Customizable Fidget Spinners

This is yet another fidget spinner design meant to keep your hands busy with something while you focus. This design is customizable for whatever size ball bearing you have on hand. Instead of using three bearings, this spinner uses one bearing and some coins to add weight. Just enter the diameter and height of your bearing and select the coin you would like to use as weight.

Tip: You might want to oversize your bearing diameter based on your printer's tolerances. For a 28mm bearing I set the