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<H1>advice re modifications to a umax scanner</H1>
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<STRONG>From:</STRONG> Richard Beare (<A HREF="mailto:Richard.Beare@cmis.CSIRO.AU?Subject=Re:%20advice%20re%20modifications%20to%20a%20umax%20scanner&In-Reply-To=&lt;3A80D9A0.9224CB5@cmis.csiro.au&gt;"><EM>Richard.Beare@cmis.CSIRO.AU</EM></A>)<BR>
<STRONG>Date:</STRONG> Tue Feb 06 2001 - 21:14:08 PST
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Hi everyone
<BR>
<P>I'm planning on building a machine that uses parts from a umax powerlook
<BR>
III. The idea is to use the scan head and control board and throw away
<BR>
the rest so that we can have a device with a moving table and a
<BR>
stationary scan head. The xy-table is going to be driven by a motion
<BR>
controller that is capable of considerably higer accuracy than the
<BR>
typical scanner internals. My plan is to have the motion controller
<BR>
reading the signals that usually drive the stepper motor and sending
<BR>
appropriate signals to the table to duplicate the expected motion. It
<BR>
will also be necessary to take over the end position sensor. I'm just
<BR>
starting to go through the code now with the aim of figuring out how
<BR>
much of the calibration and homing is controlled by the PC and how much
<BR>
is controlled by the embedded firmware.
<BR>
<P>I'd appreciate any advice that people can offer on this kind of thing.
<BR>
<P>Thanks
<BR>
<P><PRE>
--
Richard Beare, CSIRO Mathematical &amp; Information Sciences
Locked Bag 17, North Ryde, NSW 1670, Australia
Phone: +61-2-93253221 (GMT+~10hrs) Fax: +61-2-93253200
<P><A HREF="mailto:Richard.Beare@cmis.csiro.au?Subject=Re:%20advice%20re%20modifications%20to%20a%20umax%20scanner&In-Reply-To=&lt;3A80D9A0.9224CB5@cmis.csiro.au&gt;">Richard.Beare@cmis.csiro.au</A>
<P>--
Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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