UPDATE 2011-12-13 07:23 Kylie Karshellian adopted a print of this shell today! See it happen here with annotations and music: http://youtu.be/LtvlLBQnEc0 UPDATE 2011-12-07 21:35 Kendall Karshellian adopted a print of this shell today! See it happen here: http://youtu.be/QpCusZ_q0ww UPDATE 2011-12-04 19:11 The original oxystele.stl had spiral holes in it. After running it through http://cloud.netfabb.com the holes are gone. If you downloaded the file before, please re-download it. Another one of M. B. Cortie's greatest hits http://www.sciencedirect.com/science/article/pii/009784939390054D! Modeled on the shell of the Oxystele sinensis sea snail, http://en.wikipedia.org/wiki/Oxystele_sinensis, will Coenobita clypeatus - "Purple Pincher" - hermit crabs like this? Only experimentation will tell! It was created using Maya's shellNode plugin, which is based upon Cortie's model, and thickened using Blender's Solidify modifier http://www.blender.org/development/release-logs/blender-256-beta/solidify-modifier/. The goal is a workflow using open source tools, but this shell surface required a commercial tool. Thanks to a tip from http://www.thingiverse.com/mesheldrake, the conversion to a solid is now handled by an open source tool. :) Cortie's model and many of its resultant shells have been written in Maple http://www.maplesoft.com/applications/view.aspx?SID=3851&view=html. Porting them to an open source tool such as Sage or Blender is the last step in creating a complete open source workflow. Any python ninjas up to the task�¢â�¬�½ Follow Project Shellter progress here: http://projectshellter.com http://twitter.com/ProjectShellter http://bit.ly/ProjectShellter http://bit.ly/ProjectShellterCams http://bit.ly/ProjectShellterVideosSome notes: