Double servo coupling V2.

Double servo coupling V2. Tests to obtain a high torque coupling using two servomotors (20-25Kg / cm with 300 ° rotation) which rotate in harmony by means of two internal gears. Double internal gear servo It uses a 5mm steel shaft and 10x5x4 micro ball bearings. It needs very precise 3D printing for the gears (mine is not that precise ...).