Plasma THC

In the stepper.hal file you have some symbol that is causing the failure, so check that or download the config again.
As a rule, do not edit the config files with word processors, use only text editors.
@Muffin,
Proper grounding is of utmost importance when using HV/HF start plasma, every cable needs to be shielded and only one side of the shielding connected to ground, usually at the electronics side.
Even after setting up everything properly you might still get issues at arc ignition due to keyboard and mouse. Had several cases that i had to change keyboards as they had unshielded cables. Use older keyboards and mouse if you have any.

I definitely need to upgrade my torch. How about my computer? Will I just need to ground the case, or should I just try to put as much distance between the two as possible?

Power cord must be 3 prong one for US and Switzerland, 2 prong plus grounding the rest of the world. No other grounding for the PC.
Distance helps a lot.

Thanks. I have been looking at the simulator config (by_interface.parport.plasma-thc-sim) and it loads but as I have seen somewhere on the forum I also get the joint 2 error.

Is this a good framework to start from and the insert your customisations into it?

I will be trying to make it work with the Proma THC Compact. I am confused about the Arc-ok signal - where is this wired in the system?

Thanks again
John

What type of Proma THC do you have ? The SD type will work with any mill config as it has it's own controls and just sends the step/dir signals to the drive. The 150 type has outputs for UP/DOWN/ARCOK that have to be wired to the parallel port inputs or to the Mesa card inputs, this requires a different config, namely the toma_THC config for parallel port or Grotius config for parallel or Mesa.

Ok now we're talking - any config. Haven't seen Arcok output so it must be the SD. It has onyl step in step out dir in dir out. Will check to confirm this afternoon.

I guess that probably means I may struggle to display the LEDs on the VCP panel correctly but that is a minor problem,
Thanks for your speedy reply and all of the effort you put in over the years