![]() ![]() “Early 3-D printed objects were fragile,” said UP’s Senior System Engineer Royce Connerley. Each layer or slice can be as small as a quarter of the diameter of a piece of hair. Functioning like an inkjet printer, 3-D printers use material – plastic, metal, glass and concrete – to lay down successive layers until a tangible object is created. While NASA is finding ways to use 3-D printing to provide necessities for colonizing Mars, Union Pacific is applying the same technology to make locomotive operations safer and more efficient.ģ-D printing is a relatively mature technology, originally dating back to 1984 however, it wasn’t commercialized until the 2000s.
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