RE: [CAD_CAM_EDM_DRO] Long X axis Method of travel.

Ooops,
I just remeber, I visited your site before.
Peja

-----Original Message-----
From: Robert Campbell [mailto:bob@...]
Sent: Thursday, November 13, 2003 7:17 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Long X axis Method of travel.


Peja,

The problem that I had was with racking of the Gantry. This can be overcome
by proper design.

For machines 4' by 4' or smaller, I recommend my design using a moving table
with a fixed (bolted down) bridge.

Bob Campbell
http://www.campbelldesigns.com
Breakout Boards
VisualMill 5.0 basic

----- Original Message -----
From: "Miroslav Pejic" <peja@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, November 13, 2003 8:20 AM
Subject: RE: [CAD_CAM_EDM_DRO] Long X axis Method of travel.


> Hi Bob,
> What problems can give lead screw down the center under the table?
> Please explain.
> Peja
>
> -----Original Message-----
> From: Robert Campbell [mailto:bob@...]
> Sent: Thursday, November 13, 2003 4:44 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] Long X axis Method of travel.
>
>
> Dex,
>
> Rack and Pinion driven from both sides seems to be popular.
>
> A lead screw down the center under the table can give you problems if it
is
> not designed properly.
>
> I have some new 639 oz/in stepper motors for sale that may be of interest.
>
> Bob Campbell
> http://www.campbelldesigns.com
> Breakout Boards
> VisualMill 5.0 basic
> ----- Original Message -----
> From: "dex367" <dexlabboy@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Thursday, November 13, 2003 7:17 AM
> Subject: [CAD_CAM_EDM_DRO] Long X axis Method of travel.
>
>
> > I am in the preliminary process of designing a 4 axis machine using
> > open loop stepper motors and a PC. It will be used to route wood. The
> > X axis needs to be 96 inches long. That about 2.4 meters.
> >
> > What would be a good method to drive this long lenght?
> >
> > 1. Tooth Belt Drive
> > 2. Rack and Pinion
> > 3. Lead Screw
> > 4. Other?
> >
> > Dex
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
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> >
> > OFF Topic POSTS: General Machining
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> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
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OT
> subjects, that are not allowed on the CCED list.
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>
> 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/
>
>
> 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/
>


Addresses:
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Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com

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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/