Re: [CAD_CAM_EDM_DRO] On another note...

From: <info.host@...>

> The HF start on the cutting should do only that. That is that it will only
> START the cut. The HF transmits better through the air and strike el arc
> easier. You've probably heard about Lift Arc that's been used to totally
> eliminate HF radio interference when welding round computers and stuff

that

> can't be moved. The electrode is tapped on the work and then drawn back

and

> as it is the current rises until it's ready to weld. I don't have any
> hands-on experience with a plasma cutter and CNC cutting but I would make

an

> educated guess and say it won't affect it at all. You won't be cutting
> micrometer accurate pieces will you?

No, not at all.
Hobby stuff that can be off as much as .030"-.040", or maybe even more.

> The steppers, if interfered with, will
> only judder when the arc is struck and the HF in use.

Judder?

> The cutter then dwells
> for a second or a half to 'preheat' before moving. Often a cut is started
> off the shape to prevent you getting a bump in the cut out where the arc

was

> started and burnt a little more away, it's called the lead in. HF isn't

used

> for the entire process like in HF AC TIG. I envy your plans! I have no

idea

> why because I can't think of any reason why I'd need a cnc cutter but I

feel

> compelled to transformer my oxy/acetylene rig to a space aged oxy/acety

rig

> so I can make space aged oxy/acety junk. : )

Heh, don't envy me.
I've just found a way to spend more money that I don't really have. (:>)

> I saw a guy who built a
> plasma table then built a tractor with it.... now there's something to

show

> the neighbours!

That *is* kewl.
I've got some ideas for motorcycle parts and nick-nacks and such.

Thanks for the input,

Weyland