fidget spinner
thingiverse
Yet Another Fidget Spinner! Print the outer part twice and the inner part once, all three pieces with 11 mm diameter ball bearings going into their respective holes. A standard skateboard ball bearing takes its place in the middle. First, click those 11mm balls into position within the inner part before gluing on the outer parts to secure them firmly. I've included a Freecad file for effortless customization at your fingertips.
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