CAD CAM EDM DRO - Yahoo Group Archive

RE: EDM Information (was: Low cost Servo Controller)

Posted by Alan
on 1999-09-16 15:47:27 UTC
In addition to Jon's page, there are two other sources of information about
EDMs that you may want to consider. One has probably already been covered
ad naseum in this group, but just in case.... HSM (Home Shop Machinist) had
a series of articles on building a machine with a stepper (they sell the
articles in book form now (see www.villagepress.com)

Another one which might not have been covered and which, in my opinion, is
probably a nicer design, can be found in 'Strictly IC' spanning several
issues. Because this is a copyrighted article I cannot, unfortunately,
scan and send this to you. If need be, however, I can find the address and
phone number of SIC and its publisher (Robert Washburn of Kent, WA) and you
can get the pertinent issues from him; this should cost about $15-$20.

--Alan


CG wrote:

> From: "CG" <cnk@...>
>
> Oooh! An EDM Machine?? I've been planning on using my benchtop CNC mill
for
> cutting EDM electrodes and doing some EDM die-sinking. I've had a hard
time
> finding info on current, voltage, feedrates, g-code, etc. on how exactly
to
> EDM. There hasn't been much discussion on this since I joined the list
(1-2
> mo.), and I haven't had a chance to read ALL of the archives. Does anyone
> have a good starting point or any experience in hobby-EDM? Jon Elson -
> could you repost the info Frank from Holland mentioned?

I'm not too sure what Frank from Holland sent - don't remember that.

But, take a look at my web page on my 'mini-EDM'. I used it for burning
out taps. It worked very well. If a fluid flow was added, it would do even
better. I hope that Fred Proctor has kept in mind the suggestion that there
be a way to control the feed of an axis by feeding a sensed EDM current
into one of the STG card's ADC channels.

My edm page is at :
http://www.artsci.wustl.edu/~jmelson/edm.html

Jon


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Discussion Thread

Alan 1999-09-16 15:47:27 UTC RE: EDM Information (was: Low cost Servo Controller)