Quote Originally Posted by bill4807 View Post
If you cannot get full 4th axis. Other options are use a Beta I/O link drive to control a rotary table. Or tsudacoma external axis controller.
That's precisely what I wanted to try and do, but the optic cable from the beta I/O link would have to plug into a spare optic port on my main servo/PSU drive which only has one optic port (being used by the 3 axes)

Would be nice if I could swap out the logic board for one that has it, but I'm sure there's no way that would work either.