CNC Plasma cutters, DIY, building info and guide

Added more info to the plasma source section (well post), types of pilot arc with short description on how they function, added the reed contact arcok link.

Hi! "some" time has passed so I would like to ask how did the Stahlwerk Cut 100 work out as a CNC plasma cutter power source?

Kind regards/Stefan

stefan63 wrote:

Hi! "some" time has passed so I would like to ask how did the Stahlwerk Cut 100 work out as a CNC plasma cutter power source?

Kind regards/Stefan

I never got it, living in this country is going from shitty to extremely tough, the power just got a price hike of exactly 242 % !
I friend had a CUT 70 from StahlWerk and it worked perfectly well, granted does not like having the torch to far from material when firing, 3 to 4mm are ok, at 5 it occasionally fails to start.
Now i am trying to get a Kzubr (some Russian Chinese abomination) and i was told they have one here for 600E, it says 100A but i would bet my life it will not do over 50 or 60, but i am ready to be amazed !
Do remind me in a week or two.
BTW the 70A Stamos (or similar) that he bought instead of StahlWerk also works fine, been something like 4 months without issues.

    hi guys I bought a MESA 7I96+THCAD300 for my CNC plasma machine project a couple of years ago. So I don't really remember how and why I chose THCAD300, although I have plasma machines Stahlwerk CUT 70, as far as I know, with ARC pilot type ignition. And if I understand correctly I need THCAD 10? Is there any way to modify or adapt the THCAD300 I have to my needs? Should I buy a new one? If new, what kind?

Does not look like pilot start, there is a missing connection for a usually red thinner wire.
More pictures?

thanks tommylight for your quick reply. Well, I'm not sure about that in Arc Pilot, that's why I wrote likely. I relied on the information I was able to find on the Internet. However, I have no doubt that you are right and cutter is not an Arc Pilot. Does it change anything? I think I saw somewhere that you have implemented projects with HF plasma and THCAD300. Could you tell me where exactly those wires should be connected? anyway, if it is necessary to make this cutter work with CNC, I also have PROMA THC 150,