Ball Bearing Spinner (7 Planets), 1/2" and 10mm versions
thingiverse
UPDATE 8MAY2017: I initially posted this with an incorrect title, which stated that the ball bearings are 1/4", but in reality, they are actually 1/2". This is a 7-planet ball bearing spinner. The design utilizes 1/2" ball bearings exclusively. The ball bearings fit snugly into their respective positions. To ensure a secure fit, I recommend using a spinner press to compress them into place. Each planet features a central channel that holds the bearing firmly in its designated position, eliminating the risk of over-insertion. As each bearing snaps into place, you'll hear a satisfying "snap" sound. ***Consider utilizing my Spinner Press to facilitate the insertion process: http://www.thingiverse.com/thing:2275122***
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