[Tlalexander] demonstrated a solution that uses one half of a spider coupling (or jaw coupling ... to mate a 3D printed gear directly to a motor shaft with a friction fit or a screw.

[Tlalexander] demonstrated a solution that uses one half of a spider coupling (or jaw coupling ... to mate a 3D printed gear directly to a motor shaft with a friction fit or a screw.

Flexible couplings couple or connect rotating members such as motors and drive shafts while allowing misalignment ... constant velocity with angular misalignment. With gear or multi-jaw couplings, ...