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<TITLE>sane-devel: advice re modifications to a umax scanner</TITLE>
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<META NAME="Author" CONTENT="Richard Beare (Richard.Beare@cmis.CSIRO.AU)">
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<META NAME="Subject" CONTENT="advice re modifications to a umax scanner">
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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=<3A80D9A0.9224CB5@cmis.csiro.au>"><EM>Richard.Beare@cmis.CSIRO.AU</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Feb 06 2001 - 21:14:08 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0055.html">Kees Lemmens: "Re: choice of scanner"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0053.html">John Craig: "Re: Setting up HP ScanJet 5P on Solaris 8 SPARC"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0066.html">Oliver Rauch: "Re: advice re modifications to a umax scanner"</A>
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Hi everyone
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<BR>
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<P>I'm planning on building a machine that uses parts from a umax powerlook
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<BR>
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III. The idea is to use the scan head and control board and throw away
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<BR>
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the rest so that we can have a device with a moving table and a
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<BR>
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stationary scan head. The xy-table is going to be driven by a motion
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<BR>
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controller that is capable of considerably higer accuracy than the
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<BR>
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typical scanner internals. My plan is to have the motion controller
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<BR>
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reading the signals that usually drive the stepper motor and sending
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<BR>
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appropriate signals to the table to duplicate the expected motion. It
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<BR>
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will also be necessary to take over the end position sensor. I'm just
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<BR>
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starting to go through the code now with the aim of figuring out how
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<BR>
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much of the calibration and homing is controlled by the PC and how much
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<BR>
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is controlled by the embedded firmware.
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<BR>
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<P>I'd appreciate any advice that people can offer on this kind of thing.
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<BR>
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<P>Thanks
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<BR>
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<P><PRE>
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--
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Richard Beare, CSIRO Mathematical & Information Sciences
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Locked Bag 17, North Ryde, NSW 1670, Australia
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Phone: +61-2-93253221 (GMT+~10hrs) Fax: +61-2-93253200
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<P><A HREF="mailto:Richard.Beare@cmis.csiro.au?Subject=Re:%20advice%20re%20modifications%20to%20a%20umax%20scanner&In-Reply-To=<3A80D9A0.9224CB5@cmis.csiro.au>">Richard.Beare@cmis.csiro.au</A>
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<P>--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20advice%20re%20modifications%20to%20a%20umax%20scanner&In-Reply-To=<3A80D9A0.9224CB5@cmis.csiro.au>">majordomo@mostang.com</A>
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</PRE>
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<!-- next="start" -->
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<LI><STRONG>Next message:</STRONG> <A HREF="0055.html">Kees Lemmens: "Re: choice of scanner"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0053.html">John Craig: "Re: Setting up HP ScanJet 5P on Solaris 8 SPARC"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0066.html">Oliver Rauch: "Re: advice re modifications to a umax scanner"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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