Tutorial Catia V5

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Notes: CATIA V5 Fundamentals Copyright DASSAULT SYSTEMES 1    C   o   p   y   r    i   g    h    t    D    A    S    S    A    U    L    T    S    Y    S    T    E    M    E    S 1 CATIA V5 Fundamentals CATIA Training Foils Version 5 Release 13 February 2004 EDU-CAT-E-V5F-FF-V5R13

Transcript of Tutorial Catia V5

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    CATIA V5Fundamentals

    CATIA TrainingFoils

    Version 5 Release 13February 2004

    EDU-CAT-E-V5F-FF-V5R13

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    How to Use this Guide?What the student can find in the guide and how to use it during class /after:

    TOCStructure

    Lessons, Introduction screens Skillets conceptual screens Exercises Summary

    Progressive exercises

    Reference to Master Exercises to be completed throughout the week (see EDU-CAT-E-V5F-FX-V5R11 book)

    Looking for info...

    Sending feedback to DS:Contact:

    David GuilbertMail: [email protected]

    Global offer and Complementary material:

    Companion for on the job aid (Electronic support system + refresher + updates)CATIA on-line documentation for task descriptionF1 for contextual help

    Certification ad:

    Getting certified... (www.3dplm.com/certification)

    HowtoUs

    ethisGu

    ide?

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    Table of contents

    Getting Started with CATIA V5 p. 9

    Introduction to the CATIA Sketcher p. 46

    Sketcher Geometry Management p. 56

    Sketcher Geometry Creation p. 58Sketcher Axis Creation p. 68

    Sketcher Geometry Re-limitation and Transformation p. 71

    Sketcher Geometry Modification p. 75

    Sketcher Geometry Management Recommendations p. 78

    Sketcher Geometry Exercises p. 87Sketcher Constraints Management p. 96

    Constraints Creation p. 100

    Modification of Constraints p. 103

    Relations Between Dimensions p. 107

    Sketcher Constraint Management: Recommendations p. 110

    Sketcher Constraints Exercises p. 115

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    Table of contents

    Sketcher Analysis Tools p. 122

    Performing a Quick Geometry Diagnosis p. 124

    Sorting Sketches by their Solving Status p. 127

    Time to Practice p. 133Introduction to Part Design p. 134

    Basic Sketch Based Features p. 141

    Creating Pads p. 146

    Creating Shafts p. 149

    Creating Holes p. 152Creating Pockets p. 155

    Creating Grooves p. 159

    Sketch Based Features Recommendations p. 162

    Sketch Based Features Exercises p. 169

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    Table of contents

    Basic Dressing-Up Features p. 181

    Creating Drafts p. 183

    Filleting p. 186

    Chamfering p. 194

    Threads and Taps p. 197

    Shelling a Part p. 201

    Basic Dressing Up Features: Recommendations p. 204

    Dress-Up Features Exercises p. 210

    Part Design Transformations p. 222

    Duplicating Features p. 224Moving Features p. 229

    Part Design Transformations: Recommendations p. 236

    Transformations Exercises p. 239

    Part Design Modifications p. 248

    Reordering Features p. 250Modifying Features p. 253

    Part Design Modifications: Recommendations p. 259

    Time to Practice p. 263

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    Table of contents

    Introduction to Assembly Design p. 264

    Assembling Components p. 274

    Creating a New Assembly Document p. 276

    Adding Components p. 279

    Assigning Components Properties p. 287

    Saving an Assembly Document p. 291

    Assembly Components Exercises p. 296

    Positioning Components using Constraints p. 302

    Freely Moving Components p. 306

    Defining Assembly Constraints p. 310Updating Assembly Constraints p. 328

    Positioning Components Exercises p. 336

    Analyzing an Assembly p. 342

    Measuring an Assembly p. 343

    Checking for Clash and Clearance p. 350Editing Parts in an Assembly p. 356

    Designing in the Context of an Assembly p. 359

    Smart Move Viewer for Snapping p. 366

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    Table of contents

    Working with Components p. 370

    Deleting Components p. 371

    Duplicating Components p. 375

    Symmetrical Sub-Assemblies p. 382Replacing Components p. 387

    Restructuring Components p. 392

    Reordering Product Structure p. 396

    Time to Practice p. 401

    Introduction to Generative Drafting p. 402Starting a Drawing and View Generation p. 409

    Starting a enerative Drawing p. 412

    Defining the Main Views p. 417

    Additional View Generation p. 429

    Adding Section Views and Cuts p. 430Adding Secondary Views p. 434

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    Table of contents

    Editing Views Layout and Properties p. 440

    Editing Views and Sheet Properties p. 441

    Repositioning Views p. 445

    Modifying Views p. 449

    Modifying of Section Profiles p. 452

    Finalizing the Drawing and Printing p. 459

    Checking for Changes p. 460

    Printing the Drawing p. 463

    Dimensioning and Annotating p. 469

    Dimensioning Introduction and Terminologie p. 470Manual Dimensioning p. 473

    Linear and Angular Dimensions p. 477

    Radius and Diameter Dimensions p. 485

    Chamfer Dimensions p. 488

    Creating Thread Dimensions p. 490Dimension System p. 492

    Time to Practice p. 498

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    Getting Started with CATIA V5

    In this lesson you will learn the main concepts of CATIA V5.

    You will become familiar with the CATIA V5 environment.

    Lesson content:

    Welcome to CATIA V5

    Starting CATIA V5

    CATIA User Interface

    The Workbench Concept

    The Specification Tree

    Manipulating Objects

    Objects Visualization

    Saving and Closing DocumentsDuration:Approximately 0.5 day

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    Welcome to CATIA V

    You will have a brief overview of CATIA V5

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    CATIA V5, the New Generation

    CATIA Version 5 is a completely re-engineered, next-generation family ofCAD/CAM/CAE software solutions for product lifecycle management.

    Using native Windows features and innovative

    technics, Version V5 is as natural to use asworking with the physical model in your hands.

    Improving products through knowledgedriven design.

    CATIA Version 5 combines the power of explicitrules to guide you as an advisor expert in orderto reach optimum design faster

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    Friendly InterfaceCATIA Version 5 has a stunning new interface, and new user-friendly features. It was

    specifically designed to improve your efficiency.

    Specification Tree andCompass to

    accelerate your manipulations...

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    The Windows Philosophy

    Traditional menu bars, standard keyboard

    shortcuts consistent with the Windowsphilosophy,(Ctrl+C,...), Copy-Paste, Drag &Drop..

    OLE integration to share data across

    Windows applications...

    As a Windows application, CATIA V5can simply manage multi-documents:

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    The Action/Object and Object/Action Approaches

    You can work as you like, the order of selection is up to you. You can either:

    First select the object(s) to process,

    then select the operation to perform

    First select the operation to perform,then select the object(s) to process

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    KnowledgeCATIA Version 5 assists you in making correct decisions and reaching optimum

    error free design in a shorter period of time:

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    Starting CATIA V5

    You will learn how to start CATIA V5

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    Starting CATIA Using the Start Menu (PC)

    1

    2

    Click the Start menuand keep the keypressed

    Roll over Program,then to the right Roll over CATIA,

    then to the right

    3

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    Starting CATIA Using the Contextual Menu (PC)

    1

    2Click the right mousebutton MB3 todisplay thecontextual menu

    3

    Roll over New thento the right

    Release the key whenover CATIA Part

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    Starting CATIA V5 Session on Unix Platforms

    First Method: Using a command1. Log on as a user2. Enter the command:

    /usr/DassaultSystemes/BXX/Os_a/Code/Command/catstart

    Where OS_a is : aix_a; hpux_a; irix_a; solaris_a

    XX is : CATIA Version

    Second Method: Using CATIA V5 icon1. Log on as a user2. On desktops (AIX; HP-UX and Sun Solaris), open the

    application Manager

    3 Open the CATIA directory4 Double-Click the CATIA V5 icon

    Third Method: Using Document Icons1. Log on as a user2 Locate the document icon using your File Manager3 Double-Click the located icon to open the document and

    activate the workbench used to create the documentoriginally

    Part Design document icon

    Assembly design document icon

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    CATIA User Interface

    You will learn and practice the basic concepts of CATIA user interface

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    What about CATIA User Interface ?

    Some Key features:

    Multi-document support

    Standard and specific menus & toolbars (File,Edit, Insert...)

    Standard manipulations (Copy-Paste, Drag &Drop, Edit in place...)

    Intuitive (Highlighting, copilot, cursorshapes...)

    Contextual menu (MB3)

    Specification Tree including all technologicalfeatures, constraints, relationships ...

    Workbenches and associated toolbars ...

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    CATIA User Interface

    Menus

    Tree

    Icons to minimize,maximize, or close

    windows

    Toobars of the activeworkbench

    ...

    Double arrowsmean there aremore toolbars.Drag the >> sign to

    move unseentoolbars

    Icon of the activeworkbench (here PartDesign)

    Window ofactivedocument

    Tree scrollbar

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    Menus and ToolbarsToolbars provide a quick access totools which are also available inmenus

    Use the View menuto activate toolbars

    Drag the separatorto move the toolbar

    anywhere

    Click [x] toclose the

    toolbar

    Toolbars that are checked

    are accessible. Others arehidden.

    Double arrowsmean there aremore toolbars. Dragthe >> sign to moveunseen toolbars

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    How to Use Dialog Boxes ?Dialog boxes provide parameters for the definition of features. They are standardizedand easy to use

    Name of the task

    Click OK to confirm

    Click Preview to pre-visualize the result

    Click Cancel to quit the function

    Click the cross to close the dialog box

    Click the question mark and select a field to get helpEx: if you double-click on a hole you will get the Hole

    Definition dialog box

    Select a tab to define particular parameters

    Select an option in the drop down list

    Key in a value or click up and down arrows

    Fields not selectable (locked)

    Select the button to activate the action

    Click the check box to activate the option

    Inactive field

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    The Workbench Concept

    You will learn how to access workbenches

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    Each discipline (Mechanical Design ...) offers a wide range of Products organizedin Workbenches.

    The Workbench Concept

    Mechanical Workbenchesl Part Design To design parts

    l Sketcher To sketch 2D profiles

    l WireFrame & Surface To Enrich existingmechanical part design with wire frame featuresand basic surface features

    l Assembly Design To Easily establishmechanical assembly constraints, automaticallypositions parts and checks assembly consistency

    l Generative & Interactive Drafting ToGenerate drawings from 3D part and assemblydesigns and make pure 2D drawings

    l Sheetmetal Design A very intuitive andproductive environment to design sheet metalparts

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    Accessing a WorkbenchYou can access any standard workbench using the Start menu.

    To access the Assembly Designworkbench,

    Start CATIA, then select theStart menu and chooseMechanical DesignthenAssembly Design

    Assembly DesignWorkbench icon

    Two ways to access a workbench :

    Using the Start menu or Selecting File / New :

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    The Specification Tree

    You will learn different ways to select, manipulate, and view objects using theMouseYou will become familiar with the Specification Tree

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    What About the Specification Tree?CATIA V5 provides you with a generic specification modeler allowing you toview and modify objects (features, sketches, )The hierarchy of features is called the Specification Tree. Its structure varieswith the type of document being edited.

    11

    22

    Design Process:

    Pad.1 before Pocket.1

    Part Number

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    Manipulating the Tree

    Click on + to expand the tree and on tocollapse the tree.

    Expanding/Collapsingthe Tree

    Drag and drop the tree structure with the left

    button of the mouse.

    Moving

    the Tree

    Click anywhere on the tree structure to activate

    or deactivate it.

    Activating/Deactivatingthe Tree

    Click on the F3 key to hide or show the tree.Hidingthe Tree

    DescriptionAction

    Or

    Shift+

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    Manipulating Objects

    You will also learn how to take advantage of the compass to manipulate objects

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    The compass is a powerful tool to move and

    manipulate objects, especially in the Assembly

    Design, Freestyle, and Digital Mockup

    products

    Base of the compass(or privileged plane)Default is XY plane

    The default orientation of the compass

    is parallel to the reference XYZ axis

    system

    The default location of the compass is

    the top right corner of the screen

    When to use it ?

    To Pan, Rotate Geometry in 3D

    To deform surfaces like patches and define cutting

    plane in Freestyle

    To move components in an assembly and in Digital

    Mockup To move and rotate elements in the Sketcher, parallel

    to the sketch plane

    What is the Compass ?

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    Moving Objects with the Compass

    Rotation

    XZ translation X translation Z translation

    1 Select one of the compass axis or plane

    About Z

    About Y

    Translation

    Free rotation (Similar to

    rotating with the mouse)

    Just grab the top point of the

    compass and move it

    Drag the cursor.

    The geometry moves accordingly

    2

    Normal to compass axis

    (Similar to Normal View)

    Just select the desired letter (x, y

    or z)

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    Selecting Objects with the Mouse

    You can either select an object (or several

    objects) geometry or its corresponding feature in

    the tree.

    Selecting the geometry will highlight the tree

    feature(s) and vice versa

    Simple Selection :

    Multi-Selection:

    Selecting Geometry or Tree Features :

    To select an object you press the left button of the

    mouse, also called mouse button 1 (MB1)

    The standard way: [Ctrl] key

    Trapping objects:

    +

    +

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    Moving Objects with the Mouse

    cursor

    Panning

    Rotating

    Zooming

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    Objects Vizualisation

    You will learn how to hide and redisplay objects, and the different render style ofCATIA V5

    From Visible ...

    ... To Invisible Space

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    When to Hide Elements?

    You will hide elements to clarify the visualization temporarily, in 3D or in the Sketcher, orto get rid of construction elements but still keep them accessible

    Construction elements

    Sketcher elements

    Examples

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    You can hide construction elements, and 3D elements seen in the Sketcher... for bettervisualization and redisplay them later

    Result: the selected elements are

    hidden. The display is clearer...

    Hiding/Displaying Elements

    You can quickly hide element(s)by right clicking them in the tree(right mouse button) and selecting

    the Hide/Show option in thecontextual menu

    ... and icons of hidden elementsare dimmed in the tree

    You can quickly redisplay an element byright clicking on the element in the tree(right mouse button) and selecting theHide/Show option in the contextual menu

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    Shading (SHD) Wireframe (NHR)

    Dynamic Hidden LinesRemoval (HLR)

    Shading & edges

    What are the Different Rendering Styles?

    You will use material for realistic and nice pictures, shadingmode for regular work, and edges for easy selection, ...

    You can customize the

    viewing mode accordingto your needs by quicklyapplying viewingparameters, especiallyoutlines and materials

    Standard Styles Customized Style

    Customized

    Shading with edges &hidden edges

    CATIA V5 F d t l

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    Saving and Closing Documents

    You will learn the different ways to save and close documents

    CATIA V5 Fundamentals

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    There are different ways to save CATIA documents.

    What About Saving Documents ?

    You save documents:

    after modifying them. to create new ones.

    You save documents: with the same name (to replace the initial document). under a new name (to create a new document).

    When & Why?

    Naming...

    CATIA V5 Fundamentals

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    There are different ways to save changes made in adocument. You can also save an existingdocument to create a new one

    Shortcuts

    Press [Ctrl] and [s]keys

    simultaneously

    Saving a Document with the Same Name

    The document issaved in the same

    folder with the samename

    Saving an existingdocument

    CATIA V5 Fundamentals

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    This procedure creates a new document

    Saving a document forthe first time

    Saving a document to

    create a new one

    2. Give a name to the new document to

    create

    (Creates a copy)

    1. Browse the file and select the directorywhere to store the document

    Here, the document is stored in the same folder with a new

    name.It is a CATPart type document (Part Design workbench)

    3. Click Save button to confirm

    Saving a Document with a New Name

    CATIA V5 Fundamentals

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    Closing a Document

    Click on File >Close...

    If changes have been made but notsaved, a pop-up window asks you

    if you want to save changes

    Click on Yes, to save the changes, Click on No to close the document without saving the changes, Click on Cancel to keep the document open.

    ... or on the Closeicon of the documentwindow

    3

    2

    1

    CATIA V5 Fundamentals

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    To Sum Up ...

    This concludes the lesson on the introduction to CATIA V5.

    You have learned :

    How to start CATIA

    The CATIA V5 user interface

    The Workbench Concept

    The Specification Tree

    The Objects ManipulationsThe Objects Visualization

    How to save and close CATIA V5 documents

    CATIA V5 Fundamentals

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    Introduction to the CATIA Sketcher

    You will become familiar with the CATIA V5 Sketcher Workbench

    CATIA V5 Fundamentals

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    What is a Sketch ?

    To begin a new part, a 2D profile is needed.

    The 2D profile can be parametrized by

    constraints.

    The Sketcher is a 2D dimension workspace:the elements created within the Sketcher are

    exclusively 2D WIREFRAME elements.

    Back to the 3D space, the elements createdin the Sketcher are seen as a single entity:the SKETCH.

    This Sketch can be the base profile of mostof the Part features.

    CATIA V5 Fundamentals

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    The Sketch Support

    The sketch support MUST be PLANAR.

    You can create a Sketch either on a plane or on a planar face of an existing geometry:

    Sketching on a Plane:-Any plane can be the support of a Sketch-If needed, you can create planes dedicated tosketches

    -The Sketch Origin is the Plane Origin

    Sketching on the Face of an Existing Feature:-The face of the feature must be planar

    -The Sketch is linked to the Feature on which it is created

    Note: It is better to create the sketch on a

    stable support.

    CATIA V5 Fundamentals

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    Select Start > MechanicalDesign > Sketcher then select aplane or a face on an object

    Sketcher Workbench (1/2)

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    If you want to create a Sketch by specifying its 3D position and orientation, you have to select theSketch Positioning icon.

    You can also access the Sketcher by selecting the Sketcher icon from any Workbench where it

    is possible to do a sketch.

    A dialog box where you can define the Absolute Axis

    System appears. If you create a Sketch, it will bepositionned regarding to this System.

    Sketcher Workbench (2/2)

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    The Sketcher Environment

    Once you are in the Sketcher Workbench, you are in an environment built

    to facilitate the creation of the 2D Profiles:

    The Grid:-The Grid in the Sketcher Workbench guides youwhile you create the profiles.

    Snap to Point:-This tool Magnetizes the Grid so that the cursor ofyour mouse always snaps to the points of the grid

    Snap to PointActive

    Snap to PointInactive

    The Grid Parameters:-The spacing of the grid can be set via theTools/Option menu:

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    Introduction to CATIA Sketcher:RecommendationsYou will learn about specific methods and recommendations on basic Sketchertasks.

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    Tips for working in the Sketcher (1/2)

    While working in the Sketcher Workbench, here are a few things to consider:

    The Screen Orientation:- As a general rule, it is recommended that the screen be oriented parallel to the sketching plane you arein. This will happen automatically provided the options panel is set as shown.

    The Normal View ICON:- While in the Sketcher, you may sometimes inadvertently rotate the part, causing the screen to be nolonger parallel to the sketching plane. If this occurs, you select the Normal View ICON, and the screenwill again be positioned parallel to the sketching plane.

    When you exit the Sketcher, the screen will immediately return to the previous orientation.

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    Tips for working in the Sketcher (2/2)

    Sketching in 3D:- Even though you will be creating 2D sketchedgeometry, all geometry in 3D space is accessible.This will mean it will be possible to constrain the2D geometry to features not in the same sketchingplane. You can rotate the part, use any geometry,then select the Normal View ICON to return thedisplay to being parallel to the sketching plane.

    The Normal View ICON, continued:- In addition, if you desire to invert the orientation (look at the sketching plane from the other side), youcan select the Normal View ICON an additional time.

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    To Sum Up

    This concludes the introduction to the Sketcher Workbench.

    You have seen:

    What is a Sketch

    The sketch support

    How to access the Sketcher Workbench

    The Sketcher environment

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    Sketcher Geometry Management

    Sketcher Geometry CreationSketcher Axis Creation

    Sketcher Geometry Re-limitation and Transformations

    Sketcher Geometry Modification

    Sketcher Geometry Management Recommendations

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    Introduction

    Geometry Creation:In the sketcher workbench, tools arededicated to the 2D profiles creation:

    Geometry Re-limitation:These profiles can be re-limited ortransformed:

    Geometry Modification:The 2D profiles can be modifiedafterward, impacting the solid which isbased on the 2D profile:

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    Sketcher Geometry Creation

    You will learn how to create the Basic Sketcher Geometries:

    Points

    Lines and Curves

    Circles

    User Defined Profiles

    Pre-defined Profiles

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    Points

    Project an existing point onto an existing curve. The projection can be

    normal to the curve or along a direction.

    Projection

    Point

    Create the intersection point between two existing curves.IntersectionPoint

    Create as many points as you want equidistantly distributed on anexisting curve.

    EquidistantPoints

    Create a point defining its coordinates in the 2D space of the Sketch.Points byCoordinates

    Create a point just clicking where you want it to be.Points by

    Clicking

    DescriptionIcon

    Note:

    Each sketcher geometry is based on points. As a consequence, each time

    you create a geometry in the sketcher workbench, points are implicitlycreated:

    Point types available in the Sketcher Workbench:

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    Lines

    Create a line normal to an existing curve.Line Normal

    to Curve

    Create a line bisecting to two existing lines.BisectingLine

    Create a line tangent to two existing curves.Bi-tangent Line

    Create an infinite line defining its direction byclicking two points.

    Infinite Line

    Create a line by clicking two points to define itsextremities.

    Line

    DescriptionGeometryIcon

    Line types available in the Sketcher Workbench:

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    Circles

    Create an arc passing by three points, relimited by

    the first and the second selected points.

    Three points arc

    starting with limits

    Create an arc passing by three points, relimited by thefirst and the last selected points.

    Three Points Arc

    Create a circle tangent to three existing curves.Tri-tangent Circle

    Create a circle giving the coordinates of its centerand its radius.

    Circle

    by Coordinates

    Create a point passing by three points.Three PointsCircle

    Create a circle defining its center and its radius byclicking.

    Circle

    DescriptionGeometryIcon

    Create an arc defining its center and the two limit

    points.

    Arc

    Circle types available in the Sketcher Workbench:

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    Ellipse, Parabola, Hyperbola, and Spline

    Create a spline curve passingby as many points as you want.

    End the spline by double-clicking.

    Spline

    Create an Hyperbola selecting:-The focus and center points

    -The summit

    -The relimiting points

    Hyperbolaby focus

    Create a Parabola selecting:

    -The focus point

    -The summit

    -The relimiting points

    Parabola byFocus

    Create an ellipse by selectingits center point, and defining its

    dimensions by clicking twopoints.

    Ellipse

    DescriptionGeometryIcon

    Focus and summit selection Relimiting points selection

    Focus and center selection Summit and relimiting points selection

    1 2 3

    1 2 3 4

    1 2 3 4 5

    1 2 3 4 5

    N t

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    Conics

    Select two end points, selectthree mid points.

    Five pointconic

    Select the two end points,

    select two mid points, defineone tangency at first or last

    point.

    Four pointconic with

    one tangent

    Select two end points, select apoint which defines the

    tangenct intersection, select amid point.

    Two point conicwith tangent

    intersection

    Select an end point, define its

    tangency, select the other endpoint and its tangency, select a

    mid point

    Two pointconic withend tangents

    Conics can be sketched in several ways. After the ICON is selected,

    several conic tools appear in the Sketch Tools toolbar.

    DescriptionGeometryIcon

    1

    2

    3

    4

    1 2

    3

    4

    1

    2

    3

    4

    5

    1 2

    345

    5

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    Pre-defined Profiles

    Create a keyhole profile defining .Keyhole

    Create a cylindrical elongated holedefining an arc as its axis, and defining

    its thickness.

    CylindricalElongated Hole

    Create an elongated hole defining a

    segment as its axis, and defining itsthickness.

    ElongatedHole

    Create a parallelogram defining twoconsecutive corners, and a third corner

    to give it thickness and angle.

    Parallelogram

    Create a rectangle defining two

    consecutive corners to define its

    orientation, and a third corner to give ita thickness.

    OrientedRectangle

    Create a rectangle clicking its twoopposite corners.

    Rectangle

    DescriptionGeometryIcon

    1

    2

    1 2

    3

    12

    3

    1 23

    12 3

    4

    1 23 4

    Notes:

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    Pre-defined Profiles, continued

    Create a parallelogram by selecting two

    lines (whose intersection defines thecenter, and direction defines the

    orientation), then one corner.

    Centered

    Parallelogram

    Create a rectangle by clicking its center,then one corner.

    CenteredRectangle

    DescriptionGeometryIcon

    1 2

    1 23

    Create an hexagonal profile selectingthe center point and the shape size.

    Hexagon

    12

    Notes:

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    U d fi d P fil

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    User-defined Profiles

    To create a user defined profile in the sketcher workbench, you have to:Start The

    Profile, then Go on with the profile creation and finally end the profile

    End an close profile by

    selecting the first point,end an open profile bydouble-clicking.

    End the

    profile

    You can go on with theprofile using segments

    (line option), or arcstangent (tangent arc), orArc non-tangent (three

    points arc).

    Go on withthe profile

    creation

    The profile can start with a

    segment using the Lineoption, or with an arc using theThree points arc option.

    Start the

    profile

    DescriptionGeometry

    Steps in theprofilecreation

    Line

    option

    Three points

    arc option

    Line option Tangent Arcoption

    Threepoints arc

    option

    Double-click to end an

    open profiles creation

    Click on the first point to

    end a close profilescreation

    Notes:

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    El t f 3D G t

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    Elements from 3D Geometry

    Project the silhouette of a canonical

    revolution element onto the sketchplane.

    Project 3DSilhouette

    Edges

    Intersect 3D elements with the sketchplane.

    Intersect 3DElements

    Project 3D elements onto the sketch

    plane.

    Project 3D

    Elements

    DescriptionGeometryIcon

    1

    2

    1 2 3

    1

    2

    3

    3

    The axe of the revolutionelement must be parallel tothe sketch plane.

    The selected 3D element mustintersect the sketch plane.

    These sketch elements are linked to the 3D geometry they have been created from

    .

    You can use the following isolation tool to break this link:

    This tool allows you to isolate the elements created from 3D geometry fromtheir parent geometry (I.e. : a 3D geometry modification will not impact

    anymore the sketch elements created from them).

    Isolate

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    You will learn the method to create an Axis in Sketcher

    Sketcher Axis Creation

    Notes:

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    What is the Axis Used for?

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    What is the Axis Used for?

    An Axis element must be includedin a Sketch from which a Shaft orGroove solid feature is created. TheProfile to be swept around this axismust either be Closed or have itsendpoints Coincident to the axis.

    An Axis drawn into a Sketch canalso be used (but not required) to

    generate a Surface of Revolution. Aseparate Line or Solid Edge canalso serve to specify the axis ofrevolution. Also, the Profile neednot be Closed nor Coincident to theaxis in this case.

    Notes:

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    Axes cannot be converted into constructionelements

    In the Sketcher,select Axis icon

    Click the first

    location forstarting pointof the axis...

    2

    then click the endlocation

    You will need axes whenever using a

    symmetry command or creating a groveor shaft.

    Using the shaftcommand on our profilesketch, CATIA producesa shaft using the axis wedefined

    3

    1

    Creating an Axis

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    Sketcher Geometry Re-limitation andTransformationYou will learn how to re-limit and apply transformations on the elements of asketch:

    After RelimitationsBefore Relimitations

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    Sketcher Geometry re-limitation is used to re-limit thesolid derived from this profile: a re-limitation of thesketcher geometry will also re-limit the solids based

    on this geometry:

    Note:In general, geometry is seldom re-limited in V5.

    Why Re Limiting Geometry?

    Notes:

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    Re-limitations

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    Re limitations

    Trim 2 curves and keep the part of thecurves you selected.

    Trim

    Create a chamfer between the 2 selected

    lines.

    Chamfer

    Create a corner shape between the 2

    selected lines.

    Corner

    DescriptionGeometryIcon

    Break a curve by selecting the break point.Break

    Trim the part of an intersected element byselecting the part to remove.

    Quick Trim

    Close the selected arc.Close

    Creates a complementary arc.Complement an

    Arc

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    Transformations

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    Transformations

    Rotate

    Translate

    Mirror

    DescriptionGeometryIcon

    Scale

    Offset

    Create a copy of a geometry bymirroring about a symmetry axis

    Translate a geometry by defining thetranslation vector.

    Rotate a geometry by defining therotation center and the rotation angle.

    Scale a geometry by defining thecenter of the scale operation and the

    ratio.

    Offset a geometry by defining the

    offset value.

    Symmetry Moves the geometry by defining the

    symmetry axis

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    Sketcher Geometry ModificationYou will learn how modify 2D sketch elements to propagate changes to 3D parts

    After ChangeBefore Change

    Notes:

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    Why Modify Profile Geometry?

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    Sketch-based features rely on profiles for their shape

    Especially if defined with the proper constraints that represent the designintent of the part, the profile geometry can easily be changed fordownstream design changes

    Modified pad

    y y y

    Chamfer removed from sketch

    Changing the sketch that defines a feature propagates that changeto all subsequent operations involving the feature

    Design change

    Notes:

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    Geometry Modifications

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    Editing and Modifying Geometry:

    Just drag and drop the elements youwant to modify:

    Or double-click the element you want tomodify to edit its parameters:

    Deleting Geometry:

    Like any other CATIA geometry, sketcherelements can be deleted using theDELETE key of the keyboard, or thecontextual menu right clicking on the

    element to delete:

    Or

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    Sketcher Geometry ManagementRecommendationsYou will see some advice on how to use the tools of the lesson correctly

    Notes:

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    Creating a Profile: What are the best tools to use ?

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    When creating a sketched shape, there are many tools that can be used.

    An often asked question is should you use the Profile tools or should you create individualelements and trim them to form the shape desired.

    Considering using individual points

    or lines only when needed tocomplete or modify a shape.

    For example, if youwanted to createthis shape:

    You could createindividual lines, thenuse the trim tool tocreate the final shapedesired:

    However, it is often advantageous (and MUCH faster), to create the shape using

    the Profile tool (or the Predefined Profile tools) simply by clicking:

    Click

    Click

    Click

    ClickClick

    Click

    Profile toolPredefined Profiletools

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    How Complex should Sketches be ?

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    To create cornered or chamfered edges on features based on sketches, you

    have two possibilities:-Create a complex sketch including the corners and chamfers:

    -Create simple sketches and add the corners and chamfers afterward:

    Considering these arguments, it is you to decide if the corners andchamfers have to be included in the sketch.

    This kind of feature is updated faster, but complex

    sketches are harder to edit and modify.

    It takes more time to update this kind of feature, butcorners and chamfers can be easily reorder,deactivated or suppressed if necessary.

    Notes:

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    Which Should I Use - Sketcher Spline or 3D Spline ?

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    Since the 3D Spline Tool - available within the Wireframe&Surfaces (WFS) or Generative Shape Design(GSD) workbenches - can also be used in a 2D manner (with Geometry on Support being a plane),when should you use the Sketcher Spline and when is the 3D Spline more appropriate?

    In general, use the Sketcher Spline to create

    Sketches for generating solid Sketch-BasedFeatures. (Although Pads and Pockets can begenerated from 3D Splines)

    Use the 3D Spline when you need morecontrol over the Spline - i.e. Tangent Tension,Curvature Direction, Curvature Radius.

    Surfaces can be generated from Splinescreated by either method.

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    Here are some modeling techniques to consider when creating a design:

    1. Do not locate sketches/features to the edges of fillets or chamfers. This establishes arelationship between the fillet or chamfer and the feature being created. If the fillet orchamfer changes size, the feature may move without warning. If the fillet or chamfer isdeleted, an error will result which requires additional rework.

    Notes:

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    Design Considerations (2/4)

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    Here are some modeling techniques to consider when creating a design:

    2. When creating constraints in the sketcher to anedge of the part while viewing the sketch in a normalview, CATIA creates the constraint to the first edge.This could use an edge of a fillet or chamfer as shown

    here. A better alternative is to make sure theconstraint is made to a more stable feature (the faceof the part), not the edge.

    Original Part

    Constraint createdin Normal view

    uses this edge

    It is better to

    use this face

    Normal View

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    Design Considerations (3/4)

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    Here are some modeling techniques to consider when creating a design:

    3. When creating a hole, do not use a pocket created from a sketched circle. You should usea Hole feature. Even though they appear the same, using a hole feature allows the it topossess all the characteristics of a real hole, making the creation and modification easier. Italso allows the drawing view of the hole to automatically pick up the holes characteristics.

    Round Pocket Not Recommended

    Hole Feature -Recommended

    Notes:

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    Design Considerations (4/4)

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    Here are some modeling techniques to consider when creating a design:

    4. Even though a sketch can contain multiple domains, try to create a separate sketch foreach profile required. This will make future modifications easier.

    Multi-domain Sketch Two singledomain sketches

    Notes:

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    The use of Construction Geometry

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    Construction geometry are elements created in the sketch to assist in the development

    of the required profile. Construction geometry will not appear outside the Sketcher norwill be used in the creation of any part feature.

    Construction geometry is created anytime this ICON is highlighted (it is located in theSketch Tools toolbar). Construction geometry is created in the same manner as all other sketched

    geometry. An example of the use of construction geometry is shown here:

    In this example, the construction of asymmetrical shapes was aided by the

    use of construction geometry.

    Construction geometry willappear in dashed form.

    An element can be toggled between aconstruction element and a normalelement at any time by selected it, andselecting the Construction/StandardElement ICON.

    Construction geometry

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    You will practice what you learned through short exercises illustrated by adetailed solution.

    Create a simple profile made up of Lines, Arcs, Symmetry and an Axis

    Create one Pre-Defined profile: an Elongated Hole and one profile based on the

    existing 3D geometry

    Project 3D Elements into your Sketch, Trim your profile with Corners andChamfers

    20 min

    Notes:

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    Create a simple profile: process

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    Final Part: CATSKE_Ex_Sketching_Simple_Profile_Final.CATPart

    2- Lines1- Arcs

    4- Axis

    3- Symmetry

    Notes:

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    Creating Pre-defined Profiles: process

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    Pt1

    Optional: Please check with your Instructor on any questionsfor how to create a solid Pad and a Pocket from your profiles

    1- Create these profiles using ElongatedHole and Rotate tools

    Final Part: CATSKE_Ex_Sketching_Predefined_Profiles_Final.CATPart

    2- Create these profiles in a new sketch using Project 3DElements, Line, Arc and Rotate tools

    Arcs

    ProjectedEdges

    Notes:

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    Elements from 3D Geometry: Process

    Load: CATSKE Ex Recap Operations On Profiles CATPart

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    1- Project the Splines from the Supports

    2- Draw two horizontal lines through the projected Splines then trim with Corners and Chamfers

    3- Optional: Extrude a Pad with your profile

    Pt1

    Load: CATSKE_Ex_Recap_Operations_On_Profiles.CATPart

    Notes:

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    Create a Simple Profile: Recap

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    Arcs, Axis and Lines Creation

    Mirror of the Geometry

    Creation of a revolution solid from the

    profile

    Notes:

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    Creating Pre-defined Profiles: Recap

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    Elongated Holes Creation

    Rotate Geometry

    Creation of elements from 3D Geometry

    Notes:

    CATIA V5 Fundamentals

    Elements from 3D Geometry: Recap

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    Creation of elements from 3D Geometry

    Trim Geometry

    Add corners and chamfers

    Creation of a solid from the sketch

    Notes:

    CATIA V5 Fundamentals

    Additional Reference Material

    Additional information can be found in the following

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    Additional information can be found in the followingreference material

    Companion:

    Skillets:Profiles, Points, Lines, Splines, Circles and Arcs, Conics, Axis, Sketching

    Pre-defined Profiles, Modifying Profile Geometry, Re-limitingOperations, Transformation Operations, Offset, Operations on 3DGeometry

    Documentation:

    Books:

    Mechanical Design SolutionSketcher Product

    Notes:

    CATIA V5 Fundamentals

    To Sum Up ...

    This concludes the lesson on the Geometry Management in the Sketcher

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    This concludes the lesson on the Geometry Management in the SketcherWorkbench.

    You have learned how to:

    Create Basic Geometry using the sketcher tools

    Re-limit and Transform existing geometry

    Modify the geometry after its creation

    Notes:

    CATIA V5 Fundamentals

    Sketcher Constraints Management

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    Constraints Creation

    Modification of Constraints

    Relations Between Dimensions

    Sketcher Constraint Management Recommendations

    Notes:

    CATIA V5 Fundamentals

    Without Constraints, geometry can be moved freely just by using the mouse to drag them. If Sketcher

    Why Constraints?

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    Without Constraints, geometry can be moved freely just by using the mouse to drag them. If Sketcherprofiles are moved, so do the solids that are supported by them. In the context of an assembly, if onepart moves, another part that is related to it may also move.

    Although in CATIA V5 geometry will remain in place when put there, without Constraints anysubsequent movement of elements by the user may go unnoticed and affect Form Fit and Function ofentire assemblies.

    Hence, Constraints serve to mathematically fix geometry in space.

    They also can specifically relate one element to another and serve as visual feedback to the user onwhat these relationships are.

    After Constraints are created, they are easily modified by merely changing their values or placement.

    From the ease at which Constraints may be modified and from the inherent downstream associativityof V5, the user can quickly explore alternative designs.

    Movement of 4 Unconstrained

    Lines

    Notes:

    CATIA V5 Fundamentals

    What are Geometric and Dimensional Constraints ?

    Geometric constraints

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    A Geometric constraint specifies how a geometric elements

    is positioned with respect to another one: coincidence

    (located at the same place), concentricity, tangency,

    perpendicularity or parallelism

    Geometric constraints

    A Dimensional Constraint, one type of Geometric

    Constraint, specifies the distance between two elements.

    This distance can be specified as a lineardistance, an angular distance, or a radial distance depending

    on the type of geometric elements involved

    Dimensional constraints

    Dimensional constraint

    Geometric constraint

    (here distance)

    (here concentricity)

    A sketch with many constraints can quickly become unreadable. So, try to position the constraints correctly

    to make the sketch readable.

    Notes:

    CATIA V5 Fundamentals

    What Does Sketching in Context Mean ?

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    Sketching in context is using existing geometry to create new geometry

    When sketching with CATIA V5 space geometry is visualized. You can use it

    to guide your sketch

    3D geometry used to

    sketch and constrain profiles

    At first, the sketch has to only be made

    to conform to the spatial intent i.e. the left

    or right of a hole, on the inside or outside

    of a pocket, on the top or bottom of a pad,

    etc.

    Later, the exact dimensions or precise

    geometric constraints (concentricity,

    parallelism, coincidence...) can be applied

    to the sketch (or profile) to define it

    precisely

    From rough to precise sketch

    Notes:

    CATIA V5 Fundamentals

    Constraints Creation

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    You will learn how to add constraints to the elements of a sketch:

    Notes:

    CATIA V5 Fundamentals

    Geometric Constraints

    DescriptionRepresentation

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    These constraints can be set using these two icons:

    Quick Constraint icon and Constraint Define in Dialog Boxicon.

    Makes two arcs concentric.Concentricity

    Makes one point of an elementcoincident with another element.

    Coincidence

    A fix element cannot be modified.Fix

    DescriptionRepresentation

    Set tangency continuity between twoelements.

    Tangency

    Makes two lines parallel.Parallelism

    Makes two lines perpendicular.Perpendicularity

    Makes a line horizontal (parallel tothe H axis of the sketch).

    Horizontal

    Makes a line vertical (parallel to the V

    axis of the sketch).Vertical

    Notes:

    CATIA V5 Fundamentals

    Dimensional Constraints

    DescriptionRepresentation

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    Calculates the angle between twonon-parallel lines.

    Angle

    The length of the constrained

    element is calculated.

    Length

    The distance between two elementsis calculated.

    Distance

    DescriptionRepresentation

    Gives the radius or the diameter of acircle or an arc.

    Radius/Diameter

    These constraints can be set using these two icons:

    Quick Constraint icon and Constraint Define in Dialog Boxicon.

    Notes:

    CATIA V5 Fundamentals

    Modification of Constraints

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    Notes:

    CATIA V5 Fundamentals

    What Type of Modification Can be Done on Constraints?

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    All geometric and dimensional constraints may be deleted using theContextual Menu (third mouse button)

    Values of dimensions may bechanged by double-clicking onthem

    The location of dimensionsand the extension lines can bemodified by dragging with theleft mouse button The type of Constraints applied on an

    element can be modified by reentering theConstraints Dialog Box and makingmodifications there

    A geometric or dimensional constraintattached to an element (i.e. line, circle etc) can be reconnected to a differentelement. The geometry will change to

    conform to the new Constraint setup

    Pressing the Shift key when dragging a geometrical element modify automaticallythe impacted constraint value without having to edit it

    Notes:

    CATIA V5 Fundamentals

    1

    Modification in the Constraint Dialog Box

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    Select a newconstraint eg.Verticality

    1

    5

    Select the Constraint

    Dialog Box icon

    2

    Deselect thePerpendicularity check box3

    Click OK to Exit

    Select the two lines linkedwith the Perpendicularityconstraint

    4

    Notes:

    CATIA V5 Fundamentals

    2

    Double Click on theTangency Constraint

    1

    Reconnecting a Constraint

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    Click on More

    3Select the Linecomponent

    3

    Select Reconnect

    Select the unassociated line inthe Sketcher window

    4

    4

    5

    Click OK to save and exit6

    Notes:

    CATIA V5 Fundamentals

    Relations Between Dimensions

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    The objective is to create dimensional

    constraints relatively to other ones

    Notes:

    CATIA V5 Fundamentals

    What are Relations Between Dimensions?

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    Relations between Dimensions:

    Dependencies can be established between dimensions(For example, A=B+C/2)

    Originally a part of the Knowledgeware set of products,this functionality has been incorporated into the V5infrastructure and is generally accessible from allWorkbenches.

    In CATIA V5, in addition to relationships between

    dimension values, dimensions can be made dependenton other parameters such as Forces, Temperature, Time,or Material Properties etc ...

    Notes:

    CATIA V5 Fundamentals

    Creating a Relation Between Dimensions

    Right-click on the dimension youwould like to be made dependent

    1

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    2 Select the Edit Formula tool

    Select the left corner dimension3

    The right corner will always have the same

    value as the left one: it is driven by the leftcorner value

    4

    Notes:

    CATIA V5 Fundamentals

    Sketcher Constraint Management:

    RecommendationsY ill l b ifi h d d d i Sk h

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    You will learn about specific methods and recommendations on SketcherConstraint Management.

    Notes:

    CATIA V5 Fundamentals

    Tips on initial sketch of geometry (1/2)

    When you are sketching the initial geometry, here are a few things to consider to makethe creation of constraints go more smoothly:

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    Initial Size of Sketch:- As you begin to create geometry for a sketch, try to create it reasonably close in shape and size to theeventual final constrained sketch. This is because a sketch that is greatly different in size from the finalshape, will become distorted when the actual dimensional constraints are applied, making it difficult to

    understand what is occurring.

    Observing the values in the Sketch Tools toolbar will help you tounderstand the real size of the elements being sketched.

    As you can see, it is

    hard to determine theinitial size visually, whenthere may be differentzoom factors applied.

    Initial Sketch Twodifferent zoom factors Final Sketch

    Notes:

    CATIA V5 Fundamentals

    Tips on initial sketch of geometry (2/2)

    When you are sketching the initial geometry, here are a few things to consider to makethe creation of constraints go more smoothly:

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    Constraint Detection/Creation:These settings in the Sketcher Options page control whether geometric constraints are detectedduring the development of the initial sketch. You can control the types of things detected in the SmartPick panel. It is helpful to have most of these items always turned on.

    This ICON controls whether geometric constraints are automatically created during the developmentof the initial sketch. When geometry is fairly simple, it may be advantageous to have this ICON selected,as this will help speed the finalization of the shape. However, with more complex geometry, having thisICON chosen can lead to confusion and the potential for the creation of unwanted constraints.

    This check box performsthe same task asselecting the ICON.

    Notes:

    CATIA V5 Fundamentals

    Tips on Constraint Creation

    There are two tools to define the constraints on a sketch. Both can create bothgeometric and dimensional types of constraints. It is suggested that while learningconstraint creation you use the following:

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    constraint creation you use the following:

    Geometric Constraints Dimensional Constraints

    However, as you become more skilled, it is more efficient to use the process below to

    create all constraints:

    Double-clickon this ICON

    Selecting geometry createsdimensional constraints

    Selecting geometry, then

    right-clicking createsgeometric constraints

    Notes:

    CATIA V5 Fundamentals

    Controlling the Constraint Dimension Direction

    When creating a dimension constraint on a profile, the dimension direction isdetermined by the type of element selected. If the elements are points or circles, thedefault dimensions direction is parallel to the line between the points or circle centers

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    default dimensions direction is parallel to the line between the points or circle centers.

    When creating a dimension constraint between two circles or points, you can force ahorizontal or vertical dimension orientation by right-clicking and choosing the desired

    orientation.

    Notes:

    CATIA V5 Fundamentals

    Sketcher Constraints Exercises

    You will practice what you learned through short exercises illustrated by ad t il d l ti

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    detailed solution.

    Setting constraints using 3D GeometrySetting constraints with relations

    10 min

    Notes:

    CATIA V5 Fundamentals

    Setting Constraints using 3D Geometry: process

    Load: CATSKE_Ex_Recap_Setting_Constraints_1.CATPart

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    - Make the circle in your Sketch concentric to the cylinder on the Male part.

    - Put a dimension on the circle.

    - Dimension the rectangular profile with respect to the faces on the Male part

    - Optional: Create the Female Pad from your profile

    Notes:

    CATIA V5 Fundamentals

    Setting Constraints with Relation: processLoad: CATSKE_Ex_Formula_Start.CATPart

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    - Create a sketch based on the top face of the cylinder

    - Create a circle in this sketch and add a concentricity constraint with the cylinder.

    - Put a dimension on the circle.

    - Add a formula linking the circle radius with those of the cylinder

    - Optional: Create the Pocket from your profile

    Notes:

    CATIA V5 Fundamentals

    Setting Constraints using 3D Geometry: Recap

    Add a radius and length dimensions

    U t i t t iti k t h i

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    Use constraints to position a sketch inregards to a 3D part

    Notes:

    CATIA V5 Fundamentals

    Setting Constraints with Relation: Recap

    Use the face of a feature to create asketch

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    Add a concentricity constraints with a

    cylindrical 3D feature

    Create a formula between a sketcherradius and a 3D parameter

    Notes:

    CATIA V5 Fundamentals

    Additional Reference Material

    Additional information can be found in the followingreference material

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    Companion:

    Skillets:Introduction to constraints, Modifications of Constraints, Relations

    between Constraints

    Documentation:

    Books:Mechanical Design SolutionSketcher Product

    Notes:

    CATIA V5 Fundamentals

    To Sum Up ...

    This concludes the lesson on the Constraints Management in the SketcherWorkbench.

    You have learned how to:

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    You have learned how to:

    Create constraints in a sketch

    Modify the constraints of a sketch

    Create relations between constraints

    Notes:

    CATIA V5 Fundamentals

    Sketcher Analysis Tools

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    Performing a quick geometry Diagnosis

    Sorting Sketches by their Solving Status

    Notes:

    CATIA V5 Fundamentals

    You may need to know if a sketch with constraints still posses degrees of freedom (UnderConstrained), if it is Iso-Constrained, Over Constrained or Inconsistent:

    Why Analyzing Sketches ?

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    You may also need to know if a profile is open or close since some sketch based features cannot bebased on open profiles:

    Under Constrained(White)

    Iso Constrained (Green)Inconsistent (Red)

    Over Constrained(Purple)

    Notes:

    CATIA V5 Fundamentals

    Performing a Quick Geometry Diagnosis

    You will see how to display a Quick Diagnosis of a Sketch geometry.

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    Notes:

    CATIA V5 Fundamentals

    Performing a Quick Geometry Diagnosis (1/2)

    Click the Sketch Solving Status icon.1

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    2 The Sketch Status Definition dialog box isdisplayed. It indicates the overall status of the

    Sketch Geometry. In this case, the Sketch is Over-Constrained.

    3 On the Sketch and in the specification tree,under-constrained and over-constrainedgeometrical elements are highlighted andiso-constrained elements are displayed indifferent colour.

    Notes:

    CATIA V5 Fundamentals

    Performing a Quick Geometry Diagnosis (2/2)

    4 Click the Sketch Analysis icon in the dialog box or in the toolbar.

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    Solving Statusprovides a Quickanalysis of the Sketch analysis.

    5 The Sketch Analysis dialog box appears. It contains three tabs : Geometry,Projections/Intersections and Diagnostic. Click the Diagnostic tab. The information on this tabdisplays a full diagnosis of a sketch geometry.

    Detailed Informationprovides a detailedstatus on each constraint and

    geometrical element of the sketch

    Actionallows you to hide constraints orconstruction geometries according tothe element you selected.

    Notes:

    CATIA V5 Fundamentals

    Sorting Sketches by their Solving Status

    You will see how to sort Sketches by their Status (Under-Defined, Well-Defined,Over-Defined and Inconsistent)

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    Over Defined and Inconsistent).

    Notes:

    CATIA V5 Fundamentals

    Sorting Sketches by their Solving Status (1/3)

    1 Select Search in the Edit Menu.

    2 A Dialog box appears and a new attribute Solving Status is added to sortSketches by their Status.

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    3Select the Status you want to sort. Inour example, we choose the Over-Constrained Status.

    Notes:

    CATIA V5 Fundamentals

    Sorting Sketches by their Solving Status (2/3)

    4 After clicking on Search, the Sketch which is Over-Constrained appears in theDialog box.

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    Notes:

    CATIA V5 Fundamentals

    Sorting Sketches by their Solving Status (3/3)

    5 This Sketch is also highlighted in the specification tree and in the geometry area.

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    Notes:

    CATIA V5 Fundamentals

    Additional Reference Material

    Additional information can be found in the followingreference material

    Companion:

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    Companion:

    Skillets:

    Sorting Sketches by their Solving Status, Performing a Quick GeometryDiagnosis

    Documentation:

    Books:Mechanical Design SolutionSketcher Product

    Notes:

    CATIA V5 Fundamentals

    To Sum Up ...

    This concludes the lesson on the Analysis Tools in the SketcherWorkbench.

    You have learned how to:

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    Detect the over-constrained or inconsistent sketches

    Detect the open-profiles

    Notes:

    CATIA V5 Fundamentals

    Time to Practice

    You are now able to practice what you have learned with the Master Exercise

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    EDU-CAT-E-V5F-FX-V5R13 bookSketcher Master Exercise

    Notes:

    CATIA V5 Fundamentals

    You will become familiar with the CATIA V5 Part Design main features

    Introduction to Part Design

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    Notes:

    CATIA V5 Fundamentals

    What is Part Design?

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    The Version 5 Part Design workbench makes it possible to design precise 3D mechanicalparts with an intuitive and flexible user interface, from sketching in an assembly context to

    iterative detailed design. Version 5 Part Design workbench will enable you to accommodatedesign requirements for parts of various complexities, from simple to advanced.

    The Part Design workbench combines the power of feature-based design with the flexibility

    of a Boolean approach, offers a highly productive and intuitive design environment withmultiple design methodologies, such as post-design and local 3D parameterization.

    The widest application portfolio in the industry is also accessible through interoperabilitywith CATIA Solutions Version 4 to enable support of the full product development processfrom initial concept to product in operation.

    Notes:

    CATIA V5 Fundamentals

    Anywhere from 1- Start menu2- File / New menu

    Accessing the Part Design Workbench

    1 2

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    Notes:

    CATIA V5 Fundamentals

    CATPart extension

    Standardtools

    Part Design Interface : General Presentation

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    Part Designtools...

    Sketcher

    access...

    Part tree

    Features...

    Notes:

    CATIA V5 Fundamentals

    Insert menu Constraints

    Part Design InterfaceSketch-based

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    Transformations

    Operations

    Dress-up

    Surface-Based

    Notes:

    CATIA V5 Fundamentals

    A Part is a combination of one or more features,and bodies The first feature is generated from a sketch

    Part Design Terminology

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    g(profile), by extrusion or revolution Features are components based on sketches

    (sketch-based) or on existing features (dress-upandtransformation). They can also be generated fromsurfaces (surface-based) A body is a set of features that can be assembled toa part through Boolean operations (Assemble,remove, ...)

    Notes:

    CATIA V5 Fundamentals

    To Sum Up ...

    You have seen CATIA V5 Part Design

    User interface:

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    How to access the workbench

    Its user interface and tools

    The terminology that will be used

    The general design process

    ... and Basic functions:

    Extruding features (pads, pockets)

    Adding fillets, drafts

    Mirroring and shelling the part

    Notes:

    CATIA V5 Fundamentals

    Basic Sketch Based Features

    You will learn how to create and limit the most frequently used sketch-basedfeatures such as pads, pockets, shaft, and holes

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    Creating Pads

    Creating Shafts

    Creating Holes

    Creating Pockets

    Creating Grooves

    Sketch Based Features Recommendations

    Notes:

    CATIA V5 Fundamentals

    Creating a Base Feature

    To begin, it is important to have a good base feature. Typically this featurerepresents the primary shape or foundation which all the part geometry can beadded or removed from.

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    The base feature is usually started from a2D profile, sketch, or surface element.

    This lesson will focus on the parts wherethe base feature begins from a 2D profile

    or sketch. Which in CATIA is referencedas Sketch Based Feature.

    Notes:

    CATIA V5 Fundamentals

    Selecting a Base Feature

    When selecting a base feature, it is recommended to select the basic elementswhich will convey the primary shape or function of the part. This does not meanthe level of detail for a base feature have to be completely defined. For example,some corner fillets, holes, pockets, etc might not be originally created as part ofthe base feature sketch but created later using another feature for its definition.

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    Steps for selecting a Base Feature: Identify the part features

    Select one to represent the Base element

    Identify the CATIA tools (features) needed to create it

    Create the feature

    For example, what would be the base feature for the part?

    Notes:

    CATIA V5 Fundamentals

    Selecting a Base Feature Exercise

    What would be the base feature for the following parts?

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    Notes:

    CATIA V5 Fundamentals

    Features which Add or Remove Material

    Features adding material:

    Once the base feature is selected, it needs to be defined by adding or removing

    material to complete the design. Below is a list of features that add or removematerial.

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    Features adding material:-Pad (material added by extruding a sketch)

    -Shaft (material added by revolving a sketch)

    -Rib

    -Loft

    -Stiffener

    Features removing material:

    -Hole

    -Pocket (material removed by extruding a sketch)

    -Groove (material removed by rotating a sketch)

    -Slot

    -Remove Loft

    Not covered in this lesson

    Not covered in this lesson

    Pocket

    Groove

    PadShaft

    Hole

    Notes:

    CATIA V5 Fundamentals

    Creating Pads

    You will learn how to create simple pads from a 2D profile (or sketch)

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    Extruded Pad

    Notes:

    CATIA V5 Fundamentals

    What is a Pad ?

    A pad is a basic feature which is created by extruding or giving thickness

    to a 2D profile (called a sketch) or surface. It is typically one of the firstfeatures created when starting a new part.

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    Extruded pad

    2D profile (sketch)

    Length types

    A pads length can be defined by dimensions or withrespect to other 3D limiting elements. If defined with alimiting element the pad is associative to the element.

    Associative the geometry definition of one feature is used to control another.

    Length may also be referred to as

    depth.

    Depth

    Notes:

    CATIA V5 Fundamentals

    Select the Profilesketch to be usedfor the Pad Modify the Pad

    definition3

    1

    Select the Padicon

    Creating Pads

    2

    The process to create a pad, as shown below, is to select a profile to define the

    shape, add the necessary pad attributes and then validate its creation.

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    The Pad definition can bemodified after creation bydouble clicking on the Padgeometry or product structure

    You get:

    Notes:

    CATIA V5 Fundamentals

    Creating Shafts

    You will learn how to create sim