<http://schema.org/description>
"A new method of pattern making brings various advantages, not the least of which is expanded design freedom. But 3D printing of patterns is not without trade-offs."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/blog/post/pros-and-cons-of-making-foundry-patterns-via-3d-printing>