Re: Re: Cheap Encoders

Yes it has been done before. Steve Stallings had a good idea using a wire
set up like a radio dial connected to a encoder. The mechanical part worked
fine but there were problems finds a pc lpt card that would work well. The
linear encoders are much simpler and more positve.
Dan
-----Original Message-----
From: Alan Rothenbush <beer@...>
To: CAD_CAM_EDM_DRO@onelist.com <CAD_CAM_EDM_DRO@onelist.com>
Date: Thursday, July 15, 1999 10:44 AM
Subject: [CAD_CAM_EDM_DRO] Re: Cheap Encoders

>From: Alan Rothenbush <beer@...>
>
>Does anyone have any thoughts about using these low cost rotary encoders
>from Goldmine attached to the TABLE ( or quill ) instead of the SCREWS.
>
>Maybe by some sort of belt or wire driving a pulley with a spring to
>keep it all under tension ?
>
>By attaching it to the table, any lash in the driving mechanism would then
>be accounted for automatically, similar to using linear encoders.
>
>Alan
>
>--
>
>Alan Rothenbush | The Spartans do not ask the number of the
>Academic Computing Services | enemy, only where they are.
>Simon Fraser University |
>Burnaby, B.C., Canada | Agix of Sparta
>
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