Z axis

Maybe if you could measure the raw arc voltage and also the input to the thcad at the same time while you were doing a cut we might be able to determine whether the divider ratio is correct.

No,

So I built a whole new configuration from scratch. Instead of using axis I used gmoccapay.
With the my valves plug in it voltage measures from 0 to negative 0 and when I trigger torch it jumps up to 140-143V
So I’m guessing something with my original settings, now I have to play with the scale number so it stops jumping back and forth

That is strange, I couldn't see anything obviously wrong but it wouldn't be the first time I missed something.

Axis or Gmoccapy "should" make no difference, it is the plasmac component that does all those calculations...

Any idea as why my resting voltage keeps jumping from 0 to -000 ? It’s messing with my ark ok signal

I am surprised that it affects the Arc OK, can you tune it out with the offset.

Can you post a shot of the Config Panel.

Can you tell me what plasma cutter you are using?
Sometimes the dividers in the plasma cutters divider board are seen as being the scaling resistors by the THCAD10.
For example, the Everlast is out by a factor of 1.5 so a 50:1 divider would be 75:1
Or the Everlast 16:1 which is pretty good for the THCAD-10 but you need to calibrate as a 24:1
Its not actually the dividers fault, just how it interacts with the THCAD.

So if all else fails, use the raw arc voltage and install scaling resistors as shown in the THCAD manual but be sure to deduct the 200k resistance you already have from the required scaling resistance. I tried this onnce and it works perfectly.