Ford's 3D printing is changing the way engineers develop and test cars. "Now the process of creating prototype parts is faster, more flexible and more affordable than ever — and the results are on the road," says the official website. The technique creates new parts layer by layer, stacking up cross sections like a deck of playing cards. With the 3D printing machines running nearly 24-7, the method has become a kind of virtual sandbox for engineers to design new types of parts never before thought possible. Full speed ahead. PlasticFinder is following Ford's rapid manufacturing processes.