Quote Originally Posted by Azalin View Post
I have M16 (successor of M16D) board on my lathe. Spindle motor is an induction motor. I added an incremental encoder to the spindle. This way I can do threading. With the same logic I should be able to rigid tapping on the mill too. Because both machines use different motors but same analog control. Both have encoder feedback.

I confess that I may be never do rigid tapping but since I'm in the middle of my scratch project my aim is the best I can have. You know, rigid tapping sounds cool : d
Your Drive should not disable when you stop the 0-10v supply, so you have something wired incorrect

Servo On should be on it's own circuit