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rodw wrote:

Couldn't help myself and posted at Phoronix...

Could not find it there, or using different nic?

Moved to "ethercat" section.

Usually, cutting to slow or lack of air pressure.

Blender is a monstrosity and a magnificent piece of software, so yes, it is always worth the time and effort to learn it, not only for CNC.

Sorry took a while but I did hook up a scope to a highdef plasma with HF start. Measurements taken directly between electrode and work from the 50:1 output.
I could not capture kerf crossing that well as the change in voltage was so slow and my portable scope is what it is... Closest thing to kerf crossing was running out of plate and that I could capture so I did that.
How I see from these scope captures is pretty much as I though. You can see from both 50A and 100A pierce that during pilot the voltage hits a "ceiling" that is the OCV, then drops when it transfers to plate. Then when you run out of the plate it looks to me that the voltage hits a "ceiling" that is the max DC output of the plasma, 50A and 100A look very similar.
I dont have a current probe, now at least, so I can't capture the current ramp up but in the highdef stuff I would assume this is measure in some hundreds of ms instead of ns again I cant really prove this as I dont have a current probe.

EDIT: Some typos