Homebrew PCBs

Does anyone have more information on this light bulb EDM mentioned in
the list. Could not find any references using google.


--- In Homebrew_PCBs@yahoogroups.com, Curtis Richards <cwrxr@e...>
wrote:
> Richard Mcfarlane wrote:
> 
> >Hi Curtis,
> >>From Homebrew PCBs-Groups, I came to know about your
> >interest regarding EDM.
> >I am also an EDM diy hobbyist like you. I built
> >several EDMs from the following plans :-
> >
> >1. Build This Space-Age EDM -( Popular Science,Mar-68)
> >2. A Light-Bulb EDM Project--(Meadre Hanks)
> >3. A Spark-Erosion Machine--(C.Roy Amsbury)
> >4. An Workshop EDM--(Peter Rawlinson)
> >5. Build This Shop EDM--(Robert Langlois)
> > I observed these machines have poor mechanical
> >constructions and moreover the EDM power supply are
> >RC-Types.These are very slow and crude metal removal
> >process and presently obseleted.