who has taken measures to secure a patent. It consists in secii- ring the shafts of vehicles to the axle or the ax le to the shafts, by mean s of an eye or collar with taper or conical ends ...

Interfacing a shaft to a 3D printed gear doesn’t have to be tricky. [Tlalexander] demonstrated a solution that uses one half of a spider coupling (or jaw coupling) to create an effective modular ...