herringbone rollers / drive system
Description
got the idea from fidget spinners. might work good to drive some wheels in non dirty environment or to roll stuff on. could even use the larger gear to rotate an object need to print still to verify measurements.. i printed and things seem really tight / hard to print easy to break , i would wait for version 2. well, after printing i realized the center gear needs to be larger it does not fit together properly.
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