Check out these guys: <a href="http:&#x2F;&#x2F;ntopology.com&#x2F;index.html&#x2F;" rel="nofollow">http:&#x2F;&#x2F;ntopology.com&#x2F;index.html&#x2F;</a><p>They make some awesome software that let&#x27;s you create wither flat or volumetric lattice structures  from existing 3D models.