Summary

Cam for attaching a potentiometer to another moving arm. Designed for use in https://www.thingiverse.com/thing:4863621, saving on two potentiometer mounting hubs that would otherwise cost an additional $11.

Print with holes vertical to prevent warping when printing. Most slicers allow re-scaling so you can change the width, otherwise you can import it into a 3d editor such as Blender to change the width. This part was designed for a 6mm knurled (and slotted) potentiometer and a M2.5 screw as a hinge with a 12mm radius. A new radius may require a new model. I would be happy for someone who knows OpenSCAD to make a procedural version of this to make it easier to customize.

One last thing: I had a problem with my first print of this coming off the bed on my MK4 printbed. I don't know if it was dirty or not, but you may want to use a brim, unless you want to see if you can avoid it. You can probably leave it out though because it only came off near the end anyway.