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NIST's Additive Manufacturing Metrology Testbed (or the AMMT, shown here) was designed to research laser-based metal 3D printing processes, which can be useful for developing pieces used in the aerospace, automotive, biomedical and electronics industries. Using additive manufacturing, or 3D printing, manufacturers can design and produce a metal part for an airplane. But before that part can go into an aircraft and lift passengers into the air, they need to know that it will be durable and withst