This is all new territory for me so pardon the newbie questionsAs the controller linked in post #18 is specifically designed to drive motors, a flyback diode is probably already on board.
In any case, as Bluejets stated, you can mount the flyback diode also in parallel to the motor connections. No need to solder it to the controller pcb.
how would you go about choosing such a thing and would that be wired to the motor leads? simply connect a diode to one of the leads and hook wide to other end and of you go or is more complex than that?
thanks