Edu Cat en v5f Ff v5r17 Lesson04 Toprint

5/21/2018 Edu Cat en v5f Ff v5r17 Lesson04 Toprint

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CATIA V5 Fundamentals - Lesson 4: Additional Features

Copyright DASSAULT SYSTEMES 4-1

CopyrightDASSAULTSYSTEMES

Case Study: Additional Features

Design Intent

Stages in the Process

Advanced Sketcher Tools

Multi-profile Pads and SketchesReference Elements

Revolved Features

Shelling

Thin Features

Lesson 4: Additional FeaturesIn this lesson, you will learn how to create additional CATIA features.

Duration: Approximately 0.5 day

Lesson content:

Lesson Content


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Co

pyrightDASSAULTSYSTEMES


The case study for this lesson is the Handle Block used in the Drill Press assembly shownbelow. The Handle Block is part of the Handle Mechanism sub-assembly. This case studyfocuses on creating features that incorporate the design intent of the part. The HandleBlock will consist of shafts, grooves, multi-profiles, fillets, chamfers, and a shell feature.



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Design Intent (1/2)

XY plane

The Handle Block must meet the followingdesign intent requirements:

The top portion and bottom portions of themodel must be created as separate features.

The top portion of the model will be created

as a shaft, the bottom section will be createdas a multi-pad.

The holes must created at an angle to theXY plane.

Create the holes on the shaft surface andaligned to a user-defined plane. The plane iscreated at an angle to the XY plane.Creating the holes on a user-defined plane

allows the angle to be changed as required.This gives more flexibility in the holeplacement.



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Design Intent (2/2)

X-section of handle block

The Handle Block must meet the followingdesign intent requirements (continued):

The model must be hollow and have auniform thickness of 3mm, except the end,which must have a thickness of 1mm.

The Shell option will hollow out the model asrequired.

The holes are normal to the sides of thehandle block.

The holes must be created on the surface of

the handle block. The holes will then be

extruded normal to the handle block surface.


Although shelling thismodel does notrepresent a real worldapplication, it was doneto demonstrate theshelling operation.


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Stages in the Process

Use the following steps to create the handle block:

1. Create feature profiles.

2. Create multi-profile sketch features.

3. Create reference geometry.

4. Create shaft and groove features.

5. Shell the model.



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Step 1: Create Feature ProfilesIn this section, you will learn aboutadditional sketch tools.

Use the following steps tocreate the handle block:

1. Create feature profiles.2. Create multi-profile sketch

features.

3. Create reference geometry.4. Create shaft and groove

features.5. Shell the model.

Step 1: Create Feature Profiles


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Additional Sketcher Tools

Project 3D elements

Re-limitation

Trans-formations

Axis Creation

Lesson 2 introduced basic Sketcher tools andthe Sketcher environment. This lesson willintroduce advanced Sketcher tools.

Sketcher includes the following additional tools:

Axis creation tool

Re-limitation tools

Transformation tools

Project 3D element tools

In addition, you will, you will learn how toanalyze a sketch using the Sketch Analysis

tool.



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Creating an Axis1

23

4

An axis can be used as a reference to createrevolved features, such as shafts and grooves(discussed later in this lesson). The sketchedprofile is revolved about it.

An axis can also be used to create symmetrical

sketched elements inside the Sketcherworkbench.

Use the following steps to create an axis:

1. Select the Axis icon.

2. Left mouse click to create the start point for

the axis.3. Left mouse click again to create the end

point.

4. Using the shaft command on the profilesketch, CATIA produces a shaft using thedefined axis.


Axes cannot beconverted intoconstruction elements.


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Dimensioning to an Axis1

2

3

4

5

You can define diameter and radiusdimensions to an axis. This is useful whencreating the profile sketches for revolvedfeatures (discussed later in this lesson).

Use the following steps to create aRadius/Diameter dimension to an axis:

1. Select the Constraint icon.

2. Select the sketched element.

3. Select the axis.

4. Right mouse click and clickRadius/Diameter.

5. Left mouse click to place the dimension.



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Re-limitation Tools

A

B

C

D

E

Re-limitation tools trim or extend existing sketchedgeometry. They can be found in the Re-limitationtoolbar, which is a flyout menu in the Operationtoolbar.

Available re-limitation tools include the following:

A. Trim

B. Break

C. Quick Trim

D. Close

E. Complementary Angle



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Re-limitations

Creates the complementary arc.

Closes the selected arc.

Trims an intersected element.

Breaks a curve at a selected breakpoint.

Trims two curves. Keep the part of thecurves you selected. This option canalso be used to extend to elements.

Complement

Close

Quick Trim

Break

Trim

Tool Geometry Description



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Trim OptionsBefore

First

Element

SecondElement

B A

Once the Trim tool is selected, the Sketch Tools

toolbar expands to display two modes for trim:

A. The Trim All Elementsmode trims both

selected elements.B. The Trim First Elementmode trims only the

first selected element; the second elementis left unchanged.



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C

opyrightDASSAULTSYSTEMES

Quick Trim OptionsBefore

A

B

C

Once the Quick Trim tool is selected, theSketch Tools toolbar expands to displayseveral modes for quick trim:

A. The Break and Rubber Inmode removes a

selected portion of an element up to itsintersection with other elements.

B. The Break and Rubber Outmode keepsthe selected portion of an element up to itsintersection with other elements.

C. The Break and Keepmode keeps theentire elements but breaks the element at

the intersection with other elements.



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C


Transformation Tools

A

B

C

D

E

F

Transformation tools are used to modifyexisting sketcher geometry. They can also beused to create a duplicate of the existingsketcher geometry.

Transformation tools are found in theTransformation toolbar, which is a flyout menuin the Operation toolbar. AvailableTransformation tools include the following:

A. Mirror

B. Symmetry

C. Translate

D. Rotate

E. Scale

F. Offset



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C


Mirror and Symmetry Options

2a 2b

1

3

Result of Mirror Result of Symmetry

Both the Mirror and Symmetry optionsmirror geometry about an axis. The Mirroroption creates a mirrored copy of theselected geometry, while the Symmetryoption simply mirrors the originalgeometry without creating a copy.

Use the following steps to use the Mirrorand Symmetry tools:

1. Select the geometry to mirror.

Use the key to select multipleitems.

2. Select the tool.

a. Mirror

b. Symmetry

3. Select the symmetry axis.



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C


Translation (1/2)

1

2

3

4

5

The Translation tool moves the selectedgeometry along a translation vector.

Use the following steps to translate geometry:

1. Select the entities to move.

2. Select the Translate tool.3. Select the Duplication mode option.

When the Duplication mode option isselected, the original geometry isunchanged and a copy of the geometryis created in the new location. You canalso create multiple instances, which will

have an equal distance between them. Inthis example, two instances are created.

4. If in duplicate mode, specify constraintconditions.

You may choose to keep all internalconstraints, and/or all externalconstraints.

5. Select a point on the screen to act as thestart point.


External constraints:Constraints between aselected element andother elements in thesketch.

Internal constraints:Constraints on aselected element orbetween a group ofselected elements.


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C


Translation (2/2)

7

6

Use the following steps to translate geometry(continued):

6. Optionally, enter a distance value in thelength field, and select OK.

7. Move the start point on the screen. If no

distance has been entered (step 6), youcan place the selected elements anywhere.If a distance has been applied and OKselected, you are only defining the

direction.

8. Left mouse click to place the geometry.

8


The Snap Mode optionallows you to enter avalue, then when youdrag the mouse ittranslates at setincrements.


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C


Rotation (1/2)

1

2

3

4

5

The Rotate tool lets you rotate selectedsketched element(s) about a point.

Use the following steps to rotate geometry:

1. Select the entities to rotate.

2. Select the Rotate tool.3. Select the Duplication mode option.

When the Duplication mode option isselected, the original geometry is

unchanged and a copy of the geometry iscreated in the new location. You can createmultiple instances, which will have an equal

distance between them. In this example,one instance is created.

4. If in duplicate mode, specify ConstraintConservation. If selected, all internalconstraints will be maintained.

5. Select a point on the screen to act as thecenter of rotation.


Internal constraints:Constraints on aselected element orbetween a group ofselected elements.


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C


Rotation (2/2)

6

7

8

Use the following steps to rotate geometry(continued):

6. Select a point on the screen to define areference line for the angle.

7. Enter a value in the Angle field or move the

mouse to rotate the elements.8. Select OK or left click on the screen to

complete the rotation.


The Snap Mode optionallows you to enter avalue, then when youdrag the mouse itrotates at setincrements.


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C


Scale (1/2)

1

2

3

4

The Scale tool lets you resize the selectedsketched element(s).

Use the following steps to scale sketchedelement(s):

1. Select the entities to scale.2. Select the Scale tool.

3. Select the Duplication mode option.

When the Duplication mode option isselected, the original geometry isunchanged and a copy of the geometry iscreated in the new location.

4. If in duplicate mode, specify Conservationof the constraints. If selected, all

constraints will be maintained, butconverted into reference dimensions.


Reference dimensionscan be converted backinto standarddimenisons by doubleclicking on thedimension and clearingthe Reference optionfrom the Constraint

definition window.


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C


Scale (2/2)

5

6

7

Use the following steps to scale sketchedelement(s) (continued):

5. Select a point on the screen to act as thescaling center point.

6. Enter a value in the Scale field or move themouse to scale the elements.

7. Select OK or left mouse click on the screento complete the scaling.


Reference dimensionscan be converted backinto standarddimensions by doubleclicking on thedimension and clearingthe Reference optionfrom the Constraint

definition window.

The Snap Mode optionallows you to enter avalue, then when youdrag the mouse itrotates at setincrements.


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C


Offset Propagation Modes

C

B

AThe Offset tool lets you offset one or moresketched elements. Once the Offset tool isselected, three propagation modes becomeavailable from the Sketch Tools toolbar:

A. In No Propagationmode, only the selectedelement(s) is offset.

B. In Tangent Propagationmode, the selectedelement(s) and all elements tangent to itare offset.

C. In Point Propagationmode, the selectedelement(s) and all elements that form a

chain with it are offset.



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Offset (1/2)

1

2

3 4

5

Use the following steps to offset sketchedelement(s):

1. Select the sketched element(s) to offset.

2. Select the Offset icon.

3. Select the Propagation mode.4. Select the Both sides icon if you would like

the element offset on both sides of theoriginal.

5. Enter number of instances. Each instancewill be an equal distance from each other.In this example, two instances are created.



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Offset (2/2)

6

8

7

Use the following steps to offset sketchedelement(s) (continued):

6. Move your curser to the side on which youwant to create the offset.

7. Press the key until the Offset fieldhighlights. Enter the offset distance.

8. Press the key to place the offset.



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Project 3D Elements

A

B

C

Several tools are available to project existing3D elements onto the sketch plane. Theseprojected elements can be used as standardsketch geometry, or converted intoconstruction geometry.

3D Projection tools are found in the 3DGeometry toolbar, which is a fly-out menu inthe Operation toolbar. Available Projectiontools include the following:

A. Project 3D Elements

B. Intersect 3D ElementsC. Project 3D Silhouette Edges



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3D Geometry Elements

1 2 3

1 2 3

1 2 3

Project the silhouette of acylindrical element onto thesketch plane. The axis ofrevolution for the projectedelement must be parallel to the

screen.

Intersect 3D elements with thesketch plane. The selected 3D

elements must intersect thesketch plane.

Project 3D elements onto thesketch plane.

DescriptionGeometryTool

Project 3DElements

Intersect3D

Elements.

Project 3DSilhouetteEdges.


By default, projectedelements are yellow.


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Isolate Projected Elements

By default, projected elements are linked to the 3Dgeometry from which they were created.

You can break this link by right mouse clicking onthe projected element and clicking Mark.x object >Isolate from the pop-up menu. Once the element

is isolated, it will no longer be associative with the3D geometry from which it was projected. Thismeans that modifications to the 3D geometry willnot impact the sketched elements created from it.

Once isolated, the projected geometry converts

into standard sketched elements (e.g., lines,

points, arcs).


Once you have isolatedan element it cannot bere-linked to the 3Dgeometry.


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Sketch Analysis

The Sketch analysis tool can be used to helpresolve any problems with the sketch.

This tool can be used to determine a sketchsconstraint status (i.e., Under-constrained, Iso-constrained, Over-constrained, or Inconsistent),

and where degrees of freedom still exist in thesketch.

The Sketch Analysis tool can also be used tohelp determine if a profile is open or closed.This is useful if you receive an error when trying

to create sketched-based features.


CATIA V5 F d t l L 4 Additi l F t


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Sketch Analysis Window (1/3)

A

B

C

a b c d e

The sketch analysis window has three tabs.Each tab contains information to helpanalyze the sketch.

The Geometry tab is used to determine ifthe sketch geometry is valid:

A. The General Statusarea analyzesseveral elements in the context of theentire sketch.

B. The Detailed Informationarea providesa status and comment on eachgeometric element in the sketch.

C. The Corrective Actionsarea lets youcorrect geometry. You can:

a. Convert an element into aconstruction element.

b. Close an open profile.

c. Erase unwanted geometry.

d. Hide all constraints.

e. Hide all construction geometry.


CATIA V5 F ndamentals Lesson 4 Additional Feat res


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A

B

a b c d e f

The Projections/Intersections tab is used todetermine the status of all projectedelements:

A. The Detailed Informationarea provides astatus and comment on each projected

or intersected element in the sketch.

B. The Corrective Actionarea lets youcorrect geometry. You can:

a. Isolate geometry.

b. Activate or Deactivate a constraint.

c. Erase geometry.

d. Replace 3D geometry.

e. Hide all constraints.

f. Hide all construction geometry.


CATIA V5 Fundamentals Lesson 4: Additional Features


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A

B

C

a b

The Diagnostics tab displays a full diagnosisof all sketched geometry. It provides ananalysis of the sketch as well as informationon individual geometrical elements:

A. The Solving Statusarea provides an

overall analysis of the sketchedgeometry.

B. The Detailed Informationarea provides adescription and status on each constraintand geometric element in the sketch.

C. The Actionarea enables you to:

a. Hide all constraints.b. Hide all construction geometry.




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Performing a Quick Geometry Diagnosis (1/2)

2

3

1

Use the following steps to analyze a sketch:

1. Select the Sketch Solving Status icon.

2. The Sketch Status Definition windowappears. It indicates the overall status ofthe Sketch Geometry. In this case, the

sketch is under-constrained, even thoughthe sketch appears to be all green (iso-constrained).

3. Under- and over-constrained geometricalelements are highlighted on the sketch andin the specification tree.




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Performing a Quick Geometry Diagnosis (2/2)

4

5

6

Use the following steps to analyze a sketch(continued):

4. Select the Sketch Analysis icon in thewindow or in the toolbar.

5. The Sketch Analysis window appears. In

this example, the profile needs to be closedand the point needs to be changed to aconstruction element.

6. Select Close to close the Sketch Analysiswindow.




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Step 2: Create Multi-profile Sketch Features

In this section, you will learn how tocreate several features using onesketch.


1. Create feature profiles.

2. Create multi-profilesketch features.






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Multiple Profiles

Sketch

A B

Multi-profile sketches are sketches that containmore then one closed profile. This gives thebenefit of quickly creating multiple featuresusing only one sketch. Therefore, if the sketchis removed, the corresponding features are alsoremoved. This method is not recommended if

the sketched profiles are complicated, becauseediting all the individual profiles can be difficultwhen they are within one sketch.

Until now, you have used multi-profile sketchesto create multiple pockets using a single pocketfeature. Multi-profile sketches can also be used

to create the following:

A. Multi-pads/pockets

B. Sub-Elements of a Sketch




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Multi-Pads/Pockets (1/2)

6

3

4

5

2

1Multi-pads and pockets are features that createseveral pads/pockets in one operation. Thesetools require a sketch with at least two closedprofiles that do not intersect. Consider usingthese tools as a fast way to create multiplefeatures.

Use the following steps to create a multi-pad:

1. Create a sketch containing at least twoclosed profiles.

2. Highlight the sketch and select the Multi-pad or Multi-Pocket icon. In this example,

Multi-Pad is selected.3. Highlight the first extrusion domain. Enter a

depth value for the closed profile.

4. Repeat step 3 for each extrusion domain.

5. Select OK to create the Multi-pad.

6. The Multi-pad is one feature in thespecification tree.




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Multi-Pads/Pockets (2/2)

1

3

2

5

Like standard pads and pockets, multi-pad/pockets can be extruded in two directions.

Use the following steps to extrude the multi-pad in a second direction:

1. Select More>>.

2. Highlight extrusion domain. In thisexample, Extrusion domain.5 is extruded intwo directions.

3. Enter the second depth for the profile.

4. Repeat step 2 for each extrusion domain.

In this example, only Extrusion domain.5 isextruded in two directions.

5. Select OK to complete the feature.




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Solving Ambiguity for Multi-Pads/Pockets

Careful thought should be given to the profiles created in the sketch when they are usedto define a Multi-Pad/Pocket. The profiles cannot intersect and must form a closed loop;otherwise, you will receive a feature definition error. Use the Break tool in the Sketcherworkbench to create proper profiles if necessary.

For example, two profiles are created as shown within the same sketch. If the shared line

between the two profiles is created as one geometric element, the multi-feature fails. Thetop profile does not form a closed loop. By breaking the shared line into two separatesegments, the top profile is now closed.


Entering a negativevalue in the Length fieldwill create the pad in theother direction.



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Sub-Elements of a Sketch (1/2)

2

1

3

In some cases, you may need to create afeature that uses only one profile of a multi-profile sketch. This is done through the Sub-Elements option. This tool lets you extract onlythe profile you need from the sketch. Becauseseveral features can be based on the same

sketch, deleting or modifying the sketch willaffect all features associated with it.

Use the following steps to use a sub-elementof a sketch:

1. Access the feature creation window (in thisexample, a Pad feature). Do not highlight

the sketch before selecting the icon.

2. Right mouse click on the Profile Selectionfield and click Go to Profile Definition.

3. Select Sub-elements.




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Sub-Elements of a Sketch (2/2)

4

5

6

7

Use the following steps to use a sub-elementof a sketch (continued):

4. Select an element on the required profile.All entities that are part of the same loop asthe selected geometry highlight.

5. Select OK to return to the feature definitionwindow.

6. Notice the Profile field now says complex.Complete the feature definition.





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Solving Ambiguity for Sub-Elements (1/2)

1

24

3

If you select a multi-profile sketch beforeselecting the feature tool, an error appears,indicating profile ambiguity. This is becausemultiple profiles are contained within the sketchand CATIA is unsure how to create the feature.

Use the following steps to solve the error:

1. Select Yes to the error window.

2. Right mouse click on the Profile field and clickGo to Profile definition.

3. Highlight the geometry in the selection window4. Select Remove.




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Solving Ambiguity for Sub-Elements (2/2)

6

57

Use the following steps to solve the error(continued):

5. Select Add.6. Add the correct profile.7. Select OK to return to the feature definition

window.8. Complete the definition and select OK.




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Exercise 4A

Recap Exercise

15 min

In this exercise, you will create a multi-pad feature and two pocketfeatures using only sub-elements of a sketch. You will use some of theadditional sketcher tools you have learned in this lesson to completethe exercise. Detailed instruction for this exercise is provided.

By the end of this exercise you will be able to:

Create a multi-profile sketch

Create a multi-pad feature

Create a pocket using a sub-element of a sketch

Use the Re-limitation, Projection, andTransformation tools in the Sketcher workbench

Exercise 4A



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Exercise 4A (1/16)

1e

1d

2c

1. Create a new part.

Create a new part named Ex4A.CATPart.

a. Click File > New.

b. Select Part.

c. Select OK.

d. Enter [Ex4A] as the part name.

e. Select OK.

2. Create a multi-profile sketch.

Create a sketch that contains more than oneclosed profile. You will use this sketch tocreate a Multi-pad in a later step.

a. Select the YZ plane.

b. Select the Sketcher icon.

c. Create the rectangle as shown. Make itsymmetric about the ZX plane.

Exercise 4A



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Exercise 4A (2/16)

2d

2e

2. Create a multi-profile sketch (continued).

d. Create a profile as shown. The profile

contains two lines and a tangent arc.Ensure the lines are coincident with the topline of the rectangle and symmetric about

the ZX plane. Make the center of the arccoincident with the ZX plane.

e. Create a circle with the center coincidentwith the center of the arc.

Exercise 4A



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Exercise 4A (3/16)

2f

2. Create a multi-profile sketch (continued).

f. Dimension the sketch as shown.

g. Exit Sketcher.

Exercise 4A



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Exercise 4A (4/16)

3c

3b

4b

3. Create a multi-pad feature.

Create a multi-pad feature using the sketchcreated in the last step.

a. Highlight the sketch.

b. Select the Multi-Pad icon.

c. Read the error and select OK.

d. The error indicates that the sketch is notvalid. What is the problem?

e. Cancel the multi-pad creation by selecting

the Multi-Pad icon again.

4. Correct the sketch.

The sketch is not valid because the top lineof the rectangle is one piece and needs to

be shared by two profiles. It is not possibleto create the top profile using this sketchas it is.

a. Double-click on the sketch to edit.

b. Select the Break icon.

Exercise 4A



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Exercise 4A (5/16)

4c

4d

4f

4g

4e

4. Correct sketch (continued).

c. Select the top line of the rectangleas the line to break.

d. Select one of the angled lines asthe breaking element.

e. Select the Break icon again.f. Select the top line of the rectangle

near the other angled line.

g. Select the other angled line as the

breaking element.

h. The line now consists of threeseparate entities. The top profile

can now be constructed.i. Exit the Sketcher workbench.

Exercise 4A



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Exercise 4A (6/16)

5b

5c

5d

5. Create multi-pad.

Now that the sketch is correct. Create themulti-pad feature.

a. Highlight the sketch.

b. Select the Multi-Pad icon.

c. Select the first domain. The circle highlights

on the model.d. Enter a depth of [20mm].

Exercise 4A



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Exercise 4A (7/16)

5e

5f

5. Create multi-pad (continued).

e. Select the next profile in the window. The top profile highlights on the screen.

f. Enter a depth of [10mm].

Exercise 4A



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Exercise 4A (8/16)

5g

5h

5i

6a

5. Create multi-pad (continued).

g. Select the final profile in the window.The rectangular profile highlights.

h. Enter a depth of [20mm].

i. Select OK to complete the feature.

6. Create a multi-profile sketch.

Create a multi-profile sketch that will be

used to create separate pocketfeatures.

a. Select the top face of the rectangleand access the Sketcher workbench.

Exercise 4A



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Exercise 4A (9/16)

6b

6c

6d

6e

6e

6. Create a multi-profile sketch(continued).

b. Create an elongated hole as shown.

c. Select the 3D geometry edge asshown.

d. Select the Offset icon.e. Move the curser toward the center of

the model. This indicates the directionof the offset.

f. Press the key several timesuntil the Offset field is highlighted inthe Sketch Tools toolbar. Enter an

offset of [5mm].

Exercise 4A



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Exercise 4A (10/16)

6g 6h

6i


g. Press the key to create theoffset geometry. Notice that the offsetline is yellow. This indicates that it is

projected from 3D geometry.h. Offset the other 3D geometry edges

as shown.

i. Offset the edge of the circular pad[3mm].

Exercise 4A



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Exercise 4A (11/16)6j

6k

6l

6m


j. Select the Trim icon.

k. Select Trim All Elements from theSketch tools toolbar.

l. Select the first edge in the area to bekept.

m.Select the second edge in the area tobe kept. The entities are trimmed.

Exercise 4A



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Exercise 4A (12/16)

6n

6o


n. Repeat the trim for the otherelements.

o. Create a circle that is concentric with

the circular pad.p. Exit the Sketcher workbench.

Exercise 4A



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Exercise 4A (13/16)

7b

7d

7e

7f

7. Create pockets.

Use the sketch created in the last step tocreate two pocket features that cutthrough all material. The third profile willbe used in a separate feature.

a. Select the sketch created in step 6.

b. Select the Pocket icon.c. All of the profiles highlight. In this

exercise, two of the profiles are to have

different depths the third profile is tohave a different depth.

d. Right mouse click on the ProfileSelection field and click Go to Profile.

e. Highlight Sketch.2 in the window.f. Select Remove.

Exercise 4A

St d t N t



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Exercise 4A (14/16)

7g

7h

7i

7j

7k

7l

7. Create pockets (continued).

g. Select Add.

h. Select the elongated hole profile.

i. Select the circle profile.

j. Select OK.

k. Select a depth of Up to Last.

l. Select OK.

Exercise 4A

Student Notes:



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Exercise 4A (15/16)

8c

8d

8e

8. Create pocket.

Use the sketch created in step 6 tocreate the final pocket feature.

a. Show Sketch.2 but do not select it.

b. Select the Pocket icon.

c. Right mouse click on the Profile

Selection field and click Go toProfile definition.

d. Select the center profile.

e. Select OK to the Profile Definitionwindow.

Exercise 4A

Student Notes:



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Exercise 4A (16/16)

8g

8f

8h

8i

8. Create pocket (continued).

f. Select a depth of Up To Surface.

g. Select the surface shown.

h. Enter an offset of [5mm].

i. Select OK.

j. Hide Sketch.2 again.

9. Save and close the file.

Exercise 4A

Student Notes:


E i 4A R


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Student Notes:



Exercise 4A: Recap

Create a multi-profile sketch

Create a multi-pad

Create pockets using a sub-

elements of a sketch

Use re-limitation andtransformation tools in theSketcher workbench

Exercise 4A

Student Notes:


Exercise 4B


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Exercise 4B

Recap Exercise

15 min

In this exercise, you will open an existing part that contains a multi-profile sketch. You will use this sketch to create several features. High-level instruction for this exercise is provided.


Problem-solve a sketch

Use the Sketch Analysis tool

Create a pad using a sub-element of a sketch

Create a multi-pocket

Exercise 4B

Student Notes:


Exercise 4B (1/7)


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Exercise 4B (1/7)

3

1

2

1. Open Ex4B.CATPart.

Open an existing part file.

2. Create multi-pad feature.

Create the multi-pad feature using thesketch given. An error message

appears, indicating that the sketch isnot valid. Cancel the Multi-Padcreation.

3. Edit the sketch.

Access the Sketcher workbench for

Sketch.1 to investigate the sketch.

Exercise 4B

Student Notes:


Exercise 4B (2/7)


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Exercise 4B (2/7)

4

5

4. Use the Sketch Solving Status Tool. Use the Sketch Analysis tool to

investigate what is wrong with the sketch.Al though the sketch appears to be allgreen (Iso-constrained), the status of the

sketch is actually under-constrained.Note the highlighted points.

5. Access the Sketch Analysis tool.

Use the Sketch Analysis tool to furtherinvestigate the sketch.

Exercise 4B

Student Notes:


Exercise 4B (3/7)


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Exercise 4B (3/7)

8

6

7

6. Review the geometry.

Select the Geometry tab. The sketchcontains two open profiles and anisolated line.

7. Remove the constraints from the

display. To simplify the display, select the Hide

Constraints icon.

8. Resolve the open profile.

Select the inside open profile and use

the Close Opened Profile icon toresolve the issue.

Exercise 4B

Student Notes:


Exercise 4B (4/7)


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Exercise 4B (4/7)

9

9. Resolve the isolated line.

Highlight the isolated line in the window. Notewhere it is located in the model. This line shouldbe a construction element. Use the Set inConstruction Mode icon to convert the point.

Exercise 4B

Student Notes:


Exercise 4B (5/7)


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Exercise 4B (5/7)

10

10. Review the second open profile.

Select the outer open profile from thewindow. Notice the area in the centerat the top. Zoom in; notice the line isnot a single entity but two entities.This is not correct. The Close

Opened Profile option could be usedto resolve this issue; however, the linewould still be two separate entities.Instead, exit the Sketch analysis tooland resolve the issue using re-limitation tools.

Exercise 4B

Student Notes:


Exercise 4B (6/7)


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Exercise 4B (6/7)

11

12

11. Resolve the second open profile.

Delete one of the top lines. Use theTrim tool to extend the remaining line.Remember to add tangency betweenthe line and the arc.

12. Re-analyze the sketch. Return to the Sketch solving status

window. The sketch should now beiso-constrained.

Exercise 4B

Student Notes:


Exercise 4B (7/7)


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Exercise 4B (7/7)

13

13. Exit sketcher and create the multi-padfeature as shown.

14. Save and close the file.

Exercise 4B

Student Notes:


Exercise 4B: Recap


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p

Problem-solve a sketch

Use the Sketch Analysis tool

Use re-limitation tools

Create a multi-pad feature

Exercise 4B

Student Notes:


Exercise 4C


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s

Recap Exercise

15 min

In this exercise, you will create a part that contains two features, a multi-pad, and a multi-pocket. You will use the tools learned in this lesson tocomplete the exercise with no detailed instruction.


Create a multi-pad


Exercise 4C

Student Notes:


Exercise 4C (1/2)


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1

2

1. Multi-pad

2. Multi-pocket

You need to create the following features:

Exercise 4C

Student Notes:


Exercise 4C (2/2)


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1. Create the following part.

Exercise 4C

Student Notes:


Exercise 4C: Recap


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Create a multi-pad


Exercise 4C

Student Notes:


Step 3: Create Reference Geometry


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p y

In this section, you will learn how tocreate reference elements (i.e., points,lines, and planes).



features.

3. Create reference geometry.4. Create shaft and groove features.

5. Shell the model.


Student Notes:


Reference GeometryDetermining which


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In the Part Design workbench, you have theability to create points, lines, and planesoutside of the Sketcher environment. Theseelements are called reference (or 3Dwireframe) geometry.

Depending on how the part was initially

created, these elements can be representedin the specification tree in two ways. If theEnable hybrid design option is selectedCATIA will place these features within themain PartBody. If the Enable hybrid design

option is cleared wireframe elements areinserted under a group called a Geometrical

set. Geometrical sets contain only 3Dwireframe and surface elements, but no solidgeometry.


Determining which

option to create yournew part with isdependent on how yourcompany organizes andcontrols its data.

Wireframe geometrycan be used to create

additional solidgeometry. For example,user-defined planes areoften created when noexisting sketchersupport is available.

If the Create a geometryset option is selected,an empty Geometry setis created with the newpart.

If the Enable hybriddesign option is cleared

when creating a newpart, a geometrical setis added to thespecification tree whenthe first Wireframeelement is created.

Student Notes:


Accessing the Reference Elements Toolbar


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The toolbar is located at the bottom of the toolbarson the right-hand side of the screen. You mayneed to move other toolbars to view it.

If you cannot locate the toolbar, it may be turnedoff. To turn on the toolbar, click View > Toolbars

> Reference Elements (Extended).


Student Notes:


Power Input Line


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Instead of selecting the icons, you can use thepower input line to access the 3D wireframe tools.

Enter:

[c:plane] to create a plane [c:point] to create a point [c:line] to create a line

The command can be used for many tools. It isa good way to launch functions when youcannot find the icon. To view the command,hover the mouse cursor over the icon.

For example, placing the cursor over the Lineicon displays c:Line beside the power input line.


Student Notes:


Points


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1

2

3

4

5

Points are used to mark a location on a model.They can be used as a basis for creatingadditional features. Use the following steps tocreate a point:

1. Select the Point icon.

2. Select the Point Type from the pull-down menu.

Many types of points can be created. The requiredfields vary depending on the selected type. In thisexample, you create a Coordinates point type.

3. Enter values as required. For a co-ordinate point,the X, Y, and Z distances from the referencepoint are required.

4. Select OK to create the point.

5. The point is added to the specification tree underthe Geometrical set.


Student Notes:


Lines (1/2)1


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2

3

Lines are created for many purposes, they canbe used to define the direction for additionalgeometry (solid and wireframe), or as an axisfor a revolved feature.

Use the following steps to create a line:

1. Select the Line icon.2. Select the Line Type from the pull-down

menu. Many types of lines can be created. The

required fields vary depending on the

selected type. In this example, you createa line point-point type.

3. Enter values as required. For a Point-Pointline, two points are required.


Student Notes:


Lines (2/2)


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4

5

Use the following steps to create a line(continued):

4. Select OK to create the line.5. The line is added to the specification tree

under the Geometrical set.


Student Notes:


Planes (1/2)1


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2

3

Planes are used to create a planar reference ina specific location. In the Part Designworkbench, they are typically used as sketchsupports in areas where there is no existingsketch support.

Use the following steps to create a plane:

1. Select the Plane icon.2. Select the Plane Type from the pull-down

menu. Many types of planes can be created. The

required fields vary depending on theselected type. In this example, you create

the Offset from plane type.

3. Enter values as required. For an Offset

from plane type, a planar surface or anexisting reference plane is required.


Student Notes:


Planes (2/2)


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4

5

Use the following steps to create a plane(continued):

4. Select OK to create the plane.5. The plane is added to the specification tree

under the Geometrical set.


Student Notes:


Step 4: Create Shaft and Groove Features


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In this section, you will learn how tocreate revolved features that add andremove material.



features.

3. Create reference geometry.

4. Create shaft and groovefeatures.

5. Shell the model.


Student Notes:


Revolved Features (1/2)


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A

B

A revolved feature is created by revolving a 2Dprofile about an axis of revolution.

In the Part Design workbench, you can createtwo types of revolved features:

A. A shaft, which adds material.B. A groove , which removes material.


Student Notes:


Revolved Features (2/2)


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Profile

A

BRevolved features can be revolved between 0and 360.

You can define the following limits:

A. The First anglelimit defines the revolutionangle of the profile around the axis, starting

from the profile position and orientated inthe clockwise direction.

B. The Second anglelimit defines therevolution angle of the profile around theaxis, starting from the profile position andoriented in the counterclockwise direction.


Student Notes:


Axis of Revolution


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The axis of revolution for a revolved feature canbe defined by two methods. The axis can becreated inside the actual sketch containing theprofile using the Axis tool. If the axis is createdinside the sketch, it will be detectedautomatically when defining the shaft or groove.

If you did not create an axis in the sketch, orwant to use a different axis than that defined inthe sketch, you can define it from theShaft/Groove definition window in the Axisselection field. Any linear element in the model(e.g., an edge of existing geometry, a 3D

wireframe line, a line created in a sketch) can

be used.


Student Notes:


Shafts2

A h f i l d k h d b d f

By offsetting the rotation

i f th


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1

3

5

4

6

A shaft is a revolved sketched based featurethat adds material to the model.

Use the following steps to create a shaft:

1. Select the profile.

2. Select the Shaft icon.3. If no axis was created inside the sketch,

select an axis of revolution.

4. Define angle limits.


6. The shaft feature is added to the model.


axis away from theprofile, the resulting partwould be hollow.

Student Notes:


Creating Grooves

G l d f t th t

You can select the

i li it i f th h ft


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1

3

2

4

5

6

Grooves are revolved features that removematerial from existing features by rotating a 2Dprofile around an axis. The axis and the profilecan be created in the same sketch or the axiscan reside outside of the sketch.

Use the following steps to create a Groove

feature:

1. Select the Profile.2. Select the Groove icon.3. If no axis was created inside the profile

sketch, select an axis of revolution. In thisexample, the implicit axis of the cylindrical

feature is selected.4. Define angle limits.5. Select OK to complete the feature.6. The Groove feature is added to the model.


implicit axis of the shaftfeature as the axis ofrevolution by placingyour cursor over theshaft feature andholding the key.The axis will display, leftmouse click to select it.

Student Notes:


Restrictions for Revolved Features (1/2)Not every sketch can be used to create a shaft base feature. The examples shown

display various sketch solutions:

These examples do not

necessarily representh b i f


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display various sketch solutions:

Axis on a profile edge:

Axis outside the profile:

Axis cutting the profile:

Error


necessarily representthe best practice forsketching, as presentedin the sketcher lesson.

Student Notes:


Restrictions for Revolved Features (2/2)Not every sketch can be used to create a shaft

base feature Below are some examples


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base feature. Below are some examplesshowing various sketch solutions (continued):

Open profile:

Open profile and axis outside the profile:

Error


Student Notes:


Exercise 4D

R E i


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Recap Exercise

15 min

In this exercise, you will create a new tool holder part by creating arevolved feature using a point, line, and sketch. A reference plane will

then be used to create an additional feature.


Create reference geometry

Create a shaft feature

Create a groove feature

Use reference geometry to create new features

Exercise 4D

Student Notes:


Exercise 4D (1/10)

1d1 Create a new part

The Reference toolbarmay not be shown.Click View > Toolbars >


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2a

2d

2c

2b

1e

1. Create a new part. Create a new part file.

a. Click File > New.

b. Select Part from the list of documenttypes.

c. Select OK.

d. Leave the default name, clear the

Enable hybrid design option.e. Select OK.

2. Create a point.

Create a point by entering coordinates.This point will be used as a reference tocreate a line The line is then used as the

axis of revolution for a shaft feature.a. Select the Point icon. If you cant find

the icon, enter [c:point] in the powerinput line.

b. Change the point type to Coordinates.

c. Enter [4] for the Y value and leave allother inputs as default.

d. Select OK to create the point.

Exercise 4D

Click View > Toolbars >Reference Elements(extended) to displaythe toolbar. The toolbarwill have a checkmarkbeside it in the menu if itis displayed.

Student Notes:


Exercise 4D (2/10)

3. Create a line.


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3f

3e

3d

3c

3b

3a

3. Create a line. Create a line in the Z axis direction using

the created point.

a. Select the Line icon. If you cant find theicon, enter [c:line] in the power inputline.

b. Change the Line type to Point-

Direction.c. Select the Point.1 that was created

previously.

d. Right click on Direction and click Z Axis.

e. Select the Infinite End Point option forthe Length Type.

f. Select OK to complete the line.

Exercise 4D

Student Notes:


Exercise 4D (3/10)

4b4. Create a sketch.C t k t h th t ill t th


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4d

4e

4a

4b Create a sketch that will represent the

profile for a tool holder.

a. Right mouse click on the on the PartBodyand select Define in Work Object. Thisensures that any features that are

created are added to the part body and

not the geometrical set.b. Select the Sketcher icon.

c. Select the YZ plane as the sketchsupport.

d. Use the Profile icon in sketcher to createthe lines.

e. Create an axis vertically along the V axis.

Exercise 4D

Student Notes:


Exercise 4D (4/10)

4. Create a sketch (continued).


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4j

4g

4i

4h

4f

( )

f. Select the Constraint icon.

g. Select the top vertical line.

h. Select the axis. Right mouse click andselect Radius/ Diameter from thepop-up menu.

i. Left mouse click to place the diameterdimension.

j. Finish dimensioning and constrainingthe sketch as shown. Ensure that theleft edge of the sketch is aligned tothe V axis.

Exercise 4D

Student Notes:


Exercise 4D (5/10)

5. Create a shaft feature. Create a revolved feature using the


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CopyrightDASSAULTSYSTEMES 5e

5b

5c

5d

5a

5c

Create a revolved feature using thesketch and line created previously.

a. Select the Shaft icon.

b. Select Sketch.1 previously created asthe profile selection.

c. Select inside the Axis Selection field

and select Line.1.d. Make sure the first angle is [360deg]

and the second angle is [0deg].

e. Select OK to complete the shaft.

Exercise 4D

Student Notes:


Exercise 4D (6/10)

6. Create a groove feature. Create a sketch that will be used as the


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6c

6d6d

6c

Create a sketch that will be used as theprofile for a groove on the tool holder.

a. Select the Sketcher icon.

b. Select YZ plane as the sketch support.

c. Use the Project Silhouette Edges toolto project the side surface of the shaft.

d. Select both projected edges andconvert them to construction entities.

Exercise 4D

Student Notes:


Exercise 4D (7/10)

6. Create a groove feature (continued).


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6g

6i

6h

6ee. Sketch and dimension a square as shown.

f. Exit the sketch.

g. Select the Groove icon.

h. Select Sketch.2 as the profile and Line.1as the axis.

i. Select OK to complete the groove.

Exercise 4D

Student Notes:


Exercise 4D (8/10)7a

7. Create a reference plane. Create an offset reference plane that will be


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7e

7d

7b

Create an offset reference plane that will beused as the sketch support for a new sketch.

a. Select the Plane icon. If you cannot find theicon, enter [c:plane] in the power input line.

b. Select Offset from plane as the Planetype.

c. Select the YZ plane as the reference plane.d. Enter [60mm] as the offset.

e. Select OK to complete the plane.

Exercise 4D

Student Notes:


Exercise 4D (9/10)

8. Create two pocket features. Create two pocket features using Plane.1 as


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8c

p gthe sketch support.

a. Select the Sketcher icon.

b. Select the Plane.1 as the sketch support.

c. Sketch and constrain a rectangle as shown.

d. Exit the Sketcher workbench.

Exercise 4D

Student Notes:


Exercise 4D (10/10)

8g8. Create two pocket features (Continued).


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8j

8i

8h

g

e. Select the Pocket icon.

f. Select the sketch just created as the profile.

g. Enter [16mm] as the pocket depth.

h. Select OK to complete the pocket.

i. Create another pocket with the same Sketch.

Enter the First Limit Depth as [104mm] andthe Second Limit as [-114mm] for the secondpocket.

j. Select OK to complete the second pocket.

9. Save and close the part.

Exercise 4D

Student Notes:


Exercise 4D: Recap

Create a reference point and line


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Create a reference plane

Create features on reference plane

Exercise 4D

Student Notes:


Exercise 4E

Recap Exercise


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15 min

In this exercise, you will create a new part. Using shafts, grooves,and multi-pocket features, you will construct a pulley. High-levelinstruction for this exercise is provided.


Create a shaft Create a groove

Create a multi-pad

Exercise 4E

Student Notes:


Exercise 4E (1/3)

1. Create a new part file. Create a new part file called

[E E CATP ]


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2

[Ex4E.CATPart].

2. Create a shaft feature.

Use the dimension shown to construct a

shaft feature.

Exercise 4E

Student Notes:


Exercise 4E (2/3)

3. Create a groove feature. Use the dimensions shown to create a groove feature.

R b t th t f ti t l h ti


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Remember to use the transformation tools when creatingseveral identical profiles within one sketch. All profiles havethe same internal dimensions.

Exercise 4E

Student Notes:


Exercise 4E (3/3)

4. Create a multi-pocket feature. Use the dimensions shown to create a

lti k t f t


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4

multi-pocket feature.

5. Save and close the model.

Exercise 4E

Student Notes:


Exercise 4E: Recap


Cr t gr f t r


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CopyrightDASSAULTSYSTEME

S


Create a multi-pocket feature

Exercise 4E

Student Notes:


Exercise 4F

Recap Exercise


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S

15 min

In this exercise, you will create a part that contains features taught in

this and previous lessons. You will use the tools learned in this lessonto complete the exercise with no detailed instruction.



Create edge fillets

Create internal and external groove features

Create a pocket feature


Create a cone-shaped groove feature

Exercise 4F

Student Notes:


Exercise 4F - Drawing

1. Create the following spool part.


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S

Exercise 4F

Student Notes:


Exercise 4F: Recap


Create edge fillets


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S

Create internal and external groove features

Create a pocket feature


Create a cone-shaped groove feature

Exercise 4F

Student Notes:


Step 5: Shell the Model

In this section, you will learn how tocreate hollow models by using the


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S

Thin and Shell operations.

Use the following steps to

create the handle block:


features.




Student Notes:


Shelling

Shelling a feature hollows out solid geometry. The shellingoperation removes one or more faces from the solid andapplies a constant thickness to the remaining faces. You

l l diff hi k l d f


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S

Shell

Faces to be removed

Different thickness applied

can also apply a different thickness to selected faces.


Student Notes:


Shelling a Part (1/2)

Use the following steps to shell a model wherethe remaining faces have a different thickness:

1 Select the face(s) to be removed

To create a shell featureof constant thickness

skip steps 4-6.

The Outside


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S

1

2

3

4

5

1. Select the face(s) to be removed.

2. Select the Shell icon.

3. Specify a wall thickness.

4. Select in the Other Thickness Faces field.

5. Select the wall(s) that will have a differentthickness.


The OutsideThickness entry addsmaterial to the outsideof the part definition.

Student Notes:


Shelling a Part (2/2)6

7

Use the following steps to shell a model wherethe remaining faces have a different thickness(continued):

To create a shell featureof constant thickness

skip steps 4-6.


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S

8

9

6. To change the thickness of the Other

Thickness faces, double-click thedimension directly on the model, and enterthe value. Take care to select the

dimension associated with the correctdirection.

7. Select OK to the Parameter definition

window.

8. Select OK to the Shell Definition window.

9. The shell feature is added to the model.


Student Notes:


Importance of Feature Order

When shelling a model, considering featureorder is important. The Shell operation hollowsall solid features in a model. If you do not wanta feature shelled it should be created after the

You can re-orderfeatures without deleting

them. The Re-orderoperation will bediscussed in the nextl


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S

a feature shelled, it should be created after theshell operation.

For example, when a feature containing a hole

is shelled, a pipe is created. If a hole was thedesign intent, the shell feature needs to becreated before the hole.


lesson.

Student Notes:


Thin Features (1/2)

A thin feature is created by applying aconstant thickness to a profile. Pads,pockets, shafts, and grooves can all becreated as a thin feature Use the Pad

This feature could havealso be created using

the shell feature, but thismethod requires lessfeatures.


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created as a thin feature. Use the PadDefinition window to define its properties:

A thin feature can be created with aclosed or open profile.

Thickness can be applied to one side orboth sides of the profile.


Student Notes:


Thin Features (2/2)

The definition windows for pads, pockets,shafts, and grooves contain a section fordefining a thin feature. Use the following stepsto create a thin pad:

Select the Neutral Fiberoption to define

thickness symmetricallyfrom the Profile (i.e.,Thickness 1 =Thickness 2)


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1

2

3

4

5

to create a thin pad:

1. Select the Thick option.

2. The window expands to display additionaloptions.

3. Enter the thickness values. Thickness 1defines the inside thickness, and Thickness2 defines the outside thickness.


5. The feature is added to the model.


Thickness 2).

Student Notes:


To Sum Up ...

Using the knowledge learned in this lesson, youshould now be able to create the Handle Block.

You must do the following to create the handle block:


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You must do the following to create the handle block:

Create feature profiles.

Create a multi-profile sketch feature.

Create reference geometry.

Create shaft and groove features.

Shell the model.


Student Notes:


Exercise 4G

Recap Exercise

15 min


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15 min

In this exercise, you will create a happy face stamp from a new part. Youwill use the tools learned in this lesson to create a pad, a fillet, shell,and thin feature. Detailed instructions for this exercise are provided.


Create a shell feature

Create a thin pad

Exercise 4G

Student Notes:


Exercise 4G (1/6)

1. Create a new part.

Create a new part file.

a. Click File > New..

b. Select Part from the list of document


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2f

2c

1d

b. Select Part from the list of documenttypes.

c. Select OK.

d. Accept the default name and selectOK.

2. Create a sketch.

Create a square profile.

a. Select the Sketch icon.

b. Select the XY plane to place thesketch.

c. Select the Rectangle icon and sketchan approximate square as shown.

d. Dimension the square to [100mm] asshown.

Exercise 4G

Student Notes:


Exercise 4G (2/6)3b

3c

3. Create a pad.

Create a pad from the sketch.

a. Select Sketch.1.

b Select the Pad icon


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CopyrightDASSAULTSYSTEM

ES

3d

b. Select the Pad icon.

c. Enter [50mm] as the pad length.

d. Select OK to complete the feature.

Exercise 4G

Student Notes:


Exercise 4G (3/6)4a

4. Create an edge fillet.

Create an edge fillet on all edges of thepad except for the bottom surfaceedges.


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CopyrightDASSAULTSYSTEM

ES

4b

4c

a. Select the Edge Fillet icon.

b. Select the top surface of the pad andthe four vertical edges.

c. Enter [5mm] as the radius.

Exercise 4G

Student Notes:

CATIA V5 Fundamentals - Lesson 4: Additional Fe

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