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Small 4:1 gearbox. Useful for hobby or teaching.


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Small 4:1 gearbox. Useful for hobby or teaching.

Materials and methods

All you need are two self tapping screws. I used 10mm long with a 6mm wide head. I also gave the gears and shafts a light greasing to stop them squeaking. Had it running nicely at over 4000rpm input so watch those fingers.
Have included a coupling that fits tight on a 2.3mm motor shaft and slips over the gearbox input shafts



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E57aa99318ee441a6abf1e5915d4b230?default=blank&size=40Ingeniero Nasr added this to the To print collection ago
3cecd31e0b0afce49524d8d00494ddd5?default=blank&size=40rietzler added this to the Sammlung collection ago
Mini 20150127 093625RCCM added this to the Gearing collection ago
F1c513f2e66e2f9288e495cf80c68ec0?default=blank&size=40ApronCricket published this design ago