas shown.

13. Click OK .


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Task 2: Create the second section.

1. Press CTRL+D to orient to the StandardOrientation.

2. Click Insert from the Sections tab.3. Select datum point SEC_2.

4. Click Sketch from the Sections tab.



7. Right-click and select 3-Point / Tangent Endand sketch the arc with endpoints on theupper-left and lower-left rectangle endpoints.

8. Click Delete Segment from the Editing groupand delete the left line segments of the rectangle.


10. Click OK .

Task 3: Sketch the third section and complete the feature.



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2. Click Insert from the Sections tab.3. Select the left end vertex.




7. Right-click and select 3-Point / Tangent Endand sketch the arc with endpoints on theupper-left and lower-left rectangle endpoints.• Sketch a second arc with endpoints onthe upper-right and lower-right rectangleendpoints. This arc should have equal radiusto the first arc.

8. Click Delete Segment and delete the linesegments on the left and right sides of therectangle.


10. Click OK .


12. Click Shading .13. Click OK .


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14. Click Complete Feature .


16. Click File > Manage Session > Erase Current> Yes to erase the model from memory.



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Exercise 2: Designing the Impeller Body of a Pump as aSolid Model

ObjectivesAfter successfully completing this exercise, you will be able to:• Define tangency of a Swept Blend surface to the adjoining surface.

ScenarioYou are assigned a project to create a volute for a turbo compressor. The aerodynamicists haveprovided you with the outlet for the volute as well as the cross-sections desired at five stationsaround the perimeter of the model. You are asked to finish the 3-D model of the volute to completethe gas path.


Swept_Blend\Impeller_Housing IMPELLER_BODY_PART.PRT

Task 1: Begin the creation of a swept blend.



3. Click Solid from the dashboard, if necessary.4. Select the trajectory curve.

5. Begin dragging the right trajectory handle, thenpress SHIFT, and continue dragging the righttrajectory handle until it snaps to the edge of theexisting surface geometry.

6. Press SHIFT and select the upper half of thetrajectory.


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8. Select the Sections tab in the dashboard.• Select the Selected Sections option forsection type.

9. Select the first section.

10. Click Insert from the Sections tab.• Select the second section.

11. Click Insert from the Sections tab.• Select the third section.

12. Click Insert from the Sections tab.• Select the fourth section.


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Task 2: Specify tangency for the start of the swept blend.

1. Select the Tangency tab from the dashboard.• Edit the Boundary Condition for the StartSection from Free to Tangent.

• Select the surface adjacent to the highlightededge.

2. Continue selecting the remaining three adjacentsurfaces. Notice that the first surface highlightsafter all four surfaces have been selected.

Task 3: Complete the swept blend feature.

1. Click Complete Feature .2. De-select all geometry then press CTRL and select Curve id 39, Curve id 44, XSECTION1,

XSECTION2,XSECTION3, and XSECTION4. Then, right-click, and select Hide.3. Select the View tab in the ribbon.4. Select Save Status from the Status types drop-down menu.5. Select the Model tab.

Task 4: Shell the model.

1. Click Shell from the Engineering group.2. Edit the shell thickness to 0.10.3. Press CTRL and select all four vertical, flat

surfaces to remove.4. Click Complete Feature .

5. Spin the model to inspect it.





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Exercise 3: Creating the Lamp Fixture Solid Model

ObjectivesAfter successfully completing this exercise, you will be able to:• Create swept blend features.

ScenarioYou complete the design of a lamp fixture part by using swept blends.


Swept_Blend\Lamp_Fixture LAMP_FIXTURE.PRT

Task 1: Review the existing sketched curves in the Lamp Fixture part.

1. Disable all Datum Display types.2. Select the following sketches from the model

tree and take note of their location:• Trajectories TRAJ_1 and TRAJ_2.• Sections SEC_1, SEC_2, and SEC_3.

3. Click anywhere in the graphics window tode-select all items.

Task 2: Begin the creation of a swept blend.


2. Click Solid from the dashboard, if necessary.3. Select the trajectory curve.4. Click the arrow to flip the start point to the left

endpoint.

5. Select the Sections tab in the dashboard.• Select the Selected Sections option forsection type.

6. Select the first section.


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7. Click Insert from the Sections tab.• Select the second section.

Task 3: Insert an intermediate section.

1. Select Section 1 from the Sections tab.• Click Insert.• Notice a new Section 2 has been added afterSection 1 in the sections list.

• Click Remove.2. Select the Section 1 node from the dashboard

to activate it.• In the graphics window, right-click and selectInsert Section.

• Select the section shown.• Notice the refined shape of the blend.

Task 4: Control the cross-sectional area at a specified location.

1. Select the Options tab from the dashboard.• Select Set cross-section area control.• Right-click and select Area Ctrl Reference,if necessary.

• Select the vertex.

2. Type 1 for the Area value in the Options tab.• Type 4.5 for the Area value.


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1. Click Complete Feature .2. Click anywhere in the graphics window to

de-select all features.3. Press CTRL and select TRAJ_1, SEC_1,

SEC_2, and SEC_3 from the model tree.4. Right-click and select Hide.

Task 6: Redefine the swept blend to create a twisting effect.

1. Edit the definition of Swept Blend 1.2. In the dashboard, select the Sections tab and

select Section 3.• Drag the start point upward 2 vertices.


Task 7: Begin the creation of the second swept blend.


2. Click Solid from the dashboard, if necessary.3. Select the trajectory curve.


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4. Select the Sections tab in the dashboard.• Notice that Section 1 is highlighted.• Read the current prompt.• Select the start point of the trajectory as thelocation for Section 1.

Task 8: Sketch the first section.

1. Click Sketch from the Sections tab.2. Click Project .

• Select Loop as the Type.• Select the octagonal surface.

3. Click Close in the Type dialog box.


Orientation.6. Click Insert from the Sections tab.

• Select the right endpoint of the trajectory asthe location for Section 2.

Task 9: Sketch the second section.


2. Click Sketch View from the Setup group inthe ribbon.

3. Click Palette .• Double-click the 8-Sided Octagon sketch.• Click in the graphics window to place theSketch.

• Drag the sketch to the cross-hair intersection.• Edit the Scale to 1 and click Accept Changes

.• Click Close.


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4. Right-click and select Dimension.• Create a diameter dimension.• Select the 1.00 dimension and click Deleteto resolve the conflict.

• Edit the new diameter dimension to 8.

5. Select the vertex, then right-click and selectStart Point.


Orientation.

Task 10: Insert an intermediate section.

1. Select the Section 1 node from the Sections tabto activate it.

2. In the graphics window, right-click and selectInsert Section.

3. Enable Point Display .4. Select datum point PNT0.


6. Click Sketch View from the Setup group inthe ribbon.

7. Click Palette .• Place and dimension another octagonalsection, relocating the Start Point as shown.


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Orientation.

Task 11: Specify rotation angles for the sections.

1. Select the Sections tab from the dashboard, ifnecessary.

2. Select Section 2.3. Type -45 for the Rotation value and press

ENTER.4. Select Section 3.5. Type -90 for the Rotation value and press

ENTER.6. Orient the model as necessary to observe the

geometry.

Task 12: Control the cross-sectional area at a specified location.

1. Select the Options tab from the dashboard.2. Select Set cross-section area control, if

necessary.3. Right-click and select Area Ctrl Reference, if

necessary.4. Select the vertex.

5. Type 4 for the Area value in the Options tab.


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Task 13: Specify tangency for the start of the swept blend.

1. Select the Tangency tab from the dashboard.• Edit the Boundary Condition for the StartSection from Free to Tangent.

• Select the surface adjacent to the highlightededge.

2. Continue selecting the remaining seven adjacentsurfaces. Notice that the first surface highlightsafter all eight surfaces have been selected.


1. Click Complete Feature .2. Select TRAJ_2, then right-click and select Hide.3. Select the View tab in the ribbon.4. Select Save Status from the Status types

drop-down menu.5. Select the Model tab.

Task 15: Shell the model.

1. Click Shell from the Engineering group.2. Edit the shell thickness to 0.20.3. Press CTRL and select the top and left flat

surfaces to remove.4. Click Complete Feature .

5. Spin the model to inspect it.




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Task 16: View the models in the assembly.

1. Click Open and double-click LAMP.ASM toopen it.

The black appearance was previouslyapplied to the LAMP_FIXTURE.PRT in thecontext of the assembly.


3. Click File > Manage Session > Erase Current,then click Select All and OK to erase themodel from memory.



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Module 13Advanced Layers


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Exercise 1: Creating and Managing Assembly Layers

ObjectivesAfter successfully completing this exercise, you will be able to:• Create layers containing reference geometry features.

ScenarioComplete the following exercise to learn how to create and manage layers.


View\Create_Manage_Assy_Layers DRILL_POWERTRAIN.ASM

Task 1: In the top-level assembly, create a layer containing components from a sub-assembly.


2. In the top of the model tree, click Showand select Layer Tree. In the layer tree,right-click and select New Layer.

3. Type EXTERNAL_COMPS as the Name in theLayer Properties dialog box. Leave the dialogbox open.

4. Select components to add to the layer, as shownin the figure:• Select the CYLINDER.PRT from the modeland click Place component on current layerin the Place External Item dialog box.

• Select the ENG_BLOCK_REAR.PRT from themodel and click Place component on currentlayer in the Place External Item dialog box.

• Select the ENG_BLOCK_FRONT.PRT fromthe model and click Place component oncurrent layer in the Place External Item dialogbox.

5. Click OK in the Layer Properties dialog box. Then click Repaint from the In Graphicstoolbar.

6. Expand the layer in the layer tree.


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Task 2: Create a layer in a sub-assembly with the same name as the previous layer.

1. In the top of the model tree, click Showand select Model Tree.

2. Select the GEARBOX_CHUCK.ASM from themodel tree, then right-click and select Open.

3. In the top of the model tree, click Showand select Layer Tree. Right-click and selectNew Layer.

4. Type EXTERNAL_COMPS as the Name in theLayer Properties dialog box.

5. Select the GEARBOX_REAR.PRT and theGEARBOX_FRONT.PRT from the model to addto the layer, as shown in the figure.

6. Click OK in the Layer Properties dialog box. Thelayer should appear in the layer tree.

7. Click Close from the Quick Access toolbar toreturn to the DRILL_POWERTRAIN.ASM.

Task 3: Control the display of both layers from the top-level assembly.

1. In the top of the model tree, click Showand select Layer Tree.

2. Select the EXTERNAL_COMPS layer, thenright-click and select Hide. Then click Repaint

.3. The five components within both layers are

hidden.4. Right-click in the model tree and select Save

Status to save this layer display configurationto the model.

The status of Hidden/Unhidden layers mustbe saved manually to the model if the layerstatus is to be saved when the model issaved.


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5. Select the EXTERNAL_COMPS layer again, then right-click and select Unhide. Then clickRepaint . The components are returned to the display.

6. Right-click in the model tree and select Save Status to save this layer display configurationto the model.

7. Expand the EXTERNAL_COMPS node if necessary, and double-click the inDRILL_POWERTRAIN.ASM layer to expand it, as shown in the figure.

8. Right-click the layer and select Select Items.9. Right-click the graphics window. Notice that

various operations are available and selectSuppress. Child components highlight in thegraphics window, as shown in the figure.

10. Click OK in the Suppress dialog box. Theselected components and their children areremoved from the display and the regenerationcycle.

11. In the top of the layer tree, click Show and select Model Tree.12. Click the Operations group drop-down menu and select Resume > Resume.13. Click Save from the Quick Access toolbar and click OK to save the model.


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Task 4: Display only select datum planes in the assembly.

1. Select the ENGINE.ASM from the model tree,then right-click and select Open.

2. Click the Appearance Gallery drop-down menuand select Clear Appearance.• Select CYLINDER.PRT and click OK.

3. In the top of the model tree, click Showand select Layer Tree. Expand the

01__ASM_DEF_DTM_PLN layer.4. Select the in ENGINE.ASM layer, then right-click

and select Unhide. Then click Repaint .

You can use the existing default layers toselectively Hide/Unhide datum features fromvarious components or assemblies.

5. Select the in ENGINE.ASM layer again, then right-click and select Hide. Then click Repaint.

6. In the top of the model tree, click Show and select Model Tree.7. Click Save from the main toolbar and click OK to save the model.

Task 5: Create a layer on the CYLINDER.PRT for a datum plane.

1. Select the CYLINDER.PRT from the model tree,then right-click and select Open.


3. Expand the 01_PRT_ALL_DTM_PLN layer andselect the EXH_CUT_WIDTH datum plane.Right-click, select Remove Item, and click Yes.

4. The datum plane should appear.


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5. Right-click in the Layer Tree, select New Layer,and type DATUMS_TO_EDIT as the Name.

6. Select the datum plane you just displayed andclick OK.

7. Select the DATUMS_TO_EDIT layer, thenright-click and select Hide.

8. Click Repaint .

9. Click Close to return to the ENGINE.ASM.

Task 6: Display the datum planes at the assembly level and make modifications.


2. Select the DATUMS_TO_EDIT layer, thenright-click and select Unhide.

3. Click Repaint . Notice that the display of thedatum plane can be controlled from this layerat the assembly level.

4. In the top of the model tree, click Showand select Model Tree.

5. Select the CYLINDER.PRT, then right-click andselect Activate.

6. Click Named Views and select EXH_CUT.

7. Select the datum plane, then right-click andselect Edit.

8. Edit the dimension to 7.5 and click Regenerate.

9. Click Close to return to the DRILL_POWERTRAIN.ASM.


11. Click File > Manage Session > Erase Current,then click Select All and OK to erase themodel from memory.



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Module 14Advanced Reference Management


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Exercise 1: Managing References on the CameraHousing

ObjectivesAfter successfully completing this exercise, you will be able to:• Edit the references for features in a part model.

ScenarioIn this exercise, you move the cylindrical protrusion on the base feature and place it on the cutfeature. This involves creating new parent/child relationships for the cylindrical protrusion.


Edit\Edit_References CAMERA_HOUSING.PRT

Task 1: Try to change the references of the cylindrical protrusion to the surface of the cut feature.


2. Right-click CYLINDRICAL in the model tree andselect Edit References.

3. Click No so that you do not roll back the model.4. The top of the model highlights and the message

window prompts you to select an alternatesketching plane.

5. Specify a new reference for the highlightedsketching plane by leaving Alternate selectedas the default.

6. Select the top surface of the cut feature.

7. Next, the current horizontal reference plane forSketcher appears.

8. Keep the datum plane as the horizontalreference by selecting Same Ref from the menumanager.


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9. The first current dimensioning reference forthe sketch appears. Notice that this firstdimensioning reference is also the currenthorizontal reference plane from the previousstep.

10. Keep the datum plane as the first dimensioningreference by selecting Same Ref from the menumanager.

11. The second current dimensioning reference forthe sketch appears.

12. Change the second dimensioning referenceby leaving the default menu pick of Alternateselected in the menu manager.

13. Select the side surface.

14. Notice the message window states that there is a feature regeneration failure and the CUTfeature highlights in red in the model tree.

15. Click Cancel to undo the changes.

Task 2: Investigate the parent/child relationships of the cut feature.

1. Select the CUT feature in the model tree.2. Right-click and select Info > Reference Viewer.3. Click the down arrows for each of the three

parent features to display their references.


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4. Click Surface id 67. The front surface of theblock highlights as the sketching plane.

5. Click Surface id 177. The top of the cylinderhighlights as the horizontal reference plane.

6. This is an unwanted relationship.

7. Click Edge id 185. The bottom edge of thecylinder highlights as a dimensional reference.

This reference caused Edit References fromthe previous task to fail.

8. Click Surface id 147. The right surface ofthe rectangular protrusion highlights as adimensional reference.• This surface is used as an alignmentreference.

9. Click Close in the Reference Viewer dialog box.

Task 3: Break the parent/child relationship between the cut and the cylindrical protrusion.

1. Right-click the CUT feature in the model treeand select Edit References.

2. Click No so that you do not roll back the model.3. Retain the sketching plane by clicking Same

Ref. Read the message window.4. Leave the default Alternate and select the top

surface as the new horizontal reference plane.


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5. Leave the default Alternate and select the topsurface as the first dimensional reference.

6. Retain the second dimensional reference to thesecond protrusion by clicking Same Ref.

7. Notice that the message window indicatesthat the feature rerouted (edited references)successfully.

Task 4: Change the cylindrical protrusion as planned.

1. Right-click CYLINDRICAL in the model tree andselect Edit References.

2. Click No so you do not roll back the model.3. Select the top surface of the cut as the new

sketching plane.4. Click Same Ref to retain the horizontal

reference.5. Click Same Ref again to retain the first

dimensioning reference.

6. Click the side surface as the seconddimensioning reference.

7. Notice that the feature successfully reroutes.



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Task 5: Try to remove the rectangular protrusion as dictated by the new design intent.

1. Right-click RECTANGULAR in the model treeand select Delete.

2. Click Cancel in the Delete dialog box.The cut feature highlights because it is achild of the second protrusion.

Task 6: Break the parent/child relationship between the cut feature and protrusion feature. Inaddition, change the section of the cut feature.

1. Expand the CUT feature in the model tree.2. Edit the definition of section SECTION 1.3. Enable only the following Sketcher Display

types: .4. From the In Graphics toolbar, select No Hidden

from the Model Display types drop-downmenu.

5. Select the left vertical line, then right-click andselect Delete.

6. Click 3-Point / Tangent End from the Arctypes drop-down menu and create the tangentarc.

7. Click References from the Setup group.• Select Surf:F7 and click Delete.• Click Close.• Click Yes in the Missing References dialogbox.

8. Press CTRL and select the left arc and bottomhorizontal line, then right-click and selectTangent to create a tangency constraint.

9. Select the 2.50 dimension, then right-click andselect Strong.

10. Press ENTER to accept the dimension value.11. Click Normal and create the dimension

between the arc center and left surface.12. Click OK .


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Task 7: Delete the rectangular protrusion.

1. Click Shading from the Model Display typesdrop-down menu.

2. Right-click RECTANGULAR in the model treeand select Delete.

3. Click OK.

4. Click Save from the Quick Access toolbar and click OK to save the model.5. Click File > Manage Session > Erase Current > Yes to erase the model from memory.



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Module 15Family Tables


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Exercise 1: Creating Family Tables

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a family table of parts using the Copy with Increments tool.

ScenarioYou are assigned to create a family table of drill bits to be sold as extras for a drill.


Feature_Tools\Drill_Bit STD_BIT.PRT

Task 1: Create a family table of the STD_BIT.PRT.

1. Disable all Datum Display types.2. Select the MAIN_PROTRUSION feature from

the model tree, then right-click and select Edit.3. Select the 266 dimension, then right-click and

select Properties.• Edit the Name from d0 to BIT_LENGTH.• Click OK.

4. Select the diameter 14 dimension, thenright-click and select Properties.• Edit the Name from d1 to BIT_DIA.• Click OK.

5. Click the Model Intent group drop-down menu,and select Family Table .

6. Click Add Columns in the Family Tabledialog box.• Select the MAIN_PROTRUSION feature fromthe model tree and select the 14 and 266dimensions (BIT_DIA and BIT_LENGTH).

• Click OK in the Family Items dialog box.

7. Click Insert Instance in the Family Tabledialog box.

8. Type STD_BIT_8-218 for the Instance Name.9. Type 8 for the BIT_DIA and 218 for the

BIT_LENGTH.


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10. Select the STD_BIT_8-218 instance and click

Copy With Increments . Configure thePattern Instance dialog box, as shown in thefigure:• Type 18 as the Quantity, and press ENTER.• Select the BIT_DIA dimension and click AddItem .

• Type 1 as the Increment, and press ENTER.• Select the BIT_LENGTH dimension and clickAdd Item .

• Type 8 as the Increment, and press ENTER.11. Click OK in the Patternize Instance dialog box.12. Select the duplicate STD_BIT_8-218 instance

(called STD_BIT_8-2180), then right-click andselect Delete Rows.• Click Yes to confirm the deletion.

13. Edit the Instance Names, as shown in the figure.14. Leave the Family Table dialog box open.


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Task 2: Add a feature to the family table.

1. Click Add Columns in the Family Tabledialog box.

2. Click Feature in the Family Items dialog box, thenpress CTRL and select the REDUCTION_CUTfeature from the model tree.• Click OK in the Family Items dialog box.

3. Edit the instances, as shown in the figure.

4. In the Family Table dialog box, click Verify Instances .• Click Verify.• Note that all instances regenerate successfully.• Click Close.

5. Select STD_BIT_8-218 in the family table.6. Click Preview Instance . Click Close.

7. Select STD_BIT_14-266 in the family table.8. Click Preview Instance . Click Close.

9. Select STD_BIT_20–314 in the family table.10. Click Preview Instance . Click Close.

11. Click OK in the Family Table dialog box.

12. Click Save from the Quick Access toolbar and click OK to save the model.13. Click File > Manage Session > Erase Current > Yes to erase the model from memory.



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Module 16Reusing Features


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Exercise 1: Creating User-Defined Features (UDFs)

ObjectivesAfter successfully completing this exercise, you will be able to:• Reuse designs by creating user-defined features.

ScenarioYou are assigned to create a spline end on the connector ends of the front engine block where itinterfaces with the rear engine block. Due to the large number of connector ends in future models,use a generic connector end part to create a UDF.


Feature_Tools\Create_udf SPLINE_UDF_TEMPLATE.PRT

Task 1: Create a UDF from the end spline of the SPLINE_UDF_TEMPLATE.PRT.


2. In the ribbon, select the Tools tab.3. Click UDF Library from the Utilities group.4. Click Create from the menu manager.5. Type spline_end as the name and press

ENTER.6. Click Stand Alone > Done from the menu

manager.7. Click No in the Confirmation dialog box to not

create a reference part.8. Press CTRL and select the features in the model

tree, as shown in the figure, to be included inthe UDF.

All references from the features selected forthe UDF require prompts.

9. Click Done > Done/Return from the menumanager.

10. Note the highlighted surface in the model.11. Click Single > Done/Return from the menu

manager.12. Type end surface as the prompt and press

ENTER.

The end surface was used for both the holeand the cut.


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13. Note the highlighted datum axis in the model.14. Click Single > Done/Return from the menu

manager.15. Type axis as the prompt and press ENTER.

The axis was used for both the hole and theangled datum plane.

16. Note the highlighted edge in the model.17. Type end edge as the next prompt and press

ENTER.

The edge was used for the chamfer.

18. Note the highlighted datum plane in the model.19. Click Single > Done/Return from the menu

manager.20. Type reference plane as the next prompt and

press ENTER.

The plane was used for the angled datumplane.


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21. Note the highlighted surface in the model.22. Type cylindrical surface as the next prompt

and press ENTER.

The surface was used as a reference for thecut.

23. Click Next and Previous from the menu manager to review the prompts you have typedin and correct any prompts, if necessary.

24. Click Done/Return from the menu manager.

Task 2: Define optional UDF elements.

1. In the UDF dialog box, double-click Var Dims.2. Select the 10.5 dimension (d15) that defines the

length of the cuts.3. Click Done/Return > Done/Return from the

menu manager.4. Type spline length as the prompt for this

dimension and press ENTER.

5. In the UDF dialog box, double-click Var Elements.6. Select END_CHAMFER from the model tree.7. Click All > Done from the menu manager.8. Click OK in the Select dialog box to complete selecting variable elements.

9. In the UDF dialog box, double-click FamilyTable.

10. In the Family Table dialog box, click AddColumns to add a column to the table.

11. In the Family Items dialog box, do the following:• Select Feature.• Select CTR_HOLE from the model tree.• Click OK.


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12. In the Family Table dialog box, do the following:

• Click Insert Instance twice to add twoadditional instances.

• Edit the values for the instance name andfeature columns, as shown in the figure.

• Click OK.13. Click OK in the UDF dialog box to save the UDF

to your working directory.14. Click Done/Return from the menu manager.

15. Click Save from the main toolbar and clickOK to save the model.




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Exercise 2: Placing User-Defined Features (UDFs)

ObjectivesAfter successfully completing this exercise, you will be able to:• Reuse designs by inserting user-defined features.

ScenarioYou are assigned to create a spline end on the connector ends of the front engine block where itinterfaces with the rear engine block. Due to the large number of connector ends in future models,you have already created a UDF. Insert the UDF on the connector ends of the front engine block.


Feature_Tools\Place_UDF_Ex FINAL_GEAR_SHAFT_UDF.PRT

Task 1: Place the UDF on the Final Gear Shaft UDF part.


2. Click User-Defined Feature from the GetData group.

3. In the Open dialog box, select SPLINE_END.GPH and click Open.

4. In the Select Instance dialog box, select theNO_HOLE instance and click Open.

5. In the Insert User-Defined Feature dialog box,accept the default selection of Advancedreference configuration and click OK.

6. Click OK in the Information window.

7. In the User Defined Feature Placement dialogbox, do the following:• Select the Options tab and select Keepdimension values for Scaling.

• Clear the check box for redefining featureEND_CHAMFER.

• Select the Placement tab.


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8. In the User Defined Feature Placement dialogbox, select EDGE (Reference 1) from the list oforiginal feature references.

9. Select the edge shown in the figure as thecorresponding reference for End Edge.

10. In the User Defined Feature Placement dialogbox, select AXIS (Reference 2) from the list oforiginal feature references.

11. Select datum axis A_2, shown in the figure, asthe corresponding reference for Axis.

12. In the User Defined Feature Placement dialogbox, select SURFACE (Reference 3) from thelist of original feature references.

13. Select datum plane FRONT shown in the figureas the corresponding reference for ReferencePlane.


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15. Select the surface shown in the figure as thecorresponding reference for End Surface.


17. Select the surface shown in the figure as thecorresponding reference for Cylindrical Surface.

18. In the User Defined Feature Placement dialogbox, select the Variables tab and type 15 as thevalue for the d15 cut dimension.• Click Accept .

19. Click Save from the Quick Access toolbar.20. Click OK in the Save Object dialog box.

21. Click Close .


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Task 2: Place the UDF on the Chuck UDF part.

1. ClickWorking Directory from the Navigator.2. Double-click CHUCK_UDF.PRT from the

Browser to open it.3. Click User-Defined Feature from the Get

Data group.4. In the Open dialog box, select SPLINE_END.

GPH and click Open.5. In the Select Instance dialog box, select the

NO_HOLE instance and click Open.6. In the Insert User-Defined Feature dialog box,

accept the default selection of Advancedreference configuration and click OK.


8. In the User Defined Feature Placement dialogbox, do the following:• Select the Options tab and select Keepdimension values for Scaling.

• Clear the check box for redefining featureEND_CHAMFER.





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14. Select datum plane RIGHT shown in the figureas the corresponding reference for ReferencePlane.


16. Select the surface shown in the figure as thecorresponding reference for End Surface.


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19. In the User Defined Feature Placement dialogbox, select the Variables tab and type 20 as thevalue for the d15 cut dimension.• Click Accept .

In both cases, the UDF is removing material.However, it is possible to have a UDF thatuses various features to add and removematerial at the same time. Also, since afeature tool such as Extrude can be used tocreate cuts or protrusions, it is possible tocreate a UDF that can be toggled betweenCut and Protrusion upon placement.

20. Click Save from the main toolbar.21. Click OK in the Save Object dialog box.

22. Click Close .

Task 3: Place the UDF on the Engine Block Front part.

1. ClickWorking Directory from the Navigator.2. Double-click ENG_BLOCK_FRONT.PRT from

the Browser to open it.3. Click User-Defined Feature from the Get

Data group.4. In the Open dialog box, select SPLINE_END.

GPH and click Open.5. In the Select Instance dialog box, select the

HOLE instance and click Open.6. In the Insert User-Defined Feature dialog box,

accept the default selection of Advancedreference configuration and click OK.



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8. In the User Defined Feature Placement dialogbox, do the following:• Select the Options tab.• Select Scale by value for Scaling and type0.33 as the Scaling factor.



10. Zoom in and select the surface shown in thefigure as the corresponding reference for EndSurface.






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16. Select datum plane DTM1, shown in the figure,as the corresponding reference for ReferencePlane.



19. In the User Defined Feature Placement dialogbox, select the Variables tab and type 4 as thevalue for the d15 cut dimension.

20. In the User Defined Feature Placement dialog box, clear the Auto Regeneration check box.

• Click First Feature .• Click Last Feature .

21. Notice that you are now redefining the chamfer feature within the UDF.

22. In the dashboard, do the following:• Change 45 x D to Angle x D from theDimensioning Scheme drop-down list.

• Click Switch Surfaces .• Type 30 as the angle value.• Type 0.75 as the chamfer distance (D) value,as shown in the figure.

• Click Complete Feature .


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23. Click Accept in the User Defined FeaturePlacement dialog box.

24. Click Save from the main toolbar.25. Click OK in the Save Object dialog box.

26. Click Close .27. Click File > Manage Session > Erase Not

Displayed and click OK to erase all files frommemory.



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Module 18Advanced Patterns


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Exercise 1: Creating Varying Patterns

ObjectivesAfter successfully completing this exercise, you will be able to:• Use various techniques to create patterns with members that vary as they are patterned.

ScenarioThe front and back vents in the engine cover need patterns that vary in size for aesthetic andfunctional purposes.


Pattern\Dim_Pattern_1st ENGINE_COVER.PRT

Task 1: Create a varying dimension pattern of the FRONT_VENT.


2. Click Named Views from the In Graphicstoolbar and select FRONT.

3. Select Group FRONT_VENT from the modeltree.• Right-click and select Pattern.

4. In the dashboard, verify that the pattern type isDimension.

5. Select the 30 dimension and type 8 as theincrement.• Edit the number of members to 11.• Click Complete Feature from thedashboard.

• Notice that the pattern has narrowedautomatically.


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Task 2: Determine why the patterned cut automatically narrowed.

1. Expand Pattern 3 of FRONT_VENT, GroupFRONT_VENT, and FRONT_CUT.• Select Section 1, then right-click and selectEdit Definition.

• Enable only the following Sketcher Displaytypes: .

• Notice that the pattern narrowed automaticallydue to the construction geometry in the sketchthat was used to capture the design intent. Asthe 30 dimension is increased, the length ofthe sketch follows the construction geometry.

To test that a feature varies as desired onceit is patterned, drag the end of a dimension’sarrow.

2. Click Cancel from the Sketcher toolbar andthen click Yes.

Task 3: Create a varying pattern for the back vents.

1. Click Named Views and select BACK.2. Expand the Group BACK_VENT group in the

model tree.• Expand BACK_CUT.• Select Section 1, then right-click and selectEdit Definition.

• Notice the use of a construction arc in thesketch. The sketch follows this path whenpatterned.

3. Click Cancel from the Sketcher toolbar andthen click Yes.

4. Select the Group BACK_VENT from the modeltree.• Right-click and select Pattern.

5. Select the 30 dimension, type 8 as the increment,and press ENTER.• Edit the number of members to 6.• Click Complete Feature .

6. Spin the model slightly and notice that the lastpattern member is very close to the “U” shapedcut.


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Task 4: Refine the pattern by adding an additional dimension to increment.

1. With the pattern still selected, right-click andselect Edit Definition.• Press CTRL, select the 24 dimension, type -1as the increment, and press ENTER.

2. In the dashboard, do the following:• Select the Dimensions tab and notice thesecond dimension in the first direction.

• Edit the number of pattern members to 11 andpress ENTER.

• Click Complete Feature .

3. Click Save from the main toolbar and click OK to save the model.4. Click File > Manage Session > Erase Current > Yes to erase the model from memory.



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Exercise 2: Creating a Fill Pattern on MUFFLER.PRT

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a Fill pattern.

ScenarioYou are assigned to create a Fill pattern that achieves the desired muffler look and also containsenough hole area for the correct back pressure.


Pattern\Fill_Pattern MUFFLER.PRT

Task 1: Create a Fill pattern on MUFFLER.PRT.

1. Disable all Datum Display types.2. Select the EXH_HOLE feature from the model

tree, then right-click and select Pattern.3. Select Fill as the pattern type, if necessary.

• Select the circular sketch feature from themodel.

4. In the dashboard, edit the Pattern Spacingto 5.


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5. In the dashboard, select Diamond Spacingfrom the Spacing types drop-down menu.

6. In the dashboard, select Hexagon Spacingfrom the Spacing types drop-down menu.

7. In the dashboard, select Circle Spacingfrom the Spacing types drop-down menu.

8. Edit the Pattern Radial Spacing to 7.

9. In the dashboard, select Curve Spacing fromthe Spacing types drop-down menu.


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10. In the dashboard, select Spiral Spacingfrom the Spacing types drop-down menu.

11. Edit the Pattern Grid Rotation to 180degrees.

12. In the dashboard, select Square Spacingfrom the Spacing types drop-down menu.

13. Edit the Pattern Boundary Spacing to -1.

14. Edit the Pattern Grid Rotation to 45degrees.

15. Select the two pattern members closest to thefront edge to disable them.






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Exercise 3: Creating a Pattern Table for the Muffler

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a pattern table.

ScenarioYou are assigned to modify the design of a Muffler part by using pattern tables.


Pattern\Create_Pat_Table MUFFLER_PATTERN.PRT

Task 1: Open a template part and create a pattern.


2. Select Hole 1 and click Pattern from theEditing group.

3. In the dashboard, edit the pattern type toDimension, if necessary.• Select the 7.5 dimension and type 5 as theincrement.

• Right-click and select Direction 2Dimensions.

• Select the 8 dimension and type 5 as theincrement.

• Type 8 for the number of members in the firstdirection (horizontal).

• Type 7 for the number of members in thesecond direction (vertical).


Task 2: Convert the pattern to a pattern table.

1. Select the pattern of holes if it is not alreadyselected.

2. Right-click and select Edit Definition.3. In the dashboard, edit the pattern type from

Dimension to Table and click Yes in the Confirmdialog box.• Press CTRL and select the 3 dimension.• Select the Table Dimensions tab and noticeall three dimensions.


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4. In the dashboard, select the Tables tab.• Click in the Name field, edit the table name toMUFFLER-1, and press ENTER.

• Click Edit.5. The Pro/TABLE Editor launches.6. Notice that the table contains values for the

existing holes. The system converted theDimension pattern into a Table pattern.

7. In the Pro/TABLE Editor, select instance 1 byclicking in the idx column.• Press SHIFT and select instance 6 to highlightpattern instances 1–6.

• Click Edit > Delete.• In the Delete Rows/Columns dialog box, selectRows and click OK.

8. Repeat the previous step to delete the following rows:• 8• 11–12• 15–16• 23–25• 30–32• 39–40• 43–44• 47• 49–54

The pattern table starts numbering at zero (for the lead instance) but does not displaythis instance in the table since it cannot be modified using the table. Therefore, instance#1 in the table is actually pattern instance #2, and instance #55 in the table is actuallypattern instance #56.

9. Type 4 in the DIA (3.00) column for the following instances:• 9• 14–17• 22• 27–28• 33• 38–41• 46


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10. Click File > Exit from the Pro/TABLE Editor toclose it.






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Exercise 4: Creating Teeth in the V-Belt

ObjectivesAfter successfully completing this exercise, you will be able to:• Create a Curve pattern.

ScenarioYou are tasked with completing the V-belt for an engine's front pulley system. The design criteriastipulate that for this belt length there must be forty teeth.


Pattern\Curve_Pattern BELT.ASM

Task 1: Use a Curve pattern to create evenly spaced teeth within the V-belt.

1. Disable all Datum Display types.2. Notice that the V-belt wraps around the two

pulleys and the idler.

3. Right-click V_BELT_3L.PRT and select Open.4. Select the BELT_PATH sketch.

5. Right-click TOOTH_SECTION and select EditDefinition.


7. Click Sketch View from the Setup group.8. Zoom in on the section. Notice that it is tangent

to the BELT_PATH sketch.9. Click OK .


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10. With TOOTH_SECTION still selected, start theExtrude from the Engineering group.

11. In the dashboard, click Remove Material .• Edit the Side 1 depth to Through All .• Select the Options tab and edit the Side 2depth to Through All .

12. Click Complete Feature from the dashboard.


14. With Extrude 1 still selected, click Patternfrom the Editing group.

15. Edit the pattern type to Curve.16. Select sketch BELT_PATH.

17. In the dashboard, click Use Member Quantity.

• Edit the member quantity to 40.18. Click Complete Feature .


20. Click Close to return to the BELT.ASM.

21. Click Save from the main toolbar and click OK to save the model.

22. Click File > Manage Session > Erase Current, then click Select All and OK to erasethe model from memory.



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Exercise 5: Creating Advanced PatternsObjectivesAfter successfully completing this exercise, you will be able to:• Create dimension patterns in two directions.• Create rotational patterns.• Create fill patterns.• Create patterns of patterns.

ScenarioYou have been assigned to complete the design for a cover, which requires multiple patterns.


Pattern\Adv_Patterns COVER.PRT

Task 1: Create the first pattern of a Nested pattern.


2. Click Named Views from the In Graphicstoolbar and select TOP.

3. Zoom in on Hole 1 near the center of the model.4. Select Hole 1 and click Pattern .5. In the dashboard, select Dimension as the

pattern type.6. Select the horizontal 2 dimension and edit the

increment to –4.7. Right-click and select Direction 2 Dimensions.8. Select the vertical 2 dimension and edit the

increment to –4.

9. Click Complete Feature .10. Zoom out slightly.


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Task 2: Create a Fill pattern of the previous pattern.

1. Create a Fill pattern of the previous pattern.2. Right-click and select Pattern.3. Edit the pattern type to Fill.

• Select the circular FILL_SKETCH from themodel.

4. Select Diamond Spacing from the spacingtypes drop-down menu.• Type 16 as the Pattern Spacing valueand press ENTER.

• Type 6 as the Pattern Boundary Spacingvalue and press ENTER.

• Notice that the pattern is not symmetric withinthe sketch, as shown in the figure.

5. In the dashboard, select the Options tab.• Select the Use alternate origin check box.• Select datum point PNT0 from the model tree.• Notice that the pattern is now symmetric withinthe sketch.



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Task 3: Pattern the extruded cut.

1. Disable Plane Display .

2. Disable Point Display .3. Select Extrude 2 from the model tree.4. Click Pattern .

• Verify that the pattern type is Dimension.• Select the 49 dimension and edit the incrementto 12.

• Edit the number of members to 4.5. Click Complete Feature .6. Spin the model and view the pattern.

Task 4: Create a rotational dimension pattern of the previous pattern.

1. Select the pattern of extruded cuts, if not alreadyselected.

2. Right-click and select Pattern.3. Verify that the pattern type is set to Dimension.4. Select the 45 degree dimension, and edit the

increment to 60.5. Edit the number of members to 6.6. Click Complete Feature .7. Spin the model and view the pattern.

Task 5: Create a reference pattern on the previous nested pattern.

1. Select Round 2 from the model tree and zoomin slightly.

2. Right-click and select Pattern.3. Notice that the pattern type is set to Reference.4. Notice that the Reference type is set to Feature.5. Click Complete Feature .

6. With the pattern still selected, right-click andselect Edit Definition.

7. In the dashboard, edit the Reference type toGroup.



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9. With the pattern still selected, right-click andselect Edit Definition.

10. In the dashboard, edit the Reference type toBoth.


Task 6: Complete the model by increasing the quantity of the Nested pattern.

1. Select the nested pattern of extruded cuts (notthe reference pattern). Right-click and selectEdit Definition.

2. In the dashboard, select the Dimensions tab.• Edit the Direction 1 Increment to 14.4.

3. Edit the number of members to 25.4. Click Complete Feature .

5. Zoom in to view the feature detail.6. Click Save from the main toolbar and click

OK to save the model.7. Click File > Manage Session > Erase Current

> Yes to erase the model from memory.



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CopyrightAdvanced Modeling using Creo Parametric 2.0Copyright © 2012 Parametric Technology Corporation and/or Its Subsidiary Companies. All Rights Reserved.User and training guides and related documentation from Parametric Technology Corporation and its subsidiary companies (collectively "PTC") are subject to the copyright laws of the United States andother countries and are provided under a license agreement that restricts copying, disclosure, and use of such documentation. PTC hereby grants to the licensed software user the right to make copiesin printed form of this documentation if provided on software media, but only for internal/personal use and in accordance with the license agreement under which the applicable software is licensed. Anycopy made shall include the PTC copyright notice and any other proprietary notice provided by PTC. Training materials may not be copied without the express written consent of PTC. This documentationmay not be disclosed, transferred, modified, or reduced to any form, including electronic media, or transmitted or made publicly available by any means without the prior written consent of PTC and noauthorization is granted to make copies for such purposes.Information described herein is furnished for general information only, is subject to change without notice, and should not be construed as a warranty or commitment by PTC. PTC assumes no responsibilityor liability for any errors or inaccuracies that may appear in this document.The software described in this document is provided under written license agreement, contains valuable trade secrets and proprietary information, and is protected by the copyright laws of the UnitedStates and other countries. It may not be copied or distributed in any form or medium, disclosed to third parties, or used in any manner not provided for in the software licenses agreement except withwritten prior approval from PTC.UNAUTHORIZED USE OF SOFTWARE OR ITS DOCUMENTATION CAN RESULT IN CIVIL DAMAGES AND CRIMINAL PROSECUTION. PTC regards software piracy as the crime it is, and we viewoffenders accordingly. We do not tolerate the piracy of PTC software products, and we pursue (both civilly and criminally) those who do so using all legal means available, including public and privatesurveillance resources. As part of these efforts, PTC uses data monitoring and scouring technologies to obtain and transmit data on users of illegal copies of our software. This data collection is notperformed on users of legally licensed software from PTC and its authorized distributors. If you are using an illegal copy of our software and do not consent to the collection and transmission of suchdata (including to the United States), cease using the illegal version, and contact PTC to obtain a legally licensed copy.Important Copyright, Trademark, Patent, and Licensing Information: See the About Box, or copyright notice, of your PTC software.UNITED STATES GOVERNMENT RESTRICTED RIGHTS LEGENDThis document and the software described herein are Commercial Computer Documentation and Software, pursuant to FAR 12.212(a)-(b) (OCT’95) or DFARS 227.7202-1(a) and 227.7202-3(a) (JUN’95),and are provided to the US Government under a limited commercial license only. For procurements predating the above clauses, use, duplication, or disclosure by the Government is subject to therestrictions set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software Clause at DFARS 252.227-7013 (OCT’88) or Commercial Computer Software-Restricted Rights atFAR 52.227-19(c)(1)-(2) (JUN’87), as applicable. 01012012Parametric Technology Corporation, 140 Kendrick Street, Needham, MA 02494 USA

PRINTING HISTORYDocument No. Date DescriptionT3903-390-02 05/04/2012 Initial Printing of:

Advanced Modeling using Creo Parametric 2.0Order Number DT-T3903-390-02Printed in the U.S.A

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