Your trying to control 300 volts dc at 10 to 30 AMPS. They are expensive
trying to keep from electrocuting the operator.

Good luck

Jim Vrzal


wrote:
Other than getting the halfnium-which should be readily available as a
consumable- what would be so hard about building a plasma cutter?

Is the high voltage pulsed or regulated or otherwise timed? What is
the voltage of a plasma cutter and current for a decent machine?
Yah, I know, what is decent?

Why are these beasts so expensive?