Homebrew PCBs

Hi all,

When this list first started, I posted about my attempts to turn an HP
Deskjet into an EDM machine for PCBs, but I abandoned the project
after Stefan and others developed toner transfer into a reliable
system.  The EDM was just too slow compared to TT.  I've moved on to a
modified Xerox Phaser printer that puts wax directly on a thin sheets
of epoxy PCB and allows me to 'print' my board and etch it rapidly.

I know that Graham and others kept up the work on EDM and I was
wondering if anyone on the list had made any breakthroughs?   I still
think that there must be a way to reliably generate pulses fast enough
to create a PCB in a reasonable time, especially if a drill head was
incorporated to allow drilling and 'etching' with one setup.

Curt