Ball Spinner
thingiverse
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/5Z8HlTWHTJQ The ball bearings on the ends are 3/4" Center bearing is 608 skateboard Works pretty good 2nd file, spinner is a little longer and the ball has been moved farther in to the sides to capture it a little more.
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