When it comes to 3D printing, we all know that there can be weakness within printed object along the layered lines. This is usually ok when printing out a vase, or a smartphone case, but it could be the difference of life and death for companies like Boeing and Lotus. The two companies with a technology that Boeing has filed a patent for have begun to print objects that don't have these traditional weaknesses in layers. The process is quite involved, but so far it is proven to greatly increase the strength of their prints. Read more about this at: http://3dprint.com/9283/boeing-lotus-3d-printing/