32mm to 42mm collar/spacer

thingiverse

I didn't check the outer diameter of some 20mm bearings I got for a project, so knocked these up from a spacer from something else entirely and made the internal diameter what I needed. Tinkercad didn't give me a perfectly round hole to had to sand that down a little until the bearings just strarted to push-fit, then used a G-clamp to push them in the rest of the way. one was perfect, the other could have used a little more sanding as it delaminated slightly, but was still usable. Included the .obj in a zip if you want to edit.