Re: Cnc Project-- combination router- plasma cutter

Wally K. replys;

A six foot screw is six feet long. the total travel 2 ball nuts can
travel on a 6 foot screw is 6 feet minus the length of 1 ballnut.
You do not travel 10 feet you travel somthing less than 6 feet.

--- In CAD_CAM_EDM_DRO@egroups.com, "Smoke" <Smoke@5...> wrote:
> I've just uploaded a drawing relative to this.
>
> Look for the "Ball screw drive length expansion" file.
>
> Bear in mind that using this procedure will cause the travel of the
table to
> be TWICE the travel of the screw. EX: if the screw pitch is 1/4",
one full
> turn of the screw will cause the table to travel 1/2".
>
> Smoke
>
> -----Original Message-----
> From: salterc@v... <salterc@v...>
> To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
> Date: Monday, November 20, 2000 6:10 AM
> Subject: Re: [CAD_CAM_EDM_DRO] Re: Cnc Project-- combination router-
plasma
> cutter
>
>
> >
> >How would you get 10' of travel out of a 6' screw???
> >
> >
> >
> >
> >
> >
> >"Smoke" <Smoke@5...> on 11/17/2000 10:40:51 PM
> >
> >Please respond to CAD_CAM_EDM_DRO@egroups.com
> >
> >To: <CAD_CAM_EDM_DRO@egroups.com>
> >cc:
> >
> >Subject: Re: [CAD_CAM_EDM_DRO] Re: Cnc Project-- combination
router-
> > plasma cutter
> >
> >
> >What do you call cost effective Doug?
> >
> >I just got a catalog and complete pricing info. directly from
Thomson
> >today.
> >
> >A 1/2 dia ball screw 6' foot long suitable for use on a router
table
> >(unless
> >you need super good precison?) lists for $73.64.
> >
> >I don't know about the rest of you, but I can design a system that
allows
> >the table on a 6 foot long ball screw to move 10 feet. Therefore,
you only
> >need two of these for your router table.
> >
> >Smoke
> >
> >
> >-----Original Message-----
> >From: Doug Harrison <prototype@c...>
> >To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
> >Date: Friday, November 17, 2000 6:26 PM
> >Subject: Re: [CAD_CAM_EDM_DRO] Re: Cnc Project-- combination
router- plasma
> >cutter
> >
> >
> >>
> >> --- In CAD_CAM_EDM_DRO@egroups.com, "Chris Salter" <salterc@v...
wrote:
> >>> Hey group,
> >>> I have been working on my first cnc project, and I suppose
it is
> >>> coming along well.. I have posted some pictures on my Website..
> >>> Have a look and tell me what you think-- good or bad.....
> >>> and if you have any suggestion let me know..
> >>>
> >> > Web address-- http://www.frontiernet.net/~salterc/cnc.htm
> >>
> >>
> >>Looks like good workmanship Chris. Keep us informed on the
success of
> >your
> >>X axis rail system. I just priced out Thompson shafts and linear
bearings
> >>for a 5'X10' router today. We have to find a more cost effective
method.
> >>
> >>I bookmarked your site and look forward to more pictures.
> >>
> >>Doug
> >>
> >>
> >>Welcome to CAD_CAM_EDM_DRO@e...,an unmoderated list for the
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> >>
> >>
> >>
> >
> >
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> >
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> >
> >Welcome to CAD_CAM_EDM_DRO@e...,an unmoderated list for the
> discussion of shop built systems, for CAD, CAM, EDM, and DRO.
> >
> >Addresses:
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