4-Arm Ball Bearing Fidget Spinner

thingiverse

This is a simple modification of the Ball Bearing Fidget Spinner (http://www.thingiverse.com/thing:1821445) designed by Dorikin350z (http://www.thingiverse.com/Dorikin350z). I simply imported the design into Tinkercad, copied it, and rotated the copy 90 degrees to go from a 2-arm spinner to a 4-arm one. I also very minutely increased the size of the bearing opening; the ceramic bearing in the one I printed still fits quite tightly, but doesn't seem in danger of over-stressing the spinner body. The design requires one skateboard-sized bearing and four 5/8" ball bearings. The picture of the printed one features bearing buttons printed from http://www.thingiverse.com/thing:1866001. The finished spinner works well, with lots of heft to it and a nicely balanced feel while rotating. This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/2f0VQ7VQVwS