Summary

This is a thumb wheel for bed leveling I'm using on my printer.

I'm using mostly SAE hardware, so I made the hole in the center 3.8mm and ran a #8 x 32 tap through it to cut some nice threads. Seems to work well for me so far.

The model is very simple and flat, so it prints easy and is easy to make updates to if you need. I've included the Sketchup .skp file if you want to make changes.