Re: [CAD_CAM_EDM_DRO] Re: Re: Belt vs. Direct Drive

Climb Milling, the most misunderstood term for the home shop
machinist. The reason to use climb milling is simple, it leaves
a much smoother finish on most materials, especially aluminum,
than conventional milling. With care I regularly use climb milling
on my 20 year old Sherline mill. For practice, bolt a piece of
aluminum plate to the table, yes make sure it is tightly attached to
the table. With a 3/8 spiral end mil, take a .005 deep pass using
a conventional mill pass to size up the setup. Now preload the
'X' axis lead screw with one hand by pushing against the end of the
table opposite the direction the table is fed. Without the cutter
engaged in a cut, move the table in .002. Now by preloading the
lead screw, take a light climb mill cut and notice the improvement in
finish.
On my larger mill-drill machine I can take a light pass without
preloading the lead screw. The essentials are straight forward,
a good tight setup, sharp tools, close attention, do not get in a hurry
and practice. Now when edge milling on either machine I take
passes in both directions to save cranking time and always finish
with a light climb mill pass. Yes if climb milling is done incorrectly
problems will occur, proceed with caution.
John

----- Original Message -----
From: "alex" <telecomt@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, January 04, 2003 7:12 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Re: Belt vs. Direct Drive


> Ron,
> I would like to know how you do it, but it is probably outside of the
scope
> of this group...
> Alex
> ----- Original Message -----
> From: Ron Kline <godsone@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Saturday, January 04, 2003 7:57 PM
> Subject: Re: [CAD_CAM_EDM_DRO] Re: Re: Belt vs. Direct Drive
>
>
> >
> >
> > alex wrote:
> >
> > >Granted - climb milling is a special case. I remember I broke a mill
bit
> > >even on
> > >a huge hydraulic mill - don't remember what make, it was 25 years ago.
> > >(this contributed to my search for a new career).
> > >
> >
> > >It probably can be avoided in a CAM. Don't think Bridgeport will do
climb
> > >milling.
> > >
> > Yes a Bridgeport will climb mill just fine .
> > I do it daily but you have to know how .
> >
> > Ron K
> >
> > >
> > >
> >
> >
> >
> >
> > 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@...
> > Moderator: jmelson@... timg@... [Moderator]
> > 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@...
> Moderator: jmelson@... timg@... [Moderator]
> 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/
>
>