Re: [CAD_CAM_EDM_DRO] Re: EDM troubles - update

floculent?
We built settling pans for wire edms, usings nested pans where the slow
moving water had to
exit one pan by flowing over its edge into the next. Particulates settle out
rather than go over
the edge when the flow is slow. So, a baffle will do the trick , given enuf
baffles, slow enuf
velocity but high enuf volume makes a simple solution. Worked better than
specialized
sub-micron filters!
tomp

----- Original Message -----
From: turbulatordude <davemucha@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, August 24, 2003 9:22 AM
Subject: [CAD_CAM_EDM_DRO] Re: EDM troubles - update


> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "tomp_tag" <tomp_tag@i...>
> wrote:
> > What was this stuff from?
> > I've seen bad servo tuning hammer and create largish flakes in
> cavities
> > looking like shavings but they conducted (and were shiny).
> > Was this stuff passed thru you flushing system?
> > You got a blowd up filter?
>
> filter ? what's a filter ? ?:)
>
> I have a 5 gallon bucket on the shelf and a 5 gallon under the work.
> it uses somewhere around a quart or two per hour.
>
> The sediment is black and fluffy. I'm still looking for a good or
> acceptable flocculent. (a substance that will help particulates
> coagulate and fall out of the water)
>
> I'm asuming that the flushing is poor at best, just peeing on the
> outside of the electrode, and the tap flutes probably let a lot of
> sediment past so now, I'm trying to get past the sediment as well as
> the tap.
>
> Dave
>
>
>
>
> > tomp
> > ----- Original Message -----
> > From: turbulatordude <davemucha@j...>
> > To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> > Sent: Saturday, August 23, 2003 7:22 AM
> > Subject: [CAD_CAM_EDM_DRO] Re: EDM troubles - update
> >
> >
> > > Hi all,
> > >
> > > a week or so ago I ran into the problem that by pulling the
> electrode
> > > out of the part (dinner time and I didn't want to leave it
> > > unattended) that I could not resume sparking.
> > >
> > > This happened a few times. I tried to wire brush the copper, use
> > > scand paper, all to no avail.
> > >
> > > on a bearing race, I pulled the bearing out and found that in the
> > > bottom of the cut was a fluffy substance, similar to the stuff at
> the
> > > bottom of my water tank.
> > >
> > > evidently, by stopping the cut and waiting for some time, the
> stuffs
> > > in the water will settle and for some reason that stuff is not
> > > conductive so does not spark.
> > >
> > > a little compressed air and presto! now I gotta paint the ceiling.
> > >
> > > now, I can look forward to answering the new-age question of which
> > > happens faster, edm work or paint drying......
> > >
> > > Dave
> > >
> > >
> > >
> > >
> > >
> > >
> > > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
> > > <davemucha@j...> wrote:
> > > > Hi all,
> > > >
> > > > simple RC EDM unit. after test drilling some holes in steel
> with a
> > > > copper electrode, I pulled the electrode out mid spark to
> inspect
> > > the
> > > > progress and now it does not start to spark easily.
> > > >
> > > > It went from full voltage to sparking voltage without a spark,
> then
> > > > quickly went to a short.
> > > >
> > > > do the electrodes get dirty with carbon ?
> > > >
> > > > any suggestions ?
> > > >
> > > > Sparkless in New Jersey. (Dave)
> > >
> > >
> > > Addresses:
> > > FAQ: http://www.ktmarketing.com/faq.html
> > > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > > Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> > >
> > > Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> wanliker@a...,
> > timg@k...
> > > Moderator: pentam@c... indigo_red@q... [Moderators]
> > > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> > >
> > > OFF Topic POSTS: General Machining
> > > If you wish to post on unlimited OT subjects goto:
> > aol://5863:126/rec.crafts.metalworking or go thru Google.com to
> reach it if
> > you have trouble.
> > > http://www.metalworking.com/news_servers.html
> > >
> > > http://groups.yahoo.com/group/jobshophomeshop I consider this
> to be a
> > sister site to the CCED group, as many of the same members are
> there, for OT
> > subjects, that are not allowed on the CCED list.
> > >
> > > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING THEM.
> > DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > > bill
> > > List Mom
> > > List Owner
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
timg@...
> Moderator: pentam@... indigo_red@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>