Homemade, cheap, plasma CNC

Well it’s been a while.

This CNC is an absolute workhorse! I love it!

Everything works and just keeps chugging away, thanks to the amazing support from all the guys and girls on here.

Check out some of the cool stuff we make here.
https://youtube.com/@rnjfabrication4291

Well, after 6 years, it’s time to say good bye to this baby. It’s about to leave and move to its new home.

Stay tuned to see my new build that I started last night.

Much the same, just a bit bigger, and faster, and more powerful.

Thanks for all the help and support. I’m probably going to need it for the next one as well.

Cheers

So in its new home now.

Guy has upgraded to 2.9.3.

Now the arc ok only works once per job. So if it’s got 4 cuts, arc ok and thc works on the first cut, but after this it fails out until you select ignore arc ok.

Doesn’t happen on my new machine setup the same.

Heading there now to check it out.

Any ideas?

Thanks Tommy,

Here now trying to fix it.

First cut is fine. Second cut won’t create an arc ok. Everything off including thc.

Light on the Mesa goes the first time, but second time halshow and hardware all show that arc ok doesn’t change and the input on the Mesa board doesn’t change.

Thanks Tommy.

Figured it was program as it all worked on the first cut.

Turns out I had to drop the high voltage arc ok from 250 (which is the setting on my machine) to 200. Once this was done it activated arc ok ever time.

Cheers

I thought you upgraded your machine to a Hypertherm 45XP or similar.
If that is the case, please use the Arc OK output on your plasma cutter as it will save you issues in the future.
You can get the cable (and the interface) for your plasma cutter from QWS in Brisbane