Re: hypertherm 65 divided arc signal voltage low
I don't know your cnc controller, plasma cutter or THC software but I have had some funny things happening like that. If you changed your OS than thats what I would suspect. I think I would disconnect the plasma cutter from the CANDCNC hardware and measure the divided voltage output with a multimeter when doing those nice clean cuts.. I have had an instance where the sensing circuit had an impact on the divided voltage. effectively increasing the divided ratio by about 1.5 times (eg fro 50:1 to 75:1).
Without knowing your hardware, so I don't want to blow anything up on you, but the next thing I would try would be to hook up a 3 volt battery to the divided voltage input on the THC. 3 x 50 = 150 volts so it would be interesting to see what Mach reports in that case.
Rod Webster
www.vehiclemods.net.au