EDM safety was Re: EDM Patent Book

Sigurd,

I think that I have seen that article. If I remember correctly, there is NO isolation from the power source. If this is true, Please add an isolation transformer to protect yourself and others who may use, or learn from your machine...

Hope this helps.

Ballendo

P.S. There have also been several "threads" of messages about EDM in many "popular ______" and "Mechanix" magazines over the years; often referring to Tap removal. Most of these do not have electrical line isolation; and they almost always have follow up "corrections/mods" in later issues. Be careful.

--- In CAD_CAM_EDM_DRO@y..., sblasa@t... wrote:
> Ben,
>
> I'm new to the list. I subscribed because I need help in building our
> EDM. My brother (a mechanical engineer) and I (electronics engineer)
> already have the first model running. The plans came from a 1968
> Popular Science article. I admit I don't have much background on this
> topic and your book seems like a good source of info on the subject.
> Same goes for the list, too.
>
> How much would the book cost? Do you have a pdf version (to avoid the
> shipping cost)? Just tell me your preferred mode of payment.
>
> regards,
>
> Sigurd Lasa
> sigurdlasa@h...
> Cebu, Philippines
>
> --- In CAD_CAM_EDM_DRO@y..., "Ben " <bnf@e...> wrote:
> > Boy that sure was quick. I have had several people inquire relating
> > to the EDM Patent Book mentioned in a previous Email of mine. I
> hope
> > the following answers some of your questions.
> >
> > Ben