CNC flame/plasma cutter (was Stepster)

You may want to check out http://www.torchmate.com I have a friend that is
just finishing up one of these units and so far he likes what he sees. He
built the large unit that can handle a 4' x 8' plate. It uses a rack and
pinion and is driven by 125 in/oz NEMA 23 motors that I had purchased from
Dan at Camtronics and used for a little bit on my Sherline.

The construction is 2" sq steel tubing for support with 1" sq solid cold
rolled steel as the rails. It then uses cam follower bearings. Pretty slick
design.


Tim
[Denver, CO]

> -----Original Message-----
> From: smcdonal [mailto:smcdonal@...]
> Sent: Thursday, June 24, 1999 12:44 AM
> To: CAD_CAM_EDM_DRO@onelist.com
> Cc: DRigotti@...
> Subject: Re: [CAD_CAM_EDM_DRO] Stepster
>
>
> From: smcdonal <smcdonal@...>
>
> DRigotti@... wrote:
> SNIP
> I want to make my own x y cutting torch. I was thinkning of using 2" sq
> tubing for the frame and haveing the rails guided by roller barings. I
> would like to know what size of motor you think would be needed to move
> the gantery style frame. I was thinking along the lines of a 4x8 style
> or min. 24x 48". If needed I can go to something lighter. Where is a
> good place to get these motors at a good price that are compatable with
> your kit? Is a person better off using regular screw threads/ ball
> screws or a rack an pinion setup since there is not much load on the
> machine, unlike a mill or lathe.
>
> Any custruction notes or idea feel free to drop me a note.
>
> Thanks for your help
> Stan
>
> --------------------------- ONElist Sponsor ----------------------------
>
> Who is the most visited e-mail list community Web Service?
> http://www.onelist.com
> ONElist.com - where more than 20 million e-mails are exchanged each day!
>
> ------------------------------------------------------------------------
> welcome to CAD_CAM_EDM_DRO@..., an unmodulated list for
> the discussion of shop built systems in the above catagories.
> To Unsubscribe:
> http://www.onelist.com/unsubscribe/CAD_CAM_EDM_DRO
> bill, List Manager
>