if you want it back lit - it needs to be clear - only the top (and sides) should be black.<br>that's how the real deal is made.<br><br>Ido<br><br><div><span class="gmail_quote">On 11/16/06, <b class="gmail_sendername">Roy Coates
</b> <<a href="mailto:roy@flightlab.liv.ac.uk">roy@flightlab.liv.ac.uk</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Thu, 16 Nov 2006, Ido Dekkers wrote:<br><br>> well if you want to make them like the real ones -<br>> you need a CNC machine to cut the Plexiglas, then paint it white a few<br>> coats, then black,<br>> then if you have access to a laser engraver, laser the lettering, or the
<br>> hard way is to CNC them.<br>><br>> then you need to get a PCB, solder some LED's on it and there you have it :<br><br>I've access to some pretty tasty CNC gear and I would think that our laser<br>group would be able to handle laser engraving for me.
<br><br>There used to be a system which used a sandwich of black and white<br>plastic, you could engrave through either to yield lettering of the<br>opposite colour. We used loads to label home-brewed equipment but the<br>
fools dumped the engraver when it failed current code requirements.<br><br>I wonder if that stuff could be laser engraved .. ? Hmmm...<br><br><br>--<br><br>Roy Coates.<br>Dept of Engineering.<br>Liverpool University.<br>
E-Mail: <a href="mailto:r.coates@liv.ac.uk">r.coates@liv.ac.uk</a><br>Tel: 0151 794 4862<br>-------------------------------------------------------------------------------<br>Lord, If I must have an instrument failure, please let it be the Hobbs meter.
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