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<DIV><FONT face=Arial size=2>I have two words for you: Stereo
Lithography.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Uses a laser to set a thin layer of polymer, and
many thin layers comprise the entire unit. Very quick, and not all that
expensive if you are only going to make one or two units.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>No tooling required.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Rob</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=dh@synthstuff.com href="mailto:dh@synthstuff.com">David Halliday</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=jdarby@lplizard.com
href="mailto:jdarby@lplizard.com">'Jon Darby'</A> ; <A
title=synth-diy@node12b53.a2000.nl
href="mailto:synth-diy@node12b53.a2000.nl">synth-diy@node12b53.a2000.nl</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, March 26, 2001 1:48
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [sdiy] Plastic case
fabrication</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=030164318-26032001><FONT face="Comic Sans MS" color=#0000ff>I
looked into this once. The problem is that these are made by injecting
plastic into a metal mold under fairly high pressure and temperature ( couple
hundred degrees and PSI )</FONT></SPAN></DIV>
<DIV><SPAN class=030164318-26032001><FONT face="Comic Sans MS"
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=030164318-26032001><FONT face="Comic Sans MS"
color=#0000ff>The mold has to be strong enough to resist this. It also
has to be made so that it can fit into the molding machine. To get this,
you need to spend several thousand dollars on up depending on the complexity
of your design. </FONT></SPAN><SPAN class=030164318-26032001><FONT
face="Comic Sans MS" color=#0000ff>Classic case of the first one costing
$10,000 and each successive one costing $0.30 each.</FONT></SPAN></DIV>
<DIV><SPAN class=030164318-26032001><FONT face="Comic Sans MS"
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=030164318-26032001><FONT face="Comic Sans MS"
color=#0000ff>You might want to search the web for various plastic companies -
see if there might be an off-the-shelf extrusion or blow molded
piece that can be used. Or change what you are designing to fit
something off the shelf.</FONT></SPAN></DIV>
<DIV><SPAN class=030164318-26032001><FONT face="Comic Sans MS"
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=030164318-26032001><FONT face="Comic Sans MS"
color=#0000ff></FONT></SPAN> </DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
owner-synth-diy@node12b53.a2000.nl
[mailto:owner-synth-diy@node12b53.a2000.nl]<B>On Behalf Of </B>Jon
Darby<BR><B>Sent:</B> Monday, March 26, 2001 10:25 AM<BR><B>To:</B>
synth-diy@node12b53.a2000.nl<BR><B>Subject:</B> [sdiy] Plastic case
fabrication<BR><BR></FONT></DIV>
<DIV><FONT size=2></FONT>
<DIV><FONT color=#000000 size=2>Good afternoon, everyone (please adjust
greeting to your time zone),</FONT></DIV>
<DIV><FONT color=#000000 size=2> How would one go about
commisioning someone to fabricate a number of plastic bowl-shaped cases, or
really any shape someone would want? For example, the case a cell phone sits
in, someone designed that and another guy is making them as we speak. Who
are these people and how do I contact them for a simple, simple half-sphere
much simpler than even the simplest of cell phone cases, and the only thing
I would ask would be flanges to drill screws into. I'm trying to avoid
cutting hundreds of little plastic balls you find at the Chuck E. Cheese
Ball Crawl in half and epoxying the guts into the bottom. Is this type of
work tremendously expensive to have done? </FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT><FONT size=2>Thank you for the
advice,</FONT></DIV>
<DIV><FONT size=2>Jon Darby</FONT></DIV></DIV>
<DIV><FONT size=2> </FONT></DIV>
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