I have a stepper motor (this one). Its shaft is of type "oval" or whatever, so like a circle but with 2 flat sides.
Imagine the motor shaft pointing straight up, in the z-axis. I want a 6-inch rod, or shaft, (honestly doesn't really matter, I just want a rigid metal stick of some sort) to stick out from it. I.e. So that when the motor spins, this rod/shaft is creating a circle in the x-y plane.
I've gathered that what I want is a "coupler", possibly a "flexible coupler" which connects shafts which are NOT parallel.
1) Is there a standard term, or language, for describing my motor's shaft, as well as the coupler which would connect my shaft to a metal rod?
2) Am I even choosing the right things for this task of spinning a rod perpendicular to the shaft's axis?