how to make a box and gear with catia

8/18/2019 How to make a box and gear with CATIA

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Up and Running withCATIA

Make a box with a holeMake a gear

By:Frank Cianciarulo and Mario Mondal


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Table of Contents

1. Introduction ............................................................................................................................ 2

1.1. Legend ......................................................................................................................... 3

1.2. List of Materials ............................................................................................................ 3

2. Glossary ................................................................................................................................. 4

3. Making a Box with a Hole ....................................................................................................... 6

4. Making a Gear ......................................................................................................................14

5. FAQs.....................................................................................................................................30

6. References ...........................................................................................................................32


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Introduction

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1. Introduction

CATIA is one of the world’s leading three-dimensional modeling programs and is used

by many professional engineering companies, such as The Boeing Company, BMW, and Bell

Helicopter, because of its abilities to not only produce three-dimensional models, but also

perform stress analysis on those models. Having a knowledge of how to use CATIA to construct

models is helpful when applying for jobs at engineering companies. However, many engineering

programs do not offer classes that teach CATIA, which can both hinder students ’ chances of

getting a job, and make it difficult to learn and use CATIA once they are employed by one of

these companies.

This manual is intended for aerospace or mechanical engineering students with a

background in other computer aided design (CAD) software, such as Autodesk Inventor,

SolidWorks, and ProE, and the associated terminology, who wish to learn the basics of CATIA

in an effort to improve their marketability and skillset. This manual contains the steps formodeling both a cube with a hole drilled through the middle and a gear. It is important to note

that many commands in CATIA have different names than their counterparts in other modeling

software. A glossary of terms specific to CATIA has been included before the steps, which

explains each command used, and also notes what command from other modeling software is

similar to each CATIA command, where appropriate.

The process of completing both models will introduce the user to the interface of CATIA

and its basic modeling commands. Depending on how proficient the user is with other modeling

software, it will take between one to two hours to complete both models. The end of the manual

contains a section with answers to frequently asked questions about CATIA and its commands

that will be helpful when using the program for the first time.

Learning CATIA is a process overlooked by many engineering programs and students

that is not much different from the process of learning other modeling software, but one that will

be very beneficial when applying to future internships and jobs.


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Introduction

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1.1. Legend

Tips: Useful information to make using CATIA easier.

Caution: Difficult steps that could result in mistakes if not done carefully.

Save: Reminder to save your work. This icon will appear periodically to get you in thehabit of saving your work frequently, which will be useful when working on longprojects.

Note: Additional information on CATIA and how it will respond to certain commands.

1.2. List of Materials

□ Computer

□ Windows XP operating system or higher

□ Software Copy of CATIA V5

For information on installing CATIA, please see question 5.4 in the FAQ section.


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Glossary

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2. Glossary

2.1:

2.2:

2.3:

2.4:

2.5:

2.6:

2.7:

2.8:

2.10:

2.11:

Sketcher - Allows the user to draw two dimensional sketches.

Pad - Extends a two dimensional sketch along the axis of the third dimension.Similar to the “Join” command in the “Extrude” option.

Pocket - Cuts away material from an object in the shape defined by a two

dimensional sketch. Similar to the “Cut” command in the “Extrude” option.

Shaft - Adds material to the object by rotating a two-dimensional drawing

around a rotation axis. Similar to the “Revolve” command in other CAD

software.

Hole – Places a hole through the object. Shares the same name as

commands with similar functions from other CAD software.

Line – Allows you to draw a line in Sketcher. Shares the same name as


Constraint - Allows you to add dimensions to the sketches.

Exit workbench - Returns you from Sketcher to the normal workspace.

Shares the same name as commands with similar functions from other

programs

Fit-All-In - Zooms the screen to fit the entire drawing on screen.

Circle – Allows you to draw a circle in Sketcher. Shares the same name

as commands with similar functions from other CAD software.


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Glossary

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2.12:

2.13:

2.14:

2.15:

2.16:

Quick Trim – Cuts away the selected line up to where that line

intersects another line. Shares the same name as commands with

similar functions from other CAD software.

Circular Pattern – Recreates an object a specified number of times

around a given radius. Shares the same name as commands with

similar functions from other CAD software.

Origin – The center point of the Workspace. Shares the same name as


Workspace – Area on the display where the model is constructed.

Trim – Drop-down menu containing tools to remove parts of the two

dimensional drawing.


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Making a Box with a Hole

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3. Making a Box with a Hole

3.0: Open CATIA V5 on your computer.

3.1: Click Start, the go to Mechanical Design and click Part Design.

Figure 3.1

3.2: Enter the part name as “Box_hole” in the New Part dialogue box.

Figure 3.2


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3.3: Select the YZ plane on the left side of the screen.

3.4: Select the Sketcher command from the toolbar at the right of the screen.

Figure 3.3-3.4

3.5: Draw a square with four lines using the Line command.

Double-clicking the line command will cause the line command to stay on, instead ofturning off after each line is drawn.

Also note that the box command can be used to accomplish step 3.5.

CATIA will automatically change to a two-dimensional view mode upon selectingsketcher.

Figure 3.5


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3.6: Select the Constraint icon from the toolbar at the right of the screen.

3.7: Select the bottom line, click and drag away from the line to place the dimension.

3.8: Double click on the dimension.

Figure 3.6

3.9: Enter a value of 10.0 in the Constraint Definition dialogue box for the length, and click OK.

Figure 3.9


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3.10: Repeat steps 3.6-3.9 for the either right or left side line.

Be sure to not constrain the remaining two lines, as this could cause the sketch tobecome over-constrained. An over-constrained sketch cannot be used to makemodels. If the sketch becomes over constrained, delete the extra constraints until onlythe first two remain.

3.11: Click on the Fit-All-In icon in the toolbar to automatically adjust the zoom of the screen to

fit the entire sketch.

3.12: Select the Exit Workbench command from the toolbar at the right of the screen to exit out

of the sketch screen.

Figure 3.12

Save your work after completing the sketch.


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3.13: Click the sketch surface in the workspace.

3.14: Select the Pad command.

Figure 3.14

3.15: Enter a length of 10 into the Pad Definition dialogue box.

Figure 3.15

3.16: Select the OK button in the Pad command.


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Now you should have a cube of size 10 by 10 by 10.

Save your work after generating the cube.

3.17: Select the Hole command.

3.18: Click the front face of the cube.

3.19: Type a value of 10 in the Depth box, and a value of 5 in the Diameter box in the HoleDefinition dialogue box.

3.20: Click on the Positioning Sketch icon in the Hole Definition dialogue box.

This will change the view to face the side where the hole was placed, allowing you toconstrain the location of the hole.

Figure 3.17-3.20


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3.21: Click the Constraint icon.

3.22: Select the center point of the hole and the left side of the cube, and place the dimension.

3.23: Select the center point of the hole and the top side of the cube, and place the dimension.

Figure 3.22-3.23

3.24: Change both dimensions by double clicking on them and changing the value in the

Constraint Definition dialogue box to five.

Figure 3.24


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3.25: Click on Exit Workbench icon.

3.26: Click OK in the Hole Definition dialogue box to complete the model.

Figure 3.26

Now you should have a cube of size 10 by 10 by 10 with a 5 diameter hole in it.

Save your work after finishing the first model.


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Making a Gear

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Figure 4.1

4. Making a Gear

4.0: Click Start, the go to Mechanical Design and click Part Design.

4.1: Enter the part name as “gear” in the New Part dialogue box.

4.2: Click OK.

4.3: Select the YZ plane on the left side of the screen.

4.4: Select the Sketcher command from the toolbar at the rightof the screen.

4.5: Click on the circle command.

Make sure only “Enable Hybrid Design” box ischecked.

Figure 4.5


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Making a Gear

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4.6: Click the origin (0, 0) and draw an arbitrary circle.

Figure 4.6 – 4.11

4.7: Select the Constraint icon from the toolbar at the right of the screen.

4.8: Click on the circle to place a dimension.

4.9: Double click on the dimension.

4.10: Enter a value of 5in in the Constraint Definition dialogue box for the Diameter.

4.11: Click OK.

4.12: Click on the Fit-All-In icon in the toolbar at the top of the screen to automatically adjust the

zoom of the screen to fit the entire sketch.

4.13: Click on the Exit Workbench command from the toolbar at the right of the screen to exit

out of the sketch screen.

Now you should have a circle with a 5 inch diameter in the workspace.

Make sure that the Dimension box is set to the Diameter option


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Making a Gear

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4.14: Select the sketch of the circle in the workspace.

Figure 4.14

4.15: Click on the Pad icon from the toolbar at right of the screen.

4.16: Enter a length of 1 into the Pad Definition dialogue box.

Figure 4.14

Figure 4.16


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Making a Gear

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4.17: Click OK in the Pad Definition dialogue box.

Now you should have a disk with a 5 inch diameter and a thickness of 1 inch.

Save your work after generating the disk.

4.18: Click on the front face of the disk.

Figure 4.18

4.19: Click on the Sketch icon from the toolbar at the right of the screen.

4.20: Double click on the Circle command.

Double-clicking the Circle command will cause the circle command to stay on, insteadof turning off after each circle is drawn.

4.21: Place your cursor at the origin.

4.22: Draw two different circles centered at the origin.


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Making a Gear

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4.23: Change the dimension of the inner circle to 5 inch.

4.24: Change the dimension of the outer circle to 6 inch.

Outer Circle

Inner Circle

Save your work at this point.

4.25: Double click on the Line command from the toolbar.

Double-clicking the Line command will cause the Line command to stay on, insteadof turning off after each line is drawn.

The next steps are going to be tricky. It is suggested to follow the pictures morecarefully.

Figure 4.22-4.24


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Making a Gear

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4.26: Draw two slanted lines as shown in the figure 4.26 (white lines), so that their base is on

the horizontal axis, and they touch the outer circle.

4.27: Click on the Constraint icon.

4.28: Click on the base of the one line, and again click the origin (0,0) point.

4.29: Place the dimension below the line.

Figure 4.26

Figure 4.28-4.29


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Making a Gear

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4.30: Change the Dimension to 0.5 inch.

4.31: Repeat steps 4.27-4.30 for the other line.

4.32: Draw a vertical line at the origin (0, 0) using the Line command.

Figure 4.31

Figure 4.32


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Making a Gear

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4.33: Click on the Constraint icon.

4.34: Click on the top point of one of the slanted line, and click anywhere on the vertical line.

4.35: Place the dimension.

4.36: Change the dimension to 0.1 inch.

4.37: Repeat steps 4.33 – 4.36 for the other slanted line.

Figure 4.34-4.36

Figure 4.37


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Making a Gear

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4.38: Click on the Trim icon from the toolbar at the top of the screen.

4.39: Select the Eraser icon from the drop down menu.

Figure 4.38

Figure 4.39


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Making a Gear

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4.40: Trim down everything except the triangular shape as shown in the figure by clicking each

section of the lines that are not part of the triangle.

4.41: Click on the Exit Workbench icon.

4.42: Select the small sketch that is done in step 4.40.

Figure 4.40

Figure 4.42


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Making a Gear

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4.43: Click on the Pad icon.

4.44: Enter a value of 1 inch in the Length box in the Pad Definition dialogue box.

4.45: Click OK.


If your shape comes out in the flipped direction, Clicked on the Reverse Directionoption to flip the shape back.

Figure 4.44


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Making a Gear

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4.46: Click on the Pad.2 at the left side of the screen, which is highlighted in the next figure.

4.47: Click on the Circular Pattern icon from the toolbar at the bottom of the screen.

Figure 4.46

Figure 4.47


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Making a Gear

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4.48: Select “Instance(s) & total angle” from the drop down menu of the Parameter section of

the Circular Pattern Definition dialogue box.

4.49: Type 20 in the “Instance(s)” section of the Circular Pattern Definition dialogue box.

4.50: Type 360 in the “Total angle” section of the Circular Pattern Definition dialogue box.

4.51: Select the “Reference element” section.

4.52: Click on the x-axis from the display of the part

4.53: Click OK.

Now you should have a disk with20 teeth.

Figure 4.53

Figure 4.48-4.52


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Making a Gear

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4.54: Click on the front face of the part in the workspace

4.55: Click on Sketch command.

4.56: Click on Circle command.

4.57: Draw a circle at the origin (0, 0).

4.58: Change the dimension of the diameter of the circle to 2 inch in the Constraint Definition.

Figure 4.54

Figure 4.57-4.58


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Making a Gear

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4.59: Click on the Exit Workbench icon.

4.60: Select the sketch of the circle that has been completed in the previous step.

Figure 4.60

4.61: Click on the Pocket command from the toolbar at the right of the screen.

4.62: Enter a value of 1 inch for Depth in the Pocket Definition dialogue box.

Figure 4.62


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Making a Gear

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4.63: Click OK.

Now you should have a complete gear.

Figure 4.63

Save your work after generating the gear.

If your shape comes out in the flipped direction, Clicked on the Reverse Directionoption to flip the shape back.


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FAQs

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5. FAQs

5.1: Why do I need to learn CATIA? Can’t I get away with using other CAD software?

Answer: Yes, you can make solid model using any other CAD software such as SolidWorks, Autodesk Inventor, Creo Parametric etc. However, CATIA is the most used CAD software at the

engineering industries. If you already has the basic skill in CATIA, you can be more competitive

in the professional world. It is better to have another important CAD skill under your belt.

5.2: Which companies use CATIA?

Answer: Most companies involved in aerospace and mechanical engineering use CATIA, such

as: The Boeing Company, Bell Helicopter, BAE Systems, BMW, Porsche, Chrysler, Honda,

Toyota, Ford, Tesla Motors, The United States Navy and many more.

5.3: Can I still learn CATIA if I have never used any CAD software before?

Answer: Yes! Although this manual assumes you have previous experience with other CAD

software, and skips some more basic steps which someone brand new to three-dimensional

modeling might need to learn, there is no reason you cannot start the process of learning how to

use a CAD software with CATIA.

5.4: Is there any specific CAD software that is better to have a background in when learning

CATIA through the use of this manual?

Answer: No. Although every software has its differences, all major CAD programs are built

around the same fundamental principles, and it is these shared principles that are assumed to

be known when using this manual.

5.5: I have finished the manual and know the basics of CATIA. Now what?

Answer: Experiment with CATIA on your own. Once you know the basic commands, the best

way to continue your education with CATIA is to continue to make more challenging projects. As

you continue to work with the software, you will naturally become faster at operating it, and will

learn more of its functions as time goes on.

5.6: How can I access CATIA?

Answer: Many engineering colleges have CATIA installed on the computers in their computerlabs already. If your school does not, you can purchase a copy for $99.00 from the

Dassault Systemes at this address:

http://academy.3ds.com/software/catia/catia-v5-student-edition/.

You can follow this link for a guide on how to install the program on your computer:

http://academy.3ds.com/fileadmin/files/shop/CATIA-SE-InstallationGuide.pdf.


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References

6. References

CATIA | Shape the world we live in. (n.d.). Retrieved April 9, 2015, from:

http://www.3ds.com/products-services/catia/

[CATIA logo]. Retrieved March 29, 2015, from: http://commons.wikimedia.org/wiki/File:DS-

CATIA-Logo.png

[Picture of caution sign]. Retrieved March 29, 2015, from:

https://www.iconfinder.com/icons/10375/alert_caution_exclamation_exclamation_mark_s

ign_triangle_warning_icon#size=48

[Picture of floppy disk]. Retrieved March 29, 2015, from:

https://www.iconfinder.com/icons/103863/disk_floppy_save_icon#size=128

[Picture of light bulb]. Retrieved March 29, 2015, from:https://www.iconfinder.com/icons/3474/idea_light_bulb_tip_icon#size=128

[Picture of note pad]. Retrieved March 29, 2015, from:

https://www.iconfinder.com/icons/3474/idea_light_bulb_tip_icon#size=128

how to make a box and gear with catia

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