3 Ball Fidget Spinner

thingiverse

This spinner makes use of a standard 608 skateboard bearing in its middle hole, with 14mm steel ball bearings serving as weights. The ball bearings can be pressed into place by hand. Print two caps to fit inside the center - if they're too tight, scale them down a few percent and print again; if they're too loose, simply glue them. You can also create custom caps here. I designed a smaller 2-ball version for kids, as the large 3-ball spinner was too big for their hands. I highly recommend these bearings. Print Settings Printer Brand: Wanhao Printer: Wanhao Duplicator i3 V2 Rafts: No Supports: No Resolution: .02mm Infill: 20% Notes: Use 20% infill and 4 top and 4 bottom layers for the spinner, and 100% infill for the plugs.