Re: [CAD_CAM_EDM_DRO] Re: newbie Question

ive taken notes on the cutters to have!

back to the original question, stepper motors, servo drives etc, what sort
of specs am i going to need? there is a place not too far away that get in
lots of surplus stuff, i have seen stepper motors there once before. if i
remember correctly they were 125 volt units. about 4 inch diameter and
about the same in length. at that time i didnt have a use for them so i left
them there. someone picked them up tho!.

i Have AutoCADLT , is that suitable for cnc work? or do i need to upgrade ?

Ken

----- Original Message -----
From: Brian <ka1bbg@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, September 26, 2002 5:11 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: newbie Question


> Hi, stellite, yep good stuff, some people were calling "Rexalloy" stellite
> when it is actually Tan-Tung Tantalum Tungsten, most made by VR Wesson
under
> tantung 144....tantung is tuff and strong yet with a little care on a
> grinding wheel they last for ever and can be run with the tip red hot and
> not destroy the hardness, melting point is about 5000 deg f. cul brian f.
> ----- Original Message -----
> From: "Jon Elson" <elson@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Thursday, September 26, 2002 2:35 PM
> Subject: Re: [CAD_CAM_EDM_DRO] Re: newbie Question
>
>
> > Ken Retallick wrote:
> >
> > > Carbide maybe eventually. at this stage just the standard HSS
cutters.
> >
> > I have basically given up on HSS for most work, and no longer buy it.
> > I guess I got spoiled and started learning with a cache of old Stellite
> > cutters. They lasted FOREVER! I thought the WERE HSS, but they
> > are much better. Stellite is not available much, anymore, but Cobalt
> > tool steels, like M42 and M57 are very common, cost only cents more
> > than the HSS tools, and last many times longer.
> >
> > The Chinese HSS tools sold at a discount by many of the machine shop
> > supply outfits, in the blue tubes with rubber-stamped labels, no brand
> > name, are ABSOLUTE CRAP! I won't buy them any more, for sure!
> > SOme of them look like they were sharpened by hand by a blind man!
> > And, that is an insult to the blind!
> >
> > But, even brand-name HSS cutters just don't last very long, compared to
> > M42 and such cutter materials. Next time you buy cutters, check out the
> > prices and get some standard end mills in M42. You'll never go back
> > to HSS. With even good HSS cutters, I can easily see (sometimes without
> > any magnifier!) edge wear after just minutes of cutting aluminum sheet
> > panels, probably 6061-T6 or similar alloy. With the M42, I can run them
> > all day before the wear is apparent with a magnifier. With solid
carbide,
> > the finish on the cutter just begins to shine after a day of work. But,
> carbide
> > is not forgiving of mistakes, hitting the fixture or vise, being
dropped,
> etc.
> > Solid carbide is so cheap, now, that I am starting to use it quite a bit
> in
> > the smaller sizes. Tool flex in the 1/8" sizes is a big problem. Try
> cutting a slot
> > with a 1/8" HSS cutter at full width, then try it with a solid carbide
> cutter.
> > The HSS slot will wander all over the place due to tool flex, the
carbide
> will
> > be very straight.
> >
> > Jon
> >
> >
> > 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.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> >
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> > bill,
> > List Mom
> > List Owner
> >
> >
> >
> > Your use of Yahoo! Groups is subject to
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>
> 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.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>
> Post messages: CAD_CAM_EDM_DRO@yahoogroups.com
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> bill,
> List Mom
> List Owner
>
>
>
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