[CAD_CAM_EDM_DRO] Re: CNC Plasma cutter

On 9/23/04 1:41 AM, jfglass2001 wrote:

>What does a THC accomplish?

It keeps the torch at an optimal height for both starting the arc and
cutting (usually different things - which depend on the plasma unit
you're using). If you try to strike an arc with the torch too high, it
won't do anything but make noise. If it's too low, the nozzle gets
trashed and it may run into the workpiece which throws everything out
of whack.

A THC also allows you to cut material that's not entirely flat.
Probably less of a concern with smaller pieces.

Yes, it does make things nicer. But if it doesn't fit your budget, then
don't sweat it. You can always upgrade later.

Hal Eckhart - Casa Forge - Minneapolis MN - <http://www.casaforge.com>