Printer motor gearbox V2
thingiverse
Version 2 gear motor, using a recycled Canon printer motor, the axes are 2mm in diameter by 14mm and 15.5 mm long and a 625zz bearing from the rubber wheels of 3D printers. The transmission ratio is 25:1 increasing torque. Due to the spur gears it is a bit noisy, so I recommend putting a bit of bearing grease on the gears.
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