Conveyor belt dynamic block

[jools182818570]

Hi

I am about to create a dynamic block for a conveyor belt

We have a few set widths of conveyor belt, which I can switch on or off using the visibility parameter

I want the length to be stretchable to anything from 1m to 10m

The problem I have is that under 3m long they have 4 support feet, basically at each corner of the conveyor, anything over 3m they need 4 additional support feet in the middle of the conveyor

Is there any way to get them to show only when its stretched over a certain length?

[clshade]

An Array Action can likely do that.
Post what you have so far.

[FabriCADed]

Would it work to set a visibility parameter for the support feet dependent on the length of the stretch parameter?