Brand new to the group

At this time it seems I must do plenty of reading just to get on
board with you guys. I did build the EDM setup somewhat like Langlois
described. I followed his instructions for the stepping motor feed
etc but I'm using a light bulb for the resistors and this works fine
for what I've done so far. I have sparked square holes in boring bars
to fit the HSS bits I use. I used some hollow square brass tubing for
the electrodes and the fits are amazing. Richard