Homebrew PCBs

Hi Curt,
Do you have more detailed info on EDM how it is done and with *home* 
built gear, I am interested in learning how to build and use EDM for 
PCB. Happy to receive info offline if not on list.
Bengt

--- In Homebrew_PCBs@yahoogroups.com, "curt_rxr" <cwrxr@e...> wrote:
> 
> I tried EDM on PCB's a year ago and while you can do very fine 
traces
> ( for BGAs and the like ), it is a VERY slow process, even when you
> use post process etching to remove large copper areas.