Originally Posted by
Richard Gonzalez
A question for you Gary:
I know servos have encoders and close their PID loop that way. Is it possible to instead set up the servo feedback to come from a linear encoder so it is based on the actual position of the axis and not the rotary position of the servo? I think this would provide the best overall accuracy. This would require the cnc controller (not each servo controller) be involved in the closed loop positioning.