Pinion with double-wall and 3.175 shaft hole

Pinion with double-wall and 3.175 shaft hole

thingiverse

My pinion keeps falling off the motor-shaft on high speeds, with this mod it keeps tight with the big gear, and is designed for 3.175 motor shafts. Printed with PET, PLA was to stiff and broke the spurs on high speeds.

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