Simple fidget toy, to poke your finger in, and spin with your thumb... Or any way you want.
After printing, I tried putting the little retainer in the hole, but it broke. So far, the ball bearings have not fallen out for me.
FidgetToy00_InnerRace.stl |
FidgetToy00_OuterRace.stl |
FidgetToy00_Retainer.stl |