Quote Originally Posted by terry1956 View Post
Hi jazz, I fitted a closed loop motor and driver to my last machine, and it did not like it. It may of been that I only used it on one axis. But it could of been me. However I have read on a few forums that people have had a few problems. I think if ever I get this mill working as it should I will fit closed loop on all axis.
Hi Terry, I can assure you 100% that the Cslabs or any other open-loop Step/Dir controller for that matter knows nothing about the drive which is attached, they just send out pulses and trust the drive receives them. Now, you can get drives that handle pulses timings differently but I've yet to see a Closed-loop drive or any drive for that matter that doesn't work with the Cslabs controller. However, pulse timing issues can usually be dealt with in the control software motor tuning.