Planetary Gearbox with Handcrank

thingiverse

I am currently working on a manual water hose pump with a high-speed rotary mechanism. A 1:4 gearbox has proven useful for achieving the required spin rate. To enhance durability, I've adapted an improved design capturing all four planets. While the pump function needs further refinement, the hand-cranked gearbox could be beneficial to others. I repurposed a Moineau pump hand crank, as it was readily available.