Hi everyone,
I converted a Denford Triac to Mach3 a while ago, but due to moving house have only just got round to serious use. I'm having a problem with step loss in the Z axis. It seemed fine on basic machining, but I've now tried some 3D engraving, and I'm loosing steps. The program starts OK, but the Z axis runs up in Z so after a short while (actually about 10,000 lines of code -so quite a lot of movements) it's cutting in fresh air. I thought I was trying to move it too quickly, but even dropping acceleration to 10 and speed to 500 it still does it (I'm in mm by the way).
I'm using the original stepper motors, with drives from Arc Euro (set to 8 microsteps) and they are run through a C11 board from CNC4PC.
I can't help thinking I'm missing something obvious, but don't know what. Hopefully one of you will point me in the right direction.
Thanks
Kevin