Steel Ball Spinner

thingiverse

This is a simple spinner that I made. Should fit 15 mm (Correction: not 1/2 inch) Steel balls snugly. With good bearings it should spin for a good amount of time. I've included two versions, one with 15.5 mm holes and one with 16 mm. I haven't tested either of these yet but they should work better than the one in the photo with only 15 mm holes. (Had to melt the plastic a bit) -By the way, I got the steel balls from an old Magnetix set. UPDATE: Added a 15 mm and 15.2 mm versions for a tighter fit. Print Settings Printer Brand: Rostock Printer: Rostock MAX V2 Rafts: No Supports: No Infill: 10-30% (the heavier the better) Post-Printing If it is difficult to insert the balls, you can heat up the holes a little bit and that should help. How I Designed This I designed this in SolidWorks