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Author Topic: Disable THC Temporary  (Read 1155 times)

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Disable THC Temporary
« on: November 23, 2014, 07:09:28 AM »
Hi! I have THC control on my plasma torch. It works good
but sometimes i would like to disable it in an easy way when i
read reference arc voltage for new materials.
I have a THC ON/OFF button in the gui, but that doesnt seem
to do anything. Everytime i must go without THC i disable all the
THC inputs in "ports and pins" but it feels like there should be an easier
Way to Temporary disable the THC logic?
Re: Disable THC Temporary
« Reply #1 on: December 01, 2014, 12:18:58 PM »
i disable thc by using a dpdt relay controlled thru an mcode. that will break the connection to your breakout board. i use m8 to turn on the relay which disables the thc. m9 turns off the relay which enables thc signal to the breakout board. create a button for your screen and click on for thc off or on. you can turn off and on in your gcodes. turn off for cutting small holes . works well for me . you can also add a simple joystick to the relay terminals and use it to control height manually with  thc turned off.