Hello new to here with a question, I have a homemade welding positioner with a 12 volt dc geared motor with a pulse width modulator for the speed control, forward and reverse switch, and on off switch, my problem is when I'm welding in Ac tig the positioner shuts off after a handful of seconds of welding, it's never consistent when it shuts off, sometimes you can make a full rev other times not even a few degrees. I have all the electronics and the motor insulated with non conductive plastic from the rest of the frame work. My only guess is either static electricity or the frequency of the welder is interfering with the pwm causing it to **** off. Any help will greatly be appreciated!! Thanks
Devin Redemske