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  <title>Shapeways: Bring your creativity to life in 3D</title>
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  <description>Shapeways: Bring your creativity to life in 3D</description>
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<item rdf:about="http://www.shapeways.com/forum/index.php?t=rview&amp;goto=49991&amp;th=9925#msg_49991">
  <title>Tamfang's abstractions</title>
  <link>http://www.shapeways.com/forum/index.php?t=rview&amp;goto=49991&amp;th=9925#msg_49991</link>
  <description><![CDATA[Since 1981 I've lived near the Pacific coast of North America.<br />
<br />
In 1997 I started using <a href="http&#58;&#47;&#47;povray.org/" target="_blank">PoV-Ray</a> to make mathematical abstractions.<br />
Lately I've been doing <a href="http&#58;&#47;&#47;bendwavy.org/doodle/" target="_blank">my stuff</a> mostly in Python.<br />
<br />
In 2008 or 2009 I saw the Shapeways booth at a Maker Faire.<br />
<br />
Each of my models comes from a Python program that builds a mesh in three formats simultaneously: in <a href="http&#58;&#47;&#47;vpython.org/" target="_blank">Visual Python</a> (so I can move around for a better look), as a .POV file (for a permanent image), and in .OBJ (to send to Shapeways).<br />
<br />
I have ideas for numerous designs based on uniform polychora (4-dimensional polytopes), but I lack the technique to generate the copies (up to 14400!) of a unit cell and tie them together properly.]]></description>
  <dc:subject></dc:subject>
  <dc:creator>Tamfang</dc:creator>
  <dc:date>2012-06-19T06:15:15-00:00</dc:date>
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<item rdf:about="http://www.shapeways.com/forum/index.php?t=rview&amp;goto=50119&amp;th=9925#msg_50119">
  <title>Re: Tamfang's abstractions</title>
  <link>http://www.shapeways.com/forum/index.php?t=rview&amp;goto=50119&amp;th=9925#msg_50119</link>
  <description><![CDATA[Ah, uniform polychora! Perhaps OpenSCAD would be useful? It's programmatic, and I've had some success translating my POV-Ray models into it, making allowances for the printing rules, of course.]]></description>
  <dc:subject></dc:subject>
  <dc:creator>tessman</dc:creator>
  <dc:date>2012-06-20T16:53:59-00:00</dc:date>
</item>

<item rdf:about="http://www.shapeways.com/forum/index.php?t=rview&amp;goto=50140&amp;th=9925#msg_50140">
  <title>Re: Tamfang's abstractions</title>
  <link>http://www.shapeways.com/forum/index.php?t=rview&amp;goto=50140&amp;th=9925#msg_50140</link>
  <description><![CDATA[It's not obvious to me how one modeler would be more useful than another.  Or is there one that can work in four dimensions (or in curved 3-space), whose toolbox includes &quot;repeat with polychoral symmetry&quot;?]]></description>
  <dc:subject></dc:subject>
  <dc:creator>Tamfang</dc:creator>
  <dc:date>2012-06-21T06:21:53-00:00</dc:date>
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