I just picked up a used Xendoll C56A (C00056A) with an Adtech 4620 controller for cheap. Turns out it doesn't have a spindle encoder, so I can't do threading on it. Anyone know what it takes to add one? I found the wiring diagram in here:
https://www.machine-controller.com/u...ntroller-M.pdf
but I don't know how to choose one that's compatible.

Thanks,

-Matt