Re: Cheap Encoders

to:CAD_CAM_EDM_DRO@onelist.com

I've proposed the concept of taking an old
trav-a-dial and using it to directly drive a rotary encoder. Kind of a
new tech approach to the old way of doing things. It should work just
fine, and give you the same accuracy the trav-a-dial had, with a better
view of position. To my knowledge nobody has yet built such a beast,
however.

Brad Heuver
Mechanical Sub-Systems fax 734-523-6052
734-52-33480 bheuver@...
*** Forwarding note from N1914705--IBMMAIL 07/15/99 13:44 ***
=========================================================================
From: Alan Rothenbush <beer@...>
To: CAD_CAM_EDM_DRO@onelist.com
Date: Thu, 15 Jul 1999 10:44:00 -0700 (PDT)
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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