Re: [CAD_CAM_EDM_DRO] EDM Power Supply

Dale,

I'll be testing out my new EDM power supply this week or next. It is a 96
volt 10 amp supply with control circuitry for the power Mosfets. It's not
an RC type - this will eat through metal as compared to an RC type.

I'm waiting for larger electrodes as the ones I have now are too small (a
recommendation is 65 amps max per sq in of electrode area) and they blast
away steel about the size of a pen tip with each spark. I'll let you know
how it goes when I'm finished.

Right now I have a unit that is 100 volts and 5 amps - it works great.
Something like that may work for your application - depending on how big
your electrode is. It has outputs for step and direction - just like the
Langlois.

Let me know what size your looking at - this will determine how fast I can
help you out. Also, what kind of finish you're looking for.

James

----- Original Message -----
From: "dalegash" <dalegash@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, September 19, 2003 9:54 AM
Subject: [CAD_CAM_EDM_DRO] EDM Power Supply


> I have built a EDM hole drilling machine less the power supply. I
> have Robert Langlois book on bulding an EDM machine.I need a power
> supply design of greater power than put forth in this book.
> Commercial units put out 3.5 KVA at 30A. I think somthing between
> the Langlois desing and the commercial is what I am looking for. I
> would be interested in either a finished power supply or a set of
> plans. I have several friends interested in aquring a machine like
> mine when I get it running.
>
> Dale Gash