Re: [CAD_CAM_EDM_DRO] Re: Cnc Project-- combination router- plasma cutter

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@... <salterc@...>
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@...> 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@...>
>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
>>
>>
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>
>
>Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
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>Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the

discussion of shop built systems, for CAD, CAM, EDM, and DRO.

>
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