Re: edm

batwings@... wrote:

> From: batwings@...
>
> here's a site of interest:
>
> http://members.aol.com/lughaid/edm.htm

GASP! DON'T look at that page! This guy is NUTS! He has hooked
directly from the power mains to his workpiece and electrode, with a few
lightbulbs and a rectifier diode in series! This is so dangerous, I just can't
believe he really did this. (Maybe it is a troll, or he's trying to kill us!)

Anyway, a transformer for isolation is absolutely essential. What with moving
electrodes, tanks of sloshing fluid with oddly shaped workpieces in them,
and all sorts of other goings on, somebody is bound to reach in and grab
the electrode, or touch something, or maybe have the work tip over in
the tank, whatever, and definitely get electrocuted. A double pole disconnect
switch just ISN'T enough!

Please, anybody, take my word for it, that you DO NOT want to do it this
way.

I'm leaving the above URL unobliterated so that you can see what NOT to do.

Jon