Hello,
I don't have much experience with stepper motors and am having some difficulties with my z-axis. It's a 1452 OzInch stepper motor that is on the knee of a 2500 Lbs bridgeport style machine. Everything works fine, accelaration goes without problems, I can get high speed. The problem is, once in a while the motor halts. This does happen at speeds less then half of the top speed and while the knee is beyond the acceleration stage. So obviously, the motor is powerfull enough, but why does this happen? resonance?
example: the knee has allready travelled 3 inches up or down at a steady speed with a light cut, everything goes smoothly, and once of a sudden the motor stops, accompanied with the noise of a stepper that lost steps. (mach 3 keeps on counting).
thanks,
Roel