Re: [CAD_CAM_EDM_DRO] cnc mill project

Interesting thought. I have only considered servos from the very begging of
the project. For one, I think I was just under the impression that servos
were better in general terms. I also might be biased by Taig's
premanufactured CNC mill, which uses an open-loop stepper system and
performs very poorly (so I hear).

----- Original Message -----
From: "Nick Ibbitson" <pulseweld@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, May 13, 2004 11:16 AM
Subject: Re: [CAD_CAM_EDM_DRO] cnc mill project


> Just a thought but I would have thought steppers would be cheaper to use
on
> something as small as a Taig Micromill, they are certainly powerful enough
> and cnc control software and suitable interfaces are readily available on
> both sides of "The Pond".
>
> Nick
>
> ----- Original Message -----
> From: "John D. Bussema" <bussema@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Wednesday, May 12, 2004 11:33 PM
> Subject: [CAD_CAM_EDM_DRO] cnc mill project
>
>
> > First, thanks for the info regarding Gecko drives, I found it very
useful.
> My friend and I are industrial engineers at U of I and are converting a
> manual Taig micromill to CNC as part of an independent study in adaptive
> control systems. We currently in the very beginning stages of the project
> and are trying to figure out what components to purchase for the initial
> conversion. I have a pretty broad background in machine tool systems, in
> addition to being a metalsmith, but I don't know all that much about CNC
> interfacing. We'd like the machine to be both accurate and cheap. We've
> decided to use the Gecko drivers for the project, as I've seen them on
> numerous websites and all have spoken very highly about them. I was
> wondering if anyone has suggestions for the type of servos we should use,
> particularly: typical ranges for continuous torque, speed, voltage, and
> encoder resolution (we plan on using rotary encoders). We're also
interested
> on upper bounds of the same parameters (i.e
> > . the maximum values that are worth paying for). If anyone knows of a
> cheap surplus servo supplier we'd be interested in that too Thanks a lot.
> >
> > -John
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
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[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
>
>
> Yahoo! Groups Links
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>