You can also use an equation to drive the circular pattern. In this section, the equation calculates the spacing angle by dividing 360° by the number of instances desired. This creates a full circle of equally spaced patterns.
-
In the FeatureManager design tree, double-click CirPattern1.
Two values appear on the part:
3 (total instances) and
120° (spacing angle).
You may need to move the dimensions to see them clearly.
-
Click
.
The Equations, Global
Variables, and Dimensions dialog box appears.
- Click Equation View
.
- In the Name column, under Equations, click Add equation.
- Select the spacing angle dimension (120) in the graphics area.
The name of the spacing angle dimension, D2@CirPattern1 (the second dimension in the circular pattern), appears under Equations.
- In the Value/Equation column, type =360/.
- Select the total instances value (3) in the graphics area.
D1@CirPattern1 is added to the equation. The equation should look as follows:
"D2@CirPattern1" = 360 / "D1@CirPattern1"
- Click OK to complete the equation and to close the dialog box.
An
Equations 
folder is added to the FeatureManager design tree.
To add, delete, or edit an equation, right-click the folder and select Manage Equations.