Realizing that it’s essentially a cycloidal drive meshed with a planetary gear set, he got to work in CAD and, in seemingly no time, had a design to test. You can see the full results of his ...

After he built his first design, [wyojustin] realized he could add a planetary gear that could move an hour ... s movement is a stepper motor that’s driven by an Arduino. Although [wyojustin ...

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' ...