Re: motion controller vs breakout board...
A break out board, (BOB) is a board for interfacing different devices etc to the PC, by motion controller I assume you mean the motor controller, whether it be servo or stepper motor, this requires a set up/tuned for your application based on the machine mechanical requirements.
The term machine controller is sometimes used for the trajectory planner such as Mach.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.