plasmac message error

I found, you must not check ignore arc ok otherwise the thc does not work
I set the step db arc-ok delay to 5000 otherwise I had arc ok lost
The THC adjustment is not linear, rather sawtooth, what do I need to adjust?

youtube.com/shorts/87E32FPU6MA?si=Q01okq_GWM9qxRJL

 

beauxnez wrote:

I found, you must not check ignore arc ok otherwise the thc does not work

Yes, that is correct.

I set the step db arc-ok delay to 5000 otherwise I had arc ok lost

That seems to be quite a large value, have you tried doing it this way.

The THC adjustment is not linear, rather sawtooth, what do I need to adjust?

The only adjustment for external THC's from within QtPlasmaC is THC Speed%.

beauxnez wrote:

The THC adjustment is not linear, rather sawtooth, what do I need to adjust?
 

Thats Odd because height to voltage is a very linear relationship as this chart from 16000 readings shows
Ref;  linuxcnc.org/docs/stable/html/plasma/pla...mer.html#_cnc_plasma

Is the Z axis scaling set properly?
I would venture a guess at "not"

Sorry if I don't respond to everyone, I'll take note of your advice and I'll do some tests during the day (I'm off today)

"Is the Z axis scaling set properly?
I would venture a guess at "not" "


if it is this section5.6. Initial Setup   no I did not