Hello Michael,
I wanted to design a roller pinion and got stuck. I think I need a cycloid curve and was wondering if there was a way to get this in MoI.

Basically a roller pinion looks like this:



I want to draw this in MoI, which would need curves like this:



I got stuck on an arc, and figured out it wasnt the curve I need. I did a 3 point arc like this:



Here's a file attached too. Eventually, the blue circles would be included. I just start with a quad seperated circle for simplicity.

So I think I figured I needed a cycloid curve and have found some math that derives this. Is there a way with one of the MoI tools for me to draw out this path?

Maybe Bemfarmer's next parametric script? :o

Thanks.