Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko

There was an article in Nuts and Volts a few years back about the
electronics to do this...

Garry

To: CAD_CAM_EDM_DRO@yahoogroups.com
From: Larry Van Duyn <lvanduyn@...>
Date sent: Wed, 18 Jul 2001 08:09:01 -0700
Send reply to: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko

>
>
> thscarince@... wrote:
>
> > Along similar lines, how about using a stepper simply as an encoder?
> >
> > While I wouldn't depend on one for servo feedback, that small useless
> > ex-disk-drive stepper might make a very nice handwheel encoder for
> > manual jogging. Just like the bigtime commercial machines have. The
> > neat part is you get a built in "detent" feel from the stepper!
> >
> >
>
> My Allen Bradley does just that. It has a stepper mounted on the
> panel for handwheel control. It has a bit of circuitry added which
> generates the normal quadrature outputs which are fed into the
> control computer, and as you say, the detent never wears out..
> Larry..
>
>
> 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@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this page: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Manager
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>