Hey guys
I got the same problem but, I have actually seen the ARC OK - TORCH ON signal on mach3. It appears when the sensor ring tourch the plate ("touch" on thc leds). I should appear when is in probe ("in position" on thc leds).
I read that you solved the problem with a relay, well, it can work to me too, bur i think is more cheaper an proper to put that signal on the right position, any suggestions?? Have you heard somebody that can solve this without the relay?
Thanks a lot.