Quote Originally Posted by Chaz View Post
Sorry, for clarity.

Option A, use the Sprint drive, with the existing DC motor, controlled by the original controller.
Option B, use the Sprint drive, with the existing DC motor, controlled by a new controller.
Option C, replace the DC system with a spindle servo and different drive / controller.
OK think I understand, I purchased most of what I needed quite a while ago when I originally got the machine, that was before it got hidden in the corner & forgotten about so I have New motors, drivers, motion control, BOB etc but never got round to the spindle control. I originally looked at using the existing control box but posts I read about how to get the original drivers to work went over my head lol