Re: [CAD_CAM_EDM_DRO] CNC Router Head/Motor???

----- Original Message -----
From: "Jon Elson" <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, February 24, 2003 12:36 PM
Subject: Re: [CAD_CAM_EDM_DRO] CNC Router Head/Motor???


>
>
> Fusion X Studio wrote:
>
> >I'm building my CNC router and am almost complete. The design is
> >approximately 32"(x)28"(y)8"(z). I would like to be able to chuck a 1/4"
> >end mill and be able to cut at depths of about 6~12 inches. I don't
think a
> >router will do because of the depths I want to cut. If cutting almost
> >vertical cut the router would hit after a few inches. Preferably I would
> >like to be able to have a 6" cutter but don't know what I could use. Any
> >suggestions on a motor/head for my router?
> >
> >
> This is probably impossible. Even HUGE Cincinnatti machines in the
> 50-100 TON class
> can't make cuts like that because the cutter, itself, is too flexible.
> What material are you
> talking about? Wood only? there are some very small air-driven tools
> that can get
> down to the size of the cutter. Having a small tool down in the cavity
> is a lot easier
> than having a super-long tool extension. I think some of these air die
> grinder tools
> could handle a 1/2" carbide rotary file with a 1/4" shank, and make a
> vertical wall.
> I'm positive that it would fit with a 3/4" cutter, but I'm not sure how
> well the air
> motor would handle a tool that large. You also might be able to build a
> long,
> thin, spindle assembly that was less than 3/4" diameter, out of steel
> tubing, with
> ball bearings every couple of inches. You'd put a drive pulley on top,
> and a collet
> socket on the bottom. A quick thing to just get the feel of it would be
> a Foredom
> flexible shaft tool.
>
> Jon
>
>
> 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/
>