775 Motor Gearbox
thingiverse
These are a free set of gears. Use as follow. 1: 20Fixed - This goes on the 775 Motor shaft 2: 30Fixed - Can be used with 775 Motor shaft 3: 40Fixed - Can be used with 775 Motor shaft 4: 4020GearFixed - Can be used with 775 Motor shaft and 40Fixed to increase RPM or any combination 5: 4020GearFree: Use an 8mm OD, 5mm ID aluminum tube as a bearing. Combines with 20Fixed, you can add or remove any number of this gear to increase the torque and reduce the RPM. Basically, stack this as much as you like. Output gear can be 40Fixed.
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