Creating Formulas to form Parametric model | CATIA V5

Parametric Model
CATIA V5

Creating Formulas to form Parametric model | CATIA V5

Overview

In this Tech Tip, you will learn about Parametric model. How to rename the Parameters in an Existing CATIA V5 Model and Create Formulas for the same Parameters.

Download or Open Bolt_Techtip.zip File. (May require active subscription)

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Please follow the below steps to achieve the required result –

Step 1:

Open the CATIA Part named Bolt.CATPART.

Bolt.CATPART

Step 2:

Make sure that you are on Part design Workbench.

Select Tools | Options | Infrastructure | Part Infrastructure | Display. Activate Parameters, Relations to Display in Specification Tree. 


Step 3:

Select Tools | Formula or Select Knowledge Toolbar > select Formula.

select Formula

Step 4:

Select New Parameter of Type to add new parameterselect Length as type, Enter name as Bolt_Dia, Value as 50mm

add new parameter

Click Ok.


Step 5:

To add Relations, Select Sketch1 in the specification Tree. Right click on the Dimension as Shown select Rename Parmeter.

add Relations

Enter Parameter name as Hex_length, Right click on the value select Edit Formula.

select Edit Formula

Edit formula as Bolt_Dia*1.2 and Click Ok to create Relation.

Edit formula

Notice that Formula.1 has been created and displayed in the specification tree.

Formula.1

Step 6:

Click on Update icon to update the parameter value.

update icon

Step 7:

Similarly change the name for remaining parameters and adding formulas.

For Pad.1 rename as Pad, Formula as 0.7*Bolt_Dia

rename parameters and add formulas.

Step 8:

Click on Sketch.4 under Shaft.1, Right click on the Dimension Rename Parameter as shown below.

Rename Parameters

Rename as Bolt_Radii, Edit the formula, Enter Bolt_Radii= Bolt_Dia/2. Click Ok to display in Specification Tree.

Edit the formula

Similarly,

Rename length as Shank_Length, Edit the formula, Enter Shank_length=(Bolt_Dia+10mm)*3. Click Ok to display in Specification Tree.

Rename length

Step 9:

Click on Update icon to update the parameter value.

Click on Update icon

 

Step 10:

Change the Value of the Parameter Bolt_Dia according to that parametric model will be Updated.

Parameter Bolt_Dia

About

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