Re: Mach3 ref all home motor down't stop only slow
If the motor hits the limit switch and then reverses direction while moving slowly but never stops, Mach is not seeing the switch open again. The machine slowly backs off the switch until it returns, but if the return is not seen then it will keep moving indefinitely. I had this same problem once and I believe the cause was noise due to not using shielded cables for my limit switches. My switches are normally closed and then open up when triggered. In the closed state they were not effected by noise, but once open it became a problem.
"Experience is what you get when you didn't get what you wanted."