I have Torchmate's newest ATHC unit.
When I start the cutting process the torch does its thing and starts the cut, as it's cutting the voltage display goes up and down about 4 volts each way, cyclic motion, and of course the torch is going up and down the whole time it is cutting.
I have a refrigerated dryer, motor guard filter at the plasma and a 10 foot ground rod tied to the machine table.
Sometimes (very seldom) the torch will really start to oscillate badly up and down and then fowl the tip.
I'm at my wits end with this problem. Has anyone had this problem occur on their machine that you have solved?
Thanks in advance.
Mike