Homebrew_PCBs

I read it to be Electrical Discharge Machining.
http://www3.telus.net/public/aschoepp/edm.html

Regards,
S.Ramamurthy

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:

> On Fri, 01 Jul 2005 06:48:17 +0200, mikegw20 <mikegw20@h...> wrote:
>
> > EDM? I had a quick search in the messages and I get the feeling

it is

> > some sort of electrode ablative process. Does someone have a

link or

> > two that spells it out so I don't have to pester you with silly
> > questions.
> > Thanks
> > Mike
>
>
> Yes it is electrodynamc milling.
> Basically a series of sparks eordes the workpiece.
>
> It is done under a fluid (water or special oil), and there are

many

> different methods (wire EDM, sinking, ...).
>
> The advantage over mechanical milling would be way better

resolution, no

> expensive cutters to buy that dull quickly.
> No cutting into the epoxy, the result wold look just like

chemically

> etched.
>
> I've seen a few machines in a factory and was intrigued by it ever

since.

>
>
> ST