I'm not sure if this is a Mach3 issue. I've looked through the manual and I am not finding an answer. Here is what is happening:
I am running a Pacific Scientific NEMA 42 motor on a lathe conversion. If I press the arrow key to jog the carriage over, let up the key, and then press it back down, about 50-75% of the time, the motor will rotate in the opposite direction. If I let up the key, press down, it will usually go back to the original direction. Sometimes I have to press the key 2-3 times before it will change directions.
I ran this from the lathe module. I tried to run the motor from the mill module and it does the same thing.
Any ideas on this?