Plasma cutter

Hi , just a note.

You could maybe make your own plasma cutter, but you would need
the cutting tips as someone else have said. The head
its self, - could possibly be made. The cooling may be a bit
difficult, and a water cooled would be the best thing.

The "starter" may be just as what a TIG welder would use. Then
what kind of gases to use, would be important.
They often use a primary and secondary gas supply.

I am not going to say much more, but I have some words of
warning. Do think about the fumes, as these may be very toxic.
You really have to think about ventilation, and I have seen
examples of real problems with this. The kind of ventilation used

for welding etc., is just not good enough. Many cut parts
submerged in water, just to reduce this problem.
Well, it was not much of an input, but ...

There is some other things - the molten metal debries you blow
away, can be a problem too. It will coat you machine, and can
give you some problems you don't see with "ac/oxy" cutting.

You also have to be concerned about the problems with shielding,
because a lot of the electronics may pick up the noise from the
unit. Also the magnetic fields may cause problems. I have seen
the magnetic field around the plasma arc, turn the CRT image
completely "upside down" when the distance between the CRT and
the arc was closer than 3 feet. Tried different shielding to
reduce this magnetic field, but it didn't help much. This may not
be a big problem, it depends on the currents. The system I refer
to, used up to 450Amps.

//ARNE