Re: ECM, The poor man's EDM??
Posted by
turbulatordude
on 2005-09-17 22:08:30 UTC
--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Graham Stabler" <eexgs@n...>
wrote:
hole from being larger than the electrode, that is until the bottom is
cut deep enough that the sides start to be eroded.
What about a rotating electrode, with one point that is a conductor.
90% of the cut would be down, 10% sideways.
Easier than EDM ? what type of power are you using ?
Dave
wrote:
>If I can envision what you are saying, the insulation prevents the
> I have kept trying but have still not come up with the electrode of my
> dreams. It is all down to the electrode in this simple gravity fed
> system. The small part that prevents shorting causes the tip to pause
> while enough material is undercut to release it, then it falls about a
> mm or so. This is not very good for the insulator but also means you
> end up with holes that have a sort of oscillating diameter. I want to
> come up with a porous insulating tip that will etch sideways freely
> just enough to allow the insulator to pass. Glass microspheres have
> been suggested, bonded to the tip. I have played with fibre glass
> cloths and braids as well and there is some promise.
>
> Not a dead duck by any means ad if the worst came to the worst a
> simple CNC control could be rigged up. Power off until a continuity
> test indicated the electrode had touched the part, back off a little,
> turn on ECM then repeat. Vary the time between feeds to try and
> maintain a specific gap. Or you could control the height simply by
> looking at the current. Either way it is easier than EDM.
>
> Graham
hole from being larger than the electrode, that is until the bottom is
cut deep enough that the sides start to be eroded.
What about a rotating electrode, with one point that is a conductor.
90% of the cut would be down, 10% sideways.
Easier than EDM ? what type of power are you using ?
Dave
>
>
> > Hi Graham,
> >
> > Have you done any more on this ?
> >
> > It is very intersting and I was wondering if you have pics ?
> >
> > Dave
> >
Discussion Thread
Graham Stabler
2004-03-01 02:44:36 UTC
ECM, The poor man's EDM??
james_cullins@s...
2004-03-01 04:51:31 UTC
Re: [CAD_CAM_EDM_DRO] ECM, The poor man's EDM??
Graham Stabler
2004-03-01 09:46:44 UTC
Re: ECM, The poor man's EDM??
turbulatordude
2005-09-16 09:47:17 UTC
Re: ECM, The poor man's EDM??
Graham Stabler
2005-09-17 12:54:12 UTC
Re: ECM, The poor man's EDM??
turbulatordude
2005-09-17 22:08:30 UTC
Re: ECM, The poor man's EDM??
Graham Stabler
2005-09-19 01:45:17 UTC
Re: ECM, The poor man's EDM??
R Rogers
2005-09-19 06:20:17 UTC
Re: [CAD_CAM_EDM_DRO] Re: ECM, The poor man's EDM??
Abby Katt
2005-09-19 08:24:59 UTC
Asian 3/1 Lathe, any good for conversion to CNC lathe?
Graham Stabler
2005-09-19 08:34:54 UTC
Re: ECM, The poor man's EDM??
turbulatordude
2005-09-19 08:57:05 UTC
Re: ECM, The poor man's EDM??
turbulatordude
2005-09-19 09:17:32 UTC
Re: ECM, The poor man's EDM??
Graham Stabler
2005-09-19 10:44:48 UTC
Re: ECM, The poor man's EDM??
Graham Stabler
2005-09-19 10:54:07 UTC
Re: ECM, The poor man's EDM??
turbulatordude
2005-09-19 10:55:31 UTC
Re: ECM, The poor man's EDM??
Graham Stabler
2005-09-19 10:56:51 UTC
Re: ECM, The poor man's EDM??
George Taylor, IV
2005-09-19 11:04:50 UTC
Re: [CAD_CAM_EDM_DRO] Re: ECM, The poor man's EDM??
turbulatordude
2005-09-19 11:50:16 UTC
Re: ECM, The poor man's EDM??
juan gelt
2005-09-19 13:55:30 UTC
Re: [CAD_CAM_EDM_DRO] Re: ECM, The poor man's EDM??
Graham Stabler
2005-09-20 01:21:49 UTC
Re: ECM, The poor man's EDM??