CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] high-performance EDM power supply

on 2003-07-17 17:18:59 UTC
Hmmm... I just thought if the requirements were clear, this would
be one of those circuits Mariss could whip out in a few minutes
and post to the files section ;^)

I'm sure there are at least a few people on the list that would be
capable of devising a circuit if the requirements were clear. Can
we start a list of requirements that would be typical of a modern
EDM power supply? This way, anyone who wants to tinker with a
circuit doesn't also have to be an EDM-guru. We can start by
filling in the blanks on the following topics, and adding any
others that are relevant. If there are enough responses, I could
try to compile the info into a single reference document for those
who might want to work on the electronics.

Here are some starter topics (please insert whatever you know, or
add new topics):

* "Ideal" power pulse characteristics (such as on vs. off times,
frequency, pulse shape, etc)
* Voltage and current requirements (typical ranges, peak vs.
continuous current, etc.)
* Requirements of machine motion to sustain optimum burn (feedback
loop - constant gap?, constant voltage? etc.,)
* Comparison of typical cutting speeds vs. power supply for
different machines (eg, XX in^2 per hour with a XXX watt supply,
on a XXX brand wire/sinker EDM machine)
* Difference between wire and sinker EDM power supply
characteristics.
* What parameters should be adjustable, and in what ranges?
(voltage, current, frequency, on/off times, etc.)
* What parameters are used to control surface finish?
* What parameters should be controlled by the power supply, by the
machine controller, or by the user?
* Etc:...


Regards,

Carlos Guillermo
VERVE Engineering & Design

-----Original Message-----
From: Jon Elson [mailto:elson@...]
Sent: Thursday, July 17, 2003 10:02 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] high-performance EDM power supply


Carlos Guillermo wrote:

>Hi All -
>
>Has anyone designed an "affordable" high-performance EDM power
>supply? Mariss, wouldn't this be right up your alley?? This is
>begging for somebody who knows power electronics and (maybe)
>microcontrollers to design it and offer a kit with plans and
>PCB's.
>
>
I've sketched out a few things, but haven't had time to get into
it.
I think it is getting into voltage ranges Mariss may be scared to
tread, for liability reasons. Also, he is in the business of
selling
tens of thousands of drives a month, and this is not likely to
come near that volume.

I was planning a simple on/off pulser, but some descriptions of
the arc starting circuits of a commercial 1970's vintage EDM
made it clear that better circuits could be made without great
additional cost.

Someday....

Jon

Discussion Thread

luisguillermo98 2003-07-14 07:08:28 UTC LOOKING for homeshop EDM or its power supply? Marcus and Eva 2003-07-14 08:30:19 UTC Re: [CAD_CAM_EDM_DRO] LOOKING for homeshop EDM or its power supply? luisguillermo98 2003-07-15 20:01:55 UTC Re: LOOKING for homeshop EDM or its power supply? Marcus and Eva 2003-07-15 21:02:26 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? turbulatordude 2003-07-15 21:13:25 UTC Re: LOOKING for homeshop EDM or its power supply? luisguillermo98 2003-07-16 12:26:42 UTC Re: LOOKING for homeshop EDM or its power supply? luisguillermo98 2003-07-16 18:16:16 UTC Re: LOOKING for homeshop EDM or its power supply? Jerry Kimberlin 2003-07-16 18:34:02 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? Marcus and Eva 2003-07-16 18:48:22 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? turbulatordude 2003-07-16 19:06:35 UTC Re: LOOKING for homeshop EDM or its power supply? Marcus and Eva 2003-07-16 22:05:36 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? Jerry Kimberlin 2003-07-16 23:58:58 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? turbulatordude 2003-07-17 02:48:42 UTC Re: LOOKING for homeshop EDM or its power supply? Graham Stabler 2003-07-17 04:11:42 UTC Re: LOOKING for homeshop EDM or its power supply? Jerry Kimberlin 2003-07-17 08:22:54 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? Jerry Kimberlin 2003-07-17 08:23:21 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? turbulatordude 2003-07-17 08:37:29 UTC Re: LOOKING for homeshop EDM or its power supply? Marcus and Eva 2003-07-17 08:39:08 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? Carlos Guillermo 2003-07-17 09:25:10 UTC high-performance EDM power supply Jon Elson 2003-07-17 10:03:54 UTC Re: [CAD_CAM_EDM_DRO] high-performance EDM power supply Graham Stabler 2003-07-17 16:47:06 UTC Re: high-performance EDM power supply Carlos Guillermo 2003-07-17 17:18:59 UTC RE: [CAD_CAM_EDM_DRO] high-performance EDM power supply rfraga@s... 2003-07-17 18:54:58 UTC [CAD_CAM_EDM_DRO] high-performance EDM power supply turbulatordude 2003-07-17 19:39:40 UTC Re: high-performance EDM power supply Carlos Guillermo 2003-07-17 23:21:37 UTC RE: [CAD_CAM_EDM_DRO] high-performance EDM power supply Carlos Guillermo 2003-07-17 23:23:33 UTC RE: [CAD_CAM_EDM_DRO] Re: high-performance EDM power supply eexgs 2003-07-18 02:55:09 UTC Re: high-performance EDM power supply turbulatordude 2003-07-18 05:46:07 UTC Re: high-performance EDM power supply - software Jerry Kimberlin 2003-07-18 07:44:40 UTC Re: [CAD_CAM_EDM_DRO] Re: high-performance EDM power supply Jerry Kimberlin 2003-07-18 07:44:41 UTC EDM vs ECM Graham Stabler 2003-07-18 07:56:23 UTC Re: high-performance EDM power supply turbulatordude 2003-07-18 08:12:16 UTC Re: high-performance EDM power supply Carlos Guillermo 2003-07-18 08:59:14 UTC RE: [CAD_CAM_EDM_DRO] Re: high-performance EDM power supply Marcus and Eva 2003-07-18 09:03:21 UTC Re: [CAD_CAM_EDM_DRO] Re: high-performance EDM power supply - software Jon Elson 2003-07-18 09:57:45 UTC Re: [CAD_CAM_EDM_DRO] Re: high-performance EDM power supply rfraga@s... 2003-07-18 11:48:39 UTC [CAD_CAM_EDM_DRO] Re: high-performance EDM power supply turbulatordude 2003-07-18 14:24:31 UTC Re: -- EDM power supply -- two paths Raymond Heckert 2003-07-18 15:54:53 UTC Re: [CAD_CAM_EDM_DRO] Re: LOOKING for homeshop EDM or its power supply? Graham Stabler 2003-07-19 09:02:08 UTC Re: high-performance EDM power supply - software Graham Stabler 2003-07-19 09:24:15 UTC Re: -- EDM power supply -- two paths Carlos Guillermo 2003-07-19 14:21:41 UTC RE: [CAD_CAM_EDM_DRO] Re: -- EDM power supply -- two paths Graham Stabler 2003-07-20 01:42:45 UTC Re: -- EDM power supply -- two paths