Quote Originally Posted by John S View Post
Main thing is you require a breakout board that can handle 0 -10v analogue output for the speed part.
Many BoB's have spindle relays, not many have the 0- 10v part.
I think he is being pointed toward the usb > serial (RS485 i think) lead from PC to VFD that does the control with a plugin for mach, not tried them so couldnt comment.


Rick