Nema 17 Stepper Motor Suction Cup Mount for Polargraph

thingiverse

This is designed to fit over an inexpensive lever-style suction cup (https://smile.amazon.com/gp/product/B08RWJFRW3) to allow you to setup a polar drawbot, like the Makelangelo, on any glossy surface. It can be mounted with everything pre-assembled, but it can also be assembled in place (e.g. place the suction cups, then slip the mount over it.) If you are using a counterweighted setup, the basic lower will work for both motors. Otherwise I've got two options for clamping the belt in place with either a pulley wheel (v-slot roller) or a regular 608 bearing. The bearing fits nicely against the timing pulleys, so that's my preference. If you go the clamped route, you'll need one each of the left and right lowers.