Thingiverse
Rattleback
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This ancient curiosity spins one way easily, but refuses to spin the other way! Watch it instead rattle and start to spin back the other way!
(Before I realized that the key to getting jaysay's excellent design to work was a gentle sanding, I spent a week designing my own. The original still works better than this one, nevertheless, I thought I'd share.)
(Before I realized that the key to getting jaysay's excellent design to work was a gentle sanding, I spent a week designing my own. The original still works better than this one, nevertheless, I thought I'd share.)
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