Catia Tutorial

(1)

CATIA V5

Fundamentals

Infrastructure

Sketcher

Part Design

Assembly Design

(2)

The Workbench Concept

Each workbench contains a set of tools that is dedicated to perform a specific task. The following workbenches are the commonly used:

• Part Design: Design parts using a solid

modeling approach

• Sketcher: Create 2D profiles with

associated constraints, which is then used to create other 3D geometry.

• Assembly Design: Assemble parts together

with constraints

• Drafting: Create drawings from parts or

assemblies

• Generative Shape Design: Design parts

(3)

User Interface

Below is the layout of the elements of

the standard CATIA application.

A, Menu Commands

B. Specification Tree

C. Filename and extension of current

document

D. Icon of the active workbench

E. Toolbars specific to the active

workbench

F. Standard Toolbar

G. Compass

H. Geometry area

A C E F B H G D

(4)

Type of Documents

The common documents are:

A, A part document (.CATPart)

B. An assembly document (.CATProduct)

C. A drawing document (.CATDrawing)

A

B C

(5)

Display Settings

To improve the 3D surface accuracy,

Use the Tools->Options... Command, then open

the tab page Display->Performances

Then lower the fixed sag value to make the

surface look smoother

You can also change the background color on the

tab page Display->Visualization

(6)

View & Hide Toolbars

- Select “View > Toolbars”.

The list of current toolbars is displayed. Currently visible

toolbars are indicated by a tick symbol to the left of

the toolbar name.

In the list, click the toolbar you want to view or hide.

-

You can detach toolbars from the application

window border by dragging the double line to the left

of the toolbar: you can drag the toolbar anywhere

around the screen, then dock the toolbar in the

same or in another location by dragging it onto the

application window border

-

To restore the original positions of the toolbars on

the current workbench, select

(7)

Change the view with the mouse

A. Panning enables you to move the

model on a plane parallel to the

screen. Click and hold the middle

mouse button, then drag the

mouse.

B. Rotating enables you to rotate the

model around a point. Click and

hold the middle mouse button and

the right button, then drag the

mouse.

C. Zooming enables you to increase

or decrease the size of the model.

Click and hold the middle button,

then click ONCE and release the

right button, then drag the mouse

up or down.

Middle button

(8)

Rendering Styles

A. Shading

B. Shading with Edges

C. Shading with Edges but

without smooth edges

D. Shading with Edges with

hidden edges

E. Shading with Material

F. Wireframe

More:- To change the color or

the degree of transparency,

right-click on the element

(9)

Show & Hide

A. Hide/Show

(Hide an element by transferring

it to the “No Show” space)

B. Swap visible space

(Swap the screen from “Show” to

“No Show” or vice versa)

You can select any elements in

the “No Show” space and

transfer it back to the “Show”

space by clicking the

“Hide/Show” icon

For the hidden elements, their

icons are shaded.

A B

Elements

are now

hidden

(10)

Reference Planes

The default reference planes

are the first three features in

any part file. Their names are

derived from the plane they

are parallel to, relative to the

part coordinate system:

XY plane

YZ plane

ZX plane

It is impossible to move or

delete the planes.

The planes can provide a

planer support on which to

(11)

Create a Sketch

1. Select a planer support (e.g.

datum plane, planer solid face)

from the specification tree or by

clicking the support directly.

2. Select the Sketcher Icon

from any workbench where is

possible to create a sketcher

(e.g. Part Design workbench).

3. CATIA switches the current

workbench to the sketcher

workbench; The viewpoint is

now parallel to the selected

plane.

1

2

(12)

Toolbars in sketcher

A. Profile: Create 2D elements, such as

points, lines, arcs, circles and axes.

B. Operation: Modify the existing

elements, such as chamfer, fillet, trim,

and mirror.

C. Sketch tools: Provide option

commands

D. Constraint: Set various dimensional

constraints (e.g. length, angle & radius)

& geometrical constraints (e.g.

coincidence, concentric, horizontal and

symmetric)

E. Visualization: Simplify the view

A

B

C

D

(13)

Construction Geometry

Construction geometry is created

within a sketch to aid in profile

creation. Unlike standard geometry,

it does not appear outside the

sketcher workbench.

Construction geometry is shown in

dashed format. When the

“Construction/Standard element”

icon is on, all sketched elements will

be created as construction elements.

You can also toggle any elements

from standard to construction, or

vice versa by clicking the

“construction/standard element”

icon.

(14)

Sketch Assistant

This is a line on the sketch

When the cursor is on the line, the line will turn in orange and an empty circle appears next to the cursor

When the cursor is at the endpoint of the line, a solid circle appears next to the cursor

CASE-1

CASE-2

We are going to draw a

Before clicking the second point of the line, move the cursor until the system can detect that the line is tangent to the arc. Click and confirm

Tangency

(15)

Constraining the sketch

• Dimensional Constraints

(click the icon, then select the

element(s))

• Length

• Distance

• Angle

• Radius/Diameter

Remark: To create the dimensions

continuously, double-click the icon so

that the icon is always on until you

re-click it again

• Geometrical Constraints

(multi-select the two elements by

pressing “CTRL” key and click the

icon)

• Perpendicularity

• Horizontal/Vertical

• Concidence

• Tangency

• Symmetry (multi-select the elements

on the both side and then select the

axis)

(16)

dimension constraint

The default dimension direction is

parallel to the line between the

circle centre. To change the

direction to horizontal or vertical,

right mouse click and select the

desired orientation.

(17)

Color and Diagnostic

1. White: Under-constrained

2. Green: Fixed/Fully constrained

3. Purple: Over-constrained

4. Red: Inconsistent

Only case 1 & 2 are allowable

in CATIA; for case 3 & 4, you

must fix the error before

quitting the sketcher

workbench, otherwise a

(18)

View Orientation

• By default, the screen is parallel to

the sketch support.

• To making constraints between

the sketch geometry and the 3D

element, you may need to rotate

the model into a 3D view.

• To return the default orientation,

select the “Normal View” icon.

We can create a distance

constraint between the circle

(19)

Exiting the Sketcher

• To exit the sketcher

workbench, select “Exit

Workbench” icon

• After that, the screen will be

back to 3D view and the

workbench will be switched

back to the original.

(20)

Sketcher

• EXERCISE 1

• Create a sketch on xy

plane

• Circle centre at (0,0,0)

• The geometry is

symmetrical along both x,

y axes.

• R40 must be tangent to

R16

• No endpoint is isolated

• Useless elements must

(21)

Part Design

• Feature-Based Solid Modeling

Sketch Pad

Fillet

Hole

Parent and Children Relation

If deleting Hole, we get:

If deleting Fillet,

(22)

Toolbars in Part Design

A. Sketch-Based Features: Create a solid

feature from a 2D sketch/profile

B. Dress-Up Features: Add fillets/chamfers

on the solid edge, add a draft onto the

solid faces, Hollow the solid, offset

faces…

C. Transformation Features: Change the

3D position of the solid, duplicate the

solid by mirroring/ patterning, scale

up/down the solid…

D. Surface-Based Features: Split the solid

with a surface/plane, adding material onto

surfaces…

E. Reference Elements: Create a point, a

line or a plane in the 3D space.

A

B

C

D

E

F

G

F. Boolean Operations: Join different bodies

G. Analysis: To display information about

(23)

Limit Type

Type of limit are :

A. Dimension

B. Up to Next

C. Up to Last

D. Up to Plane

E. Up to Surface

A

B

C

D

E

A new

surface

(24)

Pad & Pocket

A. Pad (material added by

extruding a sketch)

B. Pocket (material removed by

extruding a sketch)

A

B

A

B

You can define the extrusion direction by

selecting a datum plane, a line, a planar

(25)

Shaft & Groove

A. Shaft (material added by

rotating a sketch)

B. Groove (material removed by

rotating a sketch)

A

B

A

B

You can draw the rotation axis in the

profile sketch or draw another straight

line as the axis

(26)

Rib & Slot

A. Rib (material added by

sweeping a profile along a

center curve)

B. Slot (material removed by

sweeping profile along a

center curve)

A

_B

Center curve Profile

Profile Control

-Keep Angle

keeping the angle value between the sketch

plane used for the profile and the tangent of the center curve

-Pulling Direction

Sweeping the profile with respect to a

(27)

Multi-sections Solid

A. Multi-sections Solid

(material added by sweeping

one or more planar section

curves along one or more

guide curves

B. Removed Multi-sections

Solid (material removed in

the same way)

A

B

- You can always create _{Section 1}

Section 3

Section 2

- You can use an additional guide curve to control sweeping path

- If sections do not have the same number of vertices, use “ratio coupling”

(28)

Comparison of common features

Remove

Same

Curve

Planar

Slot

Planar

Curve

Various

Add

Multi-section solid

Planar

Curve

Various

Remove

Removed

multi-Add

Same

Curve

Planar

Rib

Planar

Straight line

Same

Remove

Pocket

Planar

Straight line

Same

Add

Pad

Guide/Center

Section profile

curve

Section along

the guide

Add/Remove

material

(29)

Hole

A. Hole (circular material

removed from the existing

solid);

Several types of holes are available: Simple, Tapered, Counterbored, Countersinked, Counterdrilled.

A

To locate the center of the hole

precisely inside the sketcher

workbench, Select the

(30)

Fillet

A. Fillet (creating a curved face

of a constant or variable

radius that is tangent to, and

that joins, two surfaces.)

A

Edge

Variable Radius

Face to face

Tritangent

- With the Tangency mode, a fillet is applied to the selected edge and all edges tangent to the selected edge - With the minimal mode, a fillet is

(31)

Chamfer

A. Chamfer (removing & adding a flat

section from a selected edge to

create a beveled surface between

the two original faces common to

that edge.)

A

Two Dimensioning Modes

Le

ngth

1

Angle

Le

ngth

1 Length2

(32)

Draft

A

Draft Angle

A. Basic Draft (adding or

removing material depending

on the draft angle and the

pulling direction)

Neutral Element

Side faces to draft

Pulling direction

Remark: Neutral element

always keeps unchanged

after a draft is created

(33)

Shell

A

A. Shell (empty a solid while

keeping a given thickness on

its sides)

Face to remove

The face-to-remove cannot be tangent to the nearby faces.

All edges around the face should be sharp edges.

(34)

Translation & Rotation

A. Translation (translating a solid

along a direction)

B. Rotation (rotating a solid about

an axis by a certain angle)

Be careful, the sketch

won’t move with the solid.

(35)

Symmetry & Mirror

A. Symmetry (translating a solid

to the other side of the mirror

plane)

B. MIrror (duplicating a solid on the

(36)

Patterns

A. Rectangular Pattern

B. Circular Pattern

C. User Pattern

(duplicate the features at the points created in sketcher workbench)

A

B

C

To duplicate a list of features,

multi-select the features before

clicking the icon “pattern”

(37)

Split the solid

A. Split (splitting a solid with a

plane, a face or a surface)

A

The arrow is pointing to the

material to keep; you can click on the arrow to reverse the direction

You can hide the cutting

surface after the operation

(38)

A. Assemble B. Add C. Union Trim

+

=

+

=

-

=

The positive bodies are added together and if anyone of the body is negative then the material is removed from the other body.

Two bodies are added together

The unwanted portion of the first body is removed from the

second body.

A

Boolean Operations

(39)

D. Remove Lump

=

E. Remove

F. Intersection

-

=

First body is removed from the

second body.

E

=

+

This option removes the unwanted solid in the space.

Creates the intersection between two bodies.

(40)

A. Draft Analysis

B. Curvature Analysis

A

B

C

The Draft Analysis enables to detect if the part drafted will be easily removed from the die.

Curvature analysis enables to map the curvature of a given surface.

Tap and Thread analysis shows how to display and filter out information about threads and taps contained in a CATPart document

Analysis

(41)

Part Design - exercise

• EXERCISE

2-STEP 1

Open the CATPART file done

in Exercise 1

Make sure that the current

workbench is PART DESIGN

Create a “Pad” with the

height 5.5mm (first limit)

(42)

Part Design - exercise

STEP 2

Create another sketch on

zx-plane

The sketch should have an axis

and a triangle with these

dimensions (45deg, 35deg,

2.5mm High)

One edge of the triangle should

sit on the bottom side of the pad

and its peak should not be inside

the pad

Exit Sketcher

Create a “Groove” with First

Angle Limit 360deg

(43)

Part Design - exercise

STEP 3

Create the 3

rd

_{Sketch on}

yz-plane

The sketch should have an axis

and two lines, which are

symmetrical

One end point sits on the axis

and the other sits on the

outermost plane of the solid

Exit Sketcher

Create a “Pocket” and select

“Up to Last” for limits on both

sides

(44)

Part Design - exercise

STEP 4

Create the 4

th

_{Sketch (a}

circle Dia 28mm) on the top

planar surface of the solid

Create a “Pocket” with depth

1.5mm

STEP 5

Create an offset “Plane”

(15mm from yz plane)

(45)

Part Design - exercise

STEP 6

Create the 5

th

_{sketch on the}

offset plane

Draw a circle (Dia 3.0mm;

distance between the solid

base and the circle center is

2.5mm)

Exit Sketcher

Create a “Pocket” with first

limit “Up to Last”

STEP 7

Create “EdgeFillet” (2mm) at

the 4 corners

(46)

Part Design - exercise

STEP 8

Create another “EdgeFillet”

(5mm) to remove the four sharp

edges on the top surface

STEP 9

Create a “Chamfer” on both

sides

(47)

Assembly Design

A Product stores a collection

of components (parts or

sub-products). The file extension

is .CATProduct.

Product

Parts

Sub-products

button

body

ring

bracklet

Storing the constraints

between parts or

sub-products

(48)

Create a New Product

Create a New Product by:

A. Switching to Assembly Design

workbench; or

B. Clicking File/New/Product

Or

A

B

You can change the

Product’s properties (e.g. name) by right-clicking here

(49)

Insert an existing component

Right-click the product tree, then

select ”Components>”Existing component…”

OR

_{Drag the part tree onto the product tree}

-or

(50)

Move components by Compass

Drag the compass from the top-right corner of the window to the component you want to move; the Compass will

Active product

Component being moved

Drag any of the green lines of the

compass to move the component

Remark:

(1)You can only move the components of the active product (2) To reset the compass, drag it onto the global coordinate

(51)

Constraints between components

A. Coincidence Constraint

B. Contact Constraint

C. Distance Constraint

D. Angle Constraint

E. Fix Component (fix a component

in space; normally we ‘d fix at

least one component)

A

D

C

B

E

When the cursor is pointing

at the curved surface of the

(52)

Updating Constraints

Use compass to drag a component to another position

After selecting “Update” icon,

The constraints need to be “Updated”

(53)

Instant Simulation

Drag the compass while pressing

“shift” key on the keyboard; you

will see that other components will

move with the active component

with respect to constraints

The base is fixed

Their axes are

(54)

Interference check

Select Type “Contact & Clash”;

“Between all components”; then

“apply”

Interference result

Clash: RED

Contact: Yellow

Clearance: Green

(55)

Sectioning

After clicking

“sectioning” icon, a

section plane will be

automatically created

parallel to the yz plane

at the product origin.

Volume Cut; When activated, one side of the volume will be You can orient the section

plane by dragging the red-line of the plane

(56)

Assembly Design - exercise

• EXERCISE

3-• Build the rest of components,

such as ring, button, chain as

the separate parts

• Assemble them together

• Check any interference after

assembly

(57)

CATIA V5

Parametric Surface Modeling

(58)

Toolbars in Generative Shape Design

A. Wireframe: Create 3D curves / lines/ points/

plane

B. Surfaces: Create surfaces

C. Operations: Join surfaces, Split & Trim

surfaces, Change the 3D positions of surfaces, Fillets…

D. Replication: Pattern, Powercopy…

E. Analysis: Connection analysis, Draft analysis,

curvature analysis…

F. Surface-based Features: (On Part Design

Workbench), create a solid from surfaces, modify the solid by a surface…

A

B

C

D

E

F

(59)

Point

(60)

Extremum (max or min point)

Extremum (create an extremum element (point,

edge, or face), which is at the minimum or

maximum distance on a curve, a surface, or a

pad, according to given directions. )

(61)

Line

(62)

Plane

(63)

Projection onto a support

Projection (project one or more elements

onto a support. The projection can be normal

to surface or along a specified direction.)

Normal to surface

Along a direction (vertical)

(64)

Combine Curves

Combine Curves (create a curve resulting

from the intersection of the extrusion of two

curves. )

A 3D resultant Curve

(65)

Reflect Line

Reflect Line (create curves for which the

normal to the surface in each point present

the same angle with a specified direction.

They can be closed or open.)

The normal of surface at all points along the curve is 38deg from the vertical axis

(66)

Intersection

Intersection (create wireframe geometry by

intersecting elements.)

Intersection curve between two surfaces

Intersection point between a curve and a surface

Intersection curve between a surface and a solid

(67)

Parallel Curve

Parallel Curve (create a curve that is parallel

to a reference curve.)

Offset the curve on the surface (The resultant curve is still on the surface)

We have a curve lying on the surface

(68)

Corner

Corner (create a corner between two curves)

If several solutions may be possible, click the

Next Solution button to

move to another corner solution, or directly select the corner you want in the geometry

(69)

Connect Curve

Connect Curve (create a connecting curve

between two curves. )

Point-continuous, tangent-continuous or curvature-continuous Point-continuous, tangent-continuous or curvature-continuous

The curvature in the middle can be

(70)

Spline Curve

Spline Curve (create a 2D/ 3D spline curve)

We can create an additional line to define the tangent direction at a point.

(71)

Helix

Helix (create a helix curve like a spring)

First Create a point and a straight line

With Taper Angle

_{Follows a profile}

(72)

Extrude

Extrude (create a surface by extruding a

profile along a given direction)

If the profile is planar, the direction will be its normal by default. But you can change it to other direction.

(73)

Revolve

Revolve (create a surface by revolving a

planar profile about an axis)

Sketch.1

Line.1

(74)

Offset

Offset (create a surface, or a set of surfaces,

by offsetting an existing surface, or a set of

surfaces)

(75)

Sweep

Sweep (create a surface by sweeping out a

profile along one or two guide curves)

Sweeping an Explicit profile

- With reference surface (optional) - With two guide curves (optional) - With pulling direction (optional)

(We can use the above three options to control the profile orientation)

Sweeping a Linear profile

- Two limits

- Limit and middle

- With reference surface - With tangency surface - With reference curve

- With two tangency surfaces

- With draft direction

Profile

Guide Curve

Explicit _LineCircular Conical

Then create a draft surface by sweeping an inclined linear profile We first create a

(76)

Sweep – Con’t

Sweeping a Circular profile

- Three guides

- Two guides and radius

- Center and two angles - Center and radius

- Two guides and tangency surface - One guide and tangency surface

Sweeping a Conical profile

- Two guides

- Three guides

- Four guides - Five guides

(77)

Fill

Fill (create a surface to fill the opening

among a number of boundary segments)

We can specify the desired continuity type between any selected support surfaces and the fill surface (Point, Tangent or Curvature continuous)

Support Surface

Support Surface The four points must

be tangent-continuous or curvature-continuous

Passing through a point (optional)

(78)

Multi-sections Surface

Multi-sections surface (create a surface by

sweeping two or more section curves along an

automatically computed or user-defined spine. The

surface can be made to respect one or more guide

curves. )

Further control point-point matching by

(79)

Blend

Blend (Create a surface between two

(80)

Join

Join (join surfaces or curves as one element)

(81)

Split & Trim

Split (split a surface or wireframe element by

means of a cutting element. You can split a

wireframe element by a point, another

wireframe element or a surface; or a surface

by a wireframe element or another surface. )

Trim (trim two or more surface or wireframe

elements)

Split Trim Cutting Element Element to Cut

Result by

“Split”

Original

Result by

“Trim”

(82)

Boundary

Boundary (create the boundary curve of a

surface)

We can select limit points to limit the

(83)

Extract

Extract (extract from elements (curves,

points, surfaces or solids)

Only tangent surfaces are selected Only Selected

surface

All surfaces are selected

(84)

Shape Fillet

Bi-tangent Shape Fillet (create a shape fillet

between two surfaces)

Tri-tangent Shape Fillet (create a shape

fillet between three surfaces)

Smooth: a tangency constraint

is imposed at the connection between the fillet surface and the support surfaces, thus smoothing the connection.

(85)

Edge Fillet

Edge Fillet (create a constant radius fillet

along the internal edge of a joined surface)

Select the edge of the Join Surface

(86)

Variable Fillet

Variable Fillet (create a variable radius fillet.

In this type of fillet, the radius varies at

selected points along a selected edge. The

fillet surface is obtained by rolling a sphere,

which radius would vary, over the selected

edge. )

Create a point along the edge before filleting

Click the box and select the point

After entering a new value for this point, we have a different

(87)

Face-Face Fillet

Face-Face fillet (create a face-face fillet.

The fillet surface is obtained by rolling a

sphere, which radius is larger than the

distance between the selected elements,

between the selected surfaces. )

Remark: This is a “Joined” Surface

We can add this fillet between two faces that are not touching each other

(88)

Tri-tangent Fillet

Tri-tangent Fillet (The creation of tritangent

fillets involves the removal of one of the three

faces selected, as the fillet surface is

obtained by rolling a sphere, which radius is

automatically computed to be larger than the

removed surface, between the selected

(89)

Translate, Rotate, Symmetry, Scale

Translate Rotate Symmetry Scale Affinity Translate Rotate Symmetry Scale Affinity

(90)

Extrapolate

Extrapolate a surface boundary:

Extrapolate a Curve:

Tangent/Curvature

We can join the extrapolated surface with the original surface Tangent Continuity

– this will be a straight edge

(91)

Patterns

Rectangular pattern Circular pattern User pattern

Rectangular pattern

Circular pattern User pattern

First create a sketch with points

(92)

Connect Checker

Connect Checker (analyze how two surfaces

are connected )

Distance -

minimal distance between two vertices

Tangency -

angle between two surfaces

Curvature Difference

(|C2 - C1|) / ((|C1 + C2|) / 2)

Curve Connect Checker

(analyze how two curves are connected )

Distance -

minimal distance between two vertices

Tangency -

angle between two curves

(93)

Draft Analysis

(analyze the draft angle on a surface)

(Remark: To view the draft result, we need to use the Shading with Material mode.)

1

2

3 4

STEPS:

1. Click “Feature Draft Analysis

2. Define the color scale (e.g. -1, 0, +1 deg)

3. Click the option “Compass” on the pop-up menu 4. Select all surfaces

(94)

Create a New Geometrical Set

To CREATE a new geometrical

set:-- Select “Insert/Geometrical Set…” on the top menu - Click ok

(Remark: Provided that Hybrid Design is

disabled, a geometrical set will be created

automatically when the first wireframe/

surface/ plane is created)

To MOVE a surface from One Geometrical

Set to the

other:--Right-click on the surface to access the contextual menu

-Select “Change Geometrical Set…”

-Select the other geometrical set from the list of Destination

(95)

Split (by Surface)

Remark:

The surface-based features (Split, Thick

Surface, Close surface & Sew) are available

only on Part Design Workbench

Split

(split a solid with a plane, face or

surface )

(96)

Thick Surface

Thick Surface (add material to a surface in

(97)

Close Surface

Close Surface (Add material inside the

(98)

Sew Surface

Sew Surface (a Boolean operation combining a

surface with a body. This capability adds or

removes material by modifying the surface of the

solid.)

(99)

Exercise

Exercise 1

- Sweep/ Extrude/ Offset

- Blend/ Split/ Boundary

- Fill/ Join

Exercise 2

- Revolve/ Sweep/ Split

- Shape Fillet/ Extrude

- Symmetry/ Join

(100)

(1) Start/Shape/Generative Shape Design

(2) To make a Sweep

surface:-• Click “Sketch” icon and select yz plane

• Draw an arc (R500) with one end (0,0) as shown in Fig.1

• Click “Exit” to complete • Deselect Sketch.1

• Click “Sketch” icon again and select zx plane • Draw an arc (R400) with symmetric endpoints as

Exercise 1

No sharp edges along the boundary

A

Section A-A

Fig.1

Fig.2

(101)

(Con’t)

• Click “Sweep” icon

• Select “Explicit” as Profile Type • Select Sketch.1 as Profile

• Select Sketch.2 as Guide Curve • Click ok to complete

• Hide Sketch.1 & Sketch.2

(3) To make an Offset

Plane:-• Click “Plane” icon

• Select xy plane as Reference • Enter 160mm as Offset (upward)

• Click ok to complete

(4) To make a sketch on the offset

plane:-• Click “Sketch” icon and select Plane.1 • Draw the Profile as shown in Fig.3 • Click “Exit” to complete

Exercise 1

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(5) To Project the sketch onto the

surface:-• Click “Projection” icon

• Select “Along a direction” as Projection type • Select Sketch.3 as Projected

• Select Sweep.1 as Support • Select xy plane as Direction • Click ok to complete

(6) To Split the

surface:-• Click “Split” icon

• Select Sweep.1 as Element to cut • Select Project.1 as Cutting element

• (Click “Other Side” option to choose the outer portion) • Click ok to complete

• Hide Sketch.3 & Project.1

(6b) To Offset the

surface:-• Click “Offset” icon

• Select Sweep.1 as Surface

• Enter 6mm as Offset (Downward)

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(7) To Create Two offset

planes:-• Click “Plane” icon

• Select zx plane as Reference

• Enter 50mm as Offset (positive side)

• Click ok to complete • Click “Plane” icon again

• Select zx plane as Reference

• Enter 230mm as Offset (positive side)

(8) To Split

Surfaces:-• Hide Surface Split.1; Show Surface Sweep.1

• Click “Split” icon

• Select Sweep.1 as Element to cut • Select Plane.2 as Cutting element

• Click “Other Side” option to choose the smaller portion • Click ok to complete

• Click “Split” icon again

• Select Offset.1 as Element to cut • Select Plane.3 as Cutting element

• Click “Other Side” option to choose the smaller portion

Exercise 1

Plane.2

Plane.3

Result of Split.2

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(9) To Create a

Blend:-• Click “Blend” icon

• Select the edge of Split.2 as First Curve • Select Split.2 as First Support

• Select the edge of Split.3 as Second Curve • Select Split.3 as Second Support

• Select Tangency for First continuity and Second continuity

(10) To make a sketch on the offset

plane:-• Click “Sketch” icon and select Plane.1 • Draw the Profile as shown in Fig.4 • Click “Exit” to complete

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(11) To Project the sketch onto the

Blend:-• Click “Projection” icon

• Select “Along a direction” as Projection type • Select Sketch.4 as Projected

• Select Blend.1 as Support • Select xy plane as Direction • Click ok to complete

(12) To Split the

Blend:-• Click “Split” icon

• Select Blend.1 as Element to cut • Select Project.2 as Cutting element

• (Click “Other Side” option to choose the inner portion)

• Hide Sketch.4 & Project.2

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(13) To Hide all constructive

elements:-• Hide all elements except Split.1 & Split.4

(14) To make 4

boundaries:-(1st _Boundary)

• Click “Boundary” icon

• Select “Tangency continuity” as Propagation type • Select the edge as shown in Fig.5

(2nd _Boundary)

• Click “Boundary” icon again

• Select “Tangency continuity” as Propagation type • Select the edge as shown in Fig.5

Exercise 1

Split.4 _Split.1

1st _Boundary ₂nd_Boundary

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(3rd _Boundary)

• Select the edge as shown in Fig.6 • Select the point as Limit 1 • Click ok to complete

(4th _Boundary)

• Select the edge as shown in Fig.6 • Select the point as Limit 1 • Click ok to complete

(15) To Create a

Fill:-• Click “Fill” icon

• Select Boundary.1 then Split.4 then

Tangent

Tangent • Click ok to complete

Exercise 1

3rd _Boundary 4th _Boundary

Fig.6

Split.4 Split.1

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(16) To Join

surfaces:-• Click “Join” icon

• Select Split.1, Fill.1 & Split.4 • Click ok to complete

(17) Hide all Boundaries

Exercise 1

Result: No sharp edge between

the step-down and the original

surface

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(1) Start/Shape/Generative Shape Design

(2) To make a Revolve

surface:-• Click “Sketch” icon and select zx plane

• Draw an arc (R160) with one end (0,30) as shown in Fig.1, which should be tangent to a horizontal axis

• Draw another horizontal axis on x-axis (which will be selected to be the axis of rotation later)

• Click “Exit” to complete

Exercise 2

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(con’t)

• Click “Revolve” icon

• Select Sketch.1 as Profile

• (Sketch axis will be selected as

Revolution axis)

• Enter 0deg as Angle.1

• Enter 180deg as Angle.2

• Hide Sketch.1

(3) To make the 2

nd

Sketch:-• Click “Sketch” icon and select xy Plane • Draw an Arc (R90) as shown in Fig.2 • Click “Exit” icon to complete

Exercise 2

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(4) To make reference

planes:-• Click “Plane” icon • select yz Plane

• then select the end point of the arc

• (“Parallel through point” will be automatically selected as “Plane Type”)

• Click ok to complete • Click “Plane” icon again • select yz Plane

• then select the end point of the arc

(5) To make the 3

rd

Sketch:-• Click “Sketch” icon and select Plane.1 • Draw an ellipse with one end touching

Sketch.2 as shown in Fig.3

• (While adding the constraint (D30), right-click and select “semiminor axis”)

• Click Exit to complete

Exercise 2

yz plane

touching Sketch.2

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(6) To make the 4

th

Sketch:-• Click “Sketch” icon and select Plane.2 • Draw an ellipse with one end touching

Sketch.2 as shown in Fig.4

• (While adding the constraint (D10), right-click and select “semiminor axis”)

• Click Exit to complete

(7) To make a symmetric

curve:-• Click “Symmetry” icon

• Select Sketch.2 as Element • select zx Plane as Reference • Click ok to complete

Exercise 2

touching Sketch.2

Fig.4

Result

Zx plane

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(7) To make a Multi-sections

Surface:-• Click “Multi-sections Surface” icon • Select Sketch.3 as Section#1

• Select Sketch.4 as Section#2 • Select Sketch.2 as Guide#1 • Select Symmetry.1 as Guide#2 • Click ok to complete

• Hide Sketch.2, Sketch.3, Sketch.4, Symmetry.1, Plane.1 & Plane.2

(8) To Split the

surface:-• Click “Split” icon

• Select Multi-sections Surface.1 as

Element to cut

• Select zx Plane as Cutting element • (Click “Other Side” option to choose the

correct portion)

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(9) To make a Fillet between 2

surfaces:-• Click “Shape Fillet” icon • Select Split.1 as Support.1 • Select “Trim Support.1”

• Select Revolute.1 as Support.2 • Select “Trim Support.2”

• Enter 10mm as Radius

• (Click on the red arrow if it is not pointing outward)

(10) To make 5

th

Sketch:-• Click “Sketch” icon and select xy Plane • Draw an Arc (R78, center at (0,0)) as shown

in Fig.5

• (One endpoint must be on x-axis) • Click ok to complete

Exercise 2

Circle center

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(11) To make an

Extrude:-• Click “Extrude” icon

• Select Sketch.5 as Profile

• (The Sketch Plane, xy Plane will be automatically selected as Direction) • Enter 20mm as Limit.1

• Enter 20mm as Limit.2

(12) To Split

Surface:-• Click “Split” icon

• Select Fillet.1 as Element to cut • Select Extrude.1 as Cutting element

• (Click “Other Side” option to choose the bigger portion)

• Hide Extrude.1 & Sketch.5

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(13) To make a

Symmetry:-• Click “Symmetry” icon • Select Split.2 as Element • Select zx Plane as Reference • Click ok to complete

(14) To visual-check the tangency

continuity along the

interface:-• Click “Shading” icon

• (All black surface edges now disappear) • Check if any sharp edge appears along the

centre interface. If yes, go back to previous step(s) to correct the error.

(15) To Join

Surfaces:-• Click “Join” icon

• Select Split.2 and Symmetry.2 as

Elements to Join

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(16) To make a

Solid:-• Start/Mechanical Design/Part Design

• Click “Thick Surface” icon

• Click ok on the pop-up warning window • Select Join.1 as Object to Offset

• Enter 2mm as First Offset

• (If the red-arrows are not pointing inward, click “Reverse Direction” or directly click on an arrow to change the direction)

• Hide Geometrical Set.1

(17) To add Fillets onto the

solid:-• Click “Edge Fillet” icon • Select all sharp edges • Enter 0.5mm as Radius

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CATIA V5

Generative Drafting

Version 5 Release 17

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Drawing Management

To enter the Drafting workbench and start a new drawing:- Select File -> New (or click the New icon).

The New dialog box is displayed, allowing you to choose the type of the document you need. Select Drawing in the List of Types field and click OK.

OR

Select Start -> Mechanical Design from the menu bar. Select the Drafting workbench.

OR

Select Start -> Drafting from the menu bar.

The New Drawing dialog box is displayed, allowing you choosing the type of Standard, Sheet Style, Orientation you need. The sheet style defines among other things the sheet format, scale and orientation. Select the required standard and click the Landscape or Portrait option.

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Make sure you customized the units accordingly. For this: 1. Select the Tools ->

Options command to

display the Options dialog box.

2. Click General >

Parameters and Measure

in the list of objects to the left of the Options dialog box.

Select the Units tab and set

Length to mm and then click OK.

Save As: Exporting a Drawing

CAT Drawing file can save in the following formats:

.CATDrawing, .cgm, .svg, .gl2, .ps, .catalog, .pdf, .tif, .jpg, .dxf, .dwg, .ig2 (2D IGES), .3dxml

Importing From Files

You can import the following formats:

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Modifying a Sheet &

Deleting a Sheet

Switching to Another Standard

Views Creation

Projections

Front view: Use a reference plane on the 3D part to create a front view.

View from 3D: Generate a view and the associated annotations from the 3D.

Projection views: Generate the projection views as desired.

An auxiliary view: Define a plane that will be used to generate the auxiliary view.

Isomeric view: Create an isometric view using a 3D part.

Advanced front view: Create advanced front views to configure such elements as the view name, view scale, etc.

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Offset section view: Use a cutting profile to define and position the offset section view.

Aligned section view: Use a cutting profile to define and position the aligned section view.

Offset section cut: Use a cutting profile to define and position the offset section cut.

Aligned section cut: Use a cutting profile to define and position the aligned section cut.

Detail view

Detail view: Use a callout to create a detail view via a boolean operator from the 3D.

Detail view profile: Use a polygon to create a detail view via a boolean operator from the 3D.

Quick detail view: Callout to create a detail view by computing the view directly from 2D projection.

Quick detail view profile: Polygon to create a detail view by computing the view from 2D projection.

Clipping view

Clipping view: Callout to create a clipping view via a boolean operator from the 3D.

Clipping view profile: Callout to create a clipping view by computing the view directly from 2D projection.

Quick clipping view: Create a quick clipping view with a circle as callout.

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Broken view: Create a broken view from an active and up to date generative view using two profiles corresponding to the part to be broken from the view extremities

Breakout view: Remove locally material from a left generated view, to visualize the remaining visible internal part.

3D clipping: Clip a view by selecting in the 3D object the useful part.

View Modification

Move a view: Drag a view to a new location.

Position a view: Position Generative or Interactive views either by aligning them, superposing them and setting relative view position.

Position a view independently of its reference view: Position a view independently of its reference view.

Locate reference/resulting views: Navigate easily between reference/resulting views in the case of section views, section cuts, auxiliary views or detail views.

Isolate generated views: Remove associativity between an existing CATPart (or CATProduct or CATModel) and the corresponding generated views.

Restore Overloaded Properties/Deleted elements: Restore 3D graphical dress-up and/or generated elements that have been deleted from a view.

Lock a view: Use the contextual menu (Properties option) to lock a view.

Scale a view: Modify the scale of a view.

Rename a view: Give a new name to an existing view.

Modify a view projection plane: Modify the projection plane of any generated view.

Add a generative bill of material: Insert Bill of Material information into the active view.

Generating balloons on a view: Generate balloons on the active view.

Show geometry in views: Visualize geometrical elements in all viewpoints as well as in a 3D viewer corresponding to the views analyzed.

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Modify a callout geometry: Modify the geometrical properties of a callout used when creating detail views, section views and section cuts.

Overloading element properties: Overload the properties of generated elements in a view.

Modify a pattern: Modify the pattern of a view and apply a material to this pattern.

Duplicating generative geometry: Duplicate a generative view element in order to modify a generated view sub-part independently from the sub-part linked to the drawing.

Modify a view's links: Modify the list elements pointed by a view.

Apply a view's links to another view: Apply the links of a view to another one.

Generative View Styles

Create views using generative view styles.

Switch a view to another generative view style: Switch a view which uses a given generative view style to another style.

Apply the generative style of a view to another view: Apply the generative view style used to create a given view to another view.

Apply a generative view style to a view: Apply a generative view style to a view which was created without one.

Dimension Generation

Generate dimensions in one shot: Generate dimensions in one shot from the constraints of a 3D part (distance, length, angle, radius and diameter constraints).

Generate dimensions semi-automatically: Generate dimensions step by step from the constraints of a 3D part (distance, length, angle, radius and diameter constraints).

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Dimensions/ half-dimensions: Create dimensions by clicking elements.

Chained dimension:

Cumulated dimension system on a view Stacked dimension system on a view

Explicit dimensions: Create dimensions using explicit selection both of the desired icon and of the required geometrical elements.

Chamfer dimensions: Create a chamfer dimension using selection.

Associative thread dimensions: Create associative thread dimensions.

Coordinate dimensions: Automatically create coordinate dimensions on elements.

Holes dimensions table: Create a table containing holes dimensions (diameter and center coordinates).

Points coordinates table: Create a table containing 2D and 3D points coordinates.

Dimension edition

Re-route dimensions: i.e. recalculate dimensions taking into account new geometry elements.

Interrupt one or more extension lines: Interrupt manually one or more extension lines of one or more dimensions.

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The options in the Tools Palette allow you to position the dimension using one of the above indicated modes.

Tolerance

Datum feature: Use the Datum Feature Creation dialog box to create a datum feature.

Geometrical tolerance: Use the Geometric Dimensioning and Tolerancing Parameters dialog box to create geometrical tolerances.

Annotations

Text

Free text: Create a text that either wraps or not, that is assigned an unlimited width text frame, even though this text may reach the frame boundary

Text with a leader: Create a text with a leader either in the free space or associated

Text to be replicated

Create a balloon: Create a balloon using a dialog box.

Create a datum target: Create a datum target on a view.

Symbols

Roughness symbol: Create a roughness using a dialog box.

Welding symbol: Create a welding symbol using a dialog box.

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Create/modify a table: Create, edit and modify a table.

Insert table from the file

Dress-Up Elements

Arrows: Create an arrow.

Axis & threads

Center lines (no reference): Apply a center line to one or more circles.

Center lines (reference): Apply a center line to one or more circles with respect to a reference (linear or circular).

Threads (no reference): Create a thread without a reference.

Threads (reference): Create a thread with a reference, either circular (circle or point) or linear (line).

Axis lines: Create an axis line by selecting lines.

Axis lines and center lines: Create an axis line by selecting lines.

Fill areas

Area-fill: Create an area fill, i.e. a closed area on which you will then apply graphical dress-up elements called patterns (these can be hatching, dotting or coloring). Patterns can be applied to area fills created from both sketched and generated elements.

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Edit sheet properties: Access and edit sheet properties. Editing view properties: Access and edit view properties.

Editing 2D geometry feature properties: Access and edit information on 2D geometry features (name and stamp).

Editing 2D element graphic properties: Access and edit graphic properties. Edit pattern properties: Access and edit pattern properties.

Editing annotation font properties: Access and edit annotation font properties. Editing text properties: Access and modify text color, position and/or orientation.

Editing picture properties: Access and modify picture position, size, scale and compression. Editing dimension text properties: Access and edit dimension text properties.

Edit dimension font properties: Access and edit dimension font properties.

Editing dimension value properties: Access and edit dimension value properties.

Editing dimension tolerance properties: Access and edit dimension tolerance properties.

Editing dimension extension line properties: Access and edit dimension extension line properties. Editing dimension line properties: Access and edit information on dimension line properties.

Editing dimension system properties: Access and edit information on dimension system properties.

Editing 2D component instance properties: Access and edit 2D component instance properties. Editing callout properties: Access and edit the callout properties.

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