Parametric Design and Circular Pattern Item Extrusion

[wedontplay]

Hi, I'm learning Fusion and as an exercise I'm trying to design a fully parametric geneva wheel.

I had no problem in making the sketch part assigning formulas and constraints to sketch dimensions.

The problem I have now is with the extruded bodies.

I used a circular pattern to duplicate the sketch elements accordingly to the desired slot quantity how can I have the object part react accordingly?

The only thing it happens is that object are deleted when I lower the pattern element number, but if i use an higher number object are not created anymore.

I think I'm doing it wrong, what is the correct way to accomplish that task?

Tx.

[HughesTooling · Accepted solution]

I think what you're doing wrong is coping the sketches, you need to make copies or the features. Here's an example.

I've made an assembly of a 1:1 timing gear and belt and changing the number of teeth in the parameters dialog updates everything OK.

Mark