Hi, from my own findings, the Z axis stepper motor on a StarMill is a Centronic Dynamics HY-200-3424-310-A8. The Italian company, MAE Offanengo, still make the HY200-3424-310A8 stepper motor under the same part number, which is a NEMA 34 hybrid stepper motor, with 200 steps per revolution, is 2.4" l...

Hello all, I am having a problem with the spindle speed on my 1994 Starmill PC, running on Mach 3. In short, if I run the spindle at max RPM (3000), after a few minutes of running, it stalls. Even when not under load. I have also noticed that the speed is varying (hunting) when at max RPM. If I run ...

Hello all, This is my first post here. I am the recent new owner of a Denford Starmill. I had an issue with the stepper motors randomly pulsing while the spindle was running. I was going to ask on here for some advice, but I have since resolved the issue myself. I thought I should still write a post...