Late to the show and a lame attempt but here you go. Definitely fun to play with. Son says they would sell at school for $15. Short story, I made a homemade cnc and didn’t like it so I bought a real one and got the Xcarve. I have left over about 80 bearings from the original build. Might as well put them to use. Might give it another go soon.
Check out this project and enter the Fidget Spinner Community Challenge!