As you may have guessed, the internal arrangement is a planetary gear drive. You might consider if you want to print this using resin or FDM printing. You also need some screwdriver bits ...

The videos below show you the theory: the stepper drives a sun gear with two planet gears orbiting, each of which engages a fixed ring of 56 teeth, and an output ring of 58 teeth. Each revolution ...

The Harmonic Drive is a key part of countless robotic applications. Incredibly simple yet quite odd to watch, this gear system is extremely precise with an impressive torque-to-weight ratio, even if ...

N 2 = NUMBER OF TEETH IN DRIVEN INTERNAL GEAR N 3 = NUMBER OF TEETH IN PINION MESHING WITH N 1 N 4 = NUMBER OF TEETH IN PINION MESHING WITH N 2 n = NUMBER OF REVOLUTIONS PER MINUTE OF DRIVING SHAFT n' ...