Divergent Technologies, the company best known for 3D-printing parts for everything from Bugatti supercars to Tomahawk missiles, is opening a massive factory in Long Beach, Calif., equipped with a new kind of industrial metal printer capable of producing more than 30,000 missile airframes a year. The newly-unveiled Monolith One 3D printers are explicitly designed for high-volume, quick production of large parts. Situated in a new 430,000-square-foot factory, which can fit 64 Monolith Ones, this