Re: [CAD_CAM_EDM_DRO] re: more box ways

Sorry,

Replied to the wrong message

Bill

William Scalione wrote:

> Tom,
>
> Download a program called PKZIP from here
> http://www.pkware.com/
> you get a 30 day evaluation. That should do it, but you
> need to rename them back to the original names.
> WinZip will not do multiple disks unless you put them on
> a floppy, so I downloaded this. They are the originator
> of the ZIP file.
>
> scalione
>
> ----- Original Message -----
> From: "Elliot Burke" <elliot@...>
> To: "CAD_CAM_EDM_DRO" <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Monday, April 22, 2002 12:07 PM
> Subject: [CAD_CAM_EDM_DRO] re: more box ways
>
> > Thanks to ballendo and George for the detailed enough answer to my vague
> > questions.
> >
> > There are two machine tools in particular that seems most magical to me.
> One
> > does what they call deterministic microgrinding. The idea here is that
> with
> > a stiff enough machine and a relatively coarse grit diamond grinding tool,
> a
> > surface can be produced on glass or ceramic that is essentially polished
> > with a very high form accuracy of a few nm.
> > The other is the diamond turning lathe, which turns an aluminum or nickel
> > surface also to a few nm finish and 10's of nm accuracy.
> > There was quite a bit of open literature on this subject while these
> things
> > were in development a few years ago, now that the machines work they don't
> > seem to be writing much about how they work.
> >
> > I have long wondering if there was any overlap between their mechanics and
> > more conventional CNC machines.
> >
> > For example, a calculation was presented showing the limit in accuracy
> > caused by the limited thermal conductivity of and high thermal expansion
> of
> > turcite/teflon. It was small but signficant on the nm scale for certain
> > cutting profiles.
> >
> > Of course ways are only 1/3 the problem with these machines, spindles are
> > another third, positioning and feedback the third.
> >
> > Elliot Burke
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >
> > 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 as 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.
> >
> >
> >
> > Post messages: CAD_CAM_EDM_DRO@yahoogroups.com
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> > 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/
>
> 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 as 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.
>
> 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@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/