CATIA V5
LEARNING NOTES
Part Modelling
Part Design
The Part Design task uses intelligent design features
The features contain information about their context as well
as their shape
For example a Hole feature can only be created once you have
created a part body
A hole feature requires an attachment face, and driving dimensions
Other features include Pad, Revolve, Pocket, Groove,
Thread, Rib, Slot, Stiffener
When a new feature is added to a solid part it is automatically
combined with the existing part
Solid Part from a Sketch
Click on the Pad icon to create an extruded
part
Select the sketch containing the profile you
want to extrude (note the sketch is treated as a
single entity)
The Pad definition window will appear
Select the limit type from:
Dimension
Up To Next
Up To Last
Up To Plane
Type in the length if required
Check the extrude direction arrow
Click on OK to create the Part
Termination Points
Up to next
The Up to next option is used to extrude the sketch
from the sketching plane to the next surface that
intersects the feature.
Up to last
The Up to last option is used to extrude the sketch up
to the last surface of the model that intersects the
feature.
Up to plane
The Up to plane option is used to extrude the sketch
from the sketch plane up to the selected plane or the
planar face.
Up to surface
The Up to surface option is used to extrude the
sketch from the sketch plane to the selected surface
or planar face.
Example
Pad icon to create an extruded part
Drafted Filleted Pad button from the Pads toolbar
Multi-Pad button from the Pads toolbar and then select the sketch to be
extruded.
Modifying a part
All parts created in Part Design can be edited at any time in the life
of the part
The parameters used to create a feature can be accessed by
double clicking on the feature definition in the product specification
tree or on the part geometry
For example to change the height of a pad you should double click on the
pad node in the specification tree.
The original feature dialogue will appear on the screen
Change the values and click on OK.
When you have modified the feature parameters the part will
automatically update.
The part turns red briefly to indicate that it is out of date
To create a revolved feature, user first need to
draw the sketch that will be revolved around a
center line, which is also known as axis.
Exit the Sketcher workbench and choose the
Shaft button from the Sketch-Based Features
toolbar
Quick View toolbar, choose the down arrow on the right
of the Isometric View button in the View toolbar.
The View mode toolbar, choose the down arrow on the
right of the Shading with Edges button from the View
toolbar.
Sketching Planes
User can select any one of the default planes as the sketching
plane to create the sketch of the base feature.
The reference elements are the features that have no mass
and volume and are used only to assist you in the creation of
the models.
User can use the tools to create reference elements using the
Reference Elements toolbar
Creating New Planes
The three default planes are: xy, yz,
and zx plane.
User carefully select the sketching
plane for drawing the sketch of the
base feature, which can be drawn on
one of the three datum planes
provided by default.
To create a new plane, choose the
Plane button from the Reference
Elements (Expanded) toolbar.
Creating a Plane at an Offset Creating a Plane Parallel to an Existing Creating a Plane at an
from Existing Plane/Planar Face Plane and Passing Through Point Angle/Normal to Plane
Creating a Plane Through Creating a Plane Through Creating a Plane Through
Three Points two Lines Point and Line
Creating a Plane Through Creating a Plane Creating a Plane Tangent
Planar Curve Normal to Curve to Surface
Creating a Plane Using Equation
The Equation option is used to create a plane using the equation Ax+By+Cz = D,
where the values of A, B, C, and D are variable and can be changed to modify the
orientation of the plane.
Creating a Plane Using a Mean Through Points
The Mean through points option is used to create a plane at an orientation defined by
the mean of selected points.
To create points, choose the Point button from the Reference
Elements toolbar
The Coordinates option is used to create a point by specifying the
values of its coordinates.
The On Curve option is used to create a point on a selected curve
The On plane option is used to create a point on a selected plane.
The On Surface option is used to create a point on a selected
surface.
The Circle center option is used to create a point at the center of the
selected circle
The Tangent on curve option is used to create a point tangent to the
selected arc
The Between option is used to create a point between two selected
points by defining the ratio of the distance from the two points.
To create a pocket feature, draw the sketch and
then choose the Pocket button from the Sketch-
Based Features toolbar or from the Pockets toolbar
The sketch for the The resulting
pocket feature pocket feature
Pocket feature Pocket feature after
with the default flipping the material Drafted Filleted Multi-Pocket
material removal removal direction Pocket Features Features
side selected
To create a Groove feature, draw the sketch
and then choose the Groove button from the
Sketch- Based Features toolbar
Sketch for creating the The resulting
groove feature groove feature
The Project 3D Element tool is used to project selected 2D or 3D
elements on the current sketch plane.
Creating Hole
The preview of the hole feature is displayed, along with the Hole
Definition dialog box.
To create the threaded hole, Use the Thread Definition tab from the Hole
Definition dialog box.
By default, the Threaded radio button is cleared.
Select the Threaded radio button to display the options available in the
Thread Definition tab.
To create a tapered hole, click the Type tab of the Hole Definition
dialog box and select the Tapered option from the drop-down list
To create a counterbored hole, select the Counterbored option from
the drop-down list in the Type tab of the Hole Definition dialog box
To create a countersunk hole, select the Countersunk option from
the drop-down list in the Type tab
To create a counterdrilled hole, select the Counterdrilled
option from the drop-down list in the Type tab
Fillets
Choose the black arrow on the right of the Edge Fillet
button in the Dress-Up Features toolbar
To chamfer the edges of the model, choose the Chamfer button from
the Dress-Up Features toolbar
Adding a Draft to the Faces
A draft is defined as the process of adding a taper angle to the faces of the
model.
Adding draft to the faces of the model is one of the most important operations,
especially, while creating the components that needs to be cast, mold, or formed.
To add a draft, choose the Draft Angle button from the Drafts toolbar
To create this type of draft feature, choose the Draft Reflect Line
button from the Drafts toolbar
To create a variable angle draft, choose the Variable Angle Draft
from the Drafts toolbar
To create a shell feature, choose the Shell button from the Dress-Up
Features toolbar
