CAD CAM EDM DRO - Yahoo Group Archive

Re: Worry, servo back powering Gecko

on 2001-07-18 10:57:46 UTC
Hi Tom, List,

Nice idea! A little big, but it could work. Panel shaft encoders are
also cheap, and work quite nice. Easy task to read them in through two
bits (digital) of a joystick port, and use the other two bits for "bump
switches" (a value in a parameter is "bumped" each time the button is
pressed, and rolls over). Put them all in a small die cast box, and you
have a convenient pendent.

Alan KM6VV

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!
>
> BTW, the commercially available (and very expen$ive) handwheel
> encoders often use what they call a "magnetic detent" instead of a
> mechanical one that will eventually wear out.
>
> Just a thought (came to me in a dream),
> Tom Scarince
>
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Discussion Thread

Roger Swift 2001-07-16 14:23:16 UTC Worry, servo back powering Gecko mariss92705@y... 2001-07-16 14:37:52 UTC Re: Worry, servo back powering Gecko Jon Elson 2001-07-16 21:49:00 UTC Re: [CAD_CAM_EDM_DRO] Worry, servo back powering Gecko Alan Marconett KM6VV 2001-07-17 12:10:37 UTC Re: [CAD_CAM_EDM_DRO] Worry, servo back powering Gecko mariss92705@y... 2001-07-17 12:35:46 UTC Re: Worry, servo back powering Gecko Ron Yost 2001-07-17 13:28:01 UTC Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko mariss92705@y... 2001-07-17 13:36:53 UTC Re: Worry, servo back powering Gecko Alan Marconett KM6VV 2001-07-17 14:02:18 UTC Re: Worry, servo back powering Gecko Alan Marconett KM6VV 2001-07-17 14:26:44 UTC Re: Worry, servo back powering Gecko mariss92705@y... 2001-07-17 14:50:05 UTC Re: Worry, servo back powering Gecko Alan Marconett KM6VV 2001-07-17 15:46:34 UTC Re: Worry, servo back powering Gecko Jon Elson 2001-07-17 22:24:19 UTC Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko thscarince@h... 2001-07-18 06:07:45 UTC Re: Worry, servo back powering Gecko Larry Van Duyn 2001-07-18 07:04:14 UTC Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko Alan Marconett KM6VV 2001-07-18 10:57:46 UTC Re: Worry, servo back powering Gecko Ian Wright 2001-07-18 15:56:05 UTC Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko Tom Eldredge 2001-07-19 04:18:48 UTC Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko Garry & Maxine Foster 2001-07-20 17:26:12 UTC Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko Ian Wright 2001-07-21 01:57:46 UTC Re: [CAD_CAM_EDM_DRO] Re: Worry, servo back powering Gecko