>There's even a fellow in the Windsor ON area (member of the
>Detroit metalworking club) who has made one from scratch himself.
>Mr. Robert Langlois, if I got the spelling right.

You don't happen to know if there is a web page, do you? This sounds like an
interesting way of doing things.

I knew about the application for making moulds for plastic moulding, but not
for cutting, always assumed lasers were used for this (but the one material
they apparently have problems with is Aluminium.)

Another item used for the electrode in spark erosion is carbon. We had some
moulds done like this a good few years ago now, and it produced a very nice
"orange peel" finish on the plastic from the erosion pattern on the mould.

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