الوضع الليلي
8:14:21 
2021-12-17 
950
In October 2019, the University of Maine’s Advanced Structures and Composites Center, in Orono, unveiled the world’s largest 3D printer — a $2.5 million exquisitely calibrated machine that can turn out objects as large as a boat in a matter of days.
Manufactured by Ingersoll Machine Tools in Rockford, Ill., the printer is capable of running along a 100-foot bed and extruding printer filament at a rate of 500 pounds per hour. Tolerances are within 6,000th of an inch.
The university’s acquisition of the printer was an outgrowth of the composite center’s research, conducted the past 15 years, in combining cellulosic nano and micro fibers with thermoplastic materials, said Habib Dagher, the center’s founding executive director. It signals the latest step in an additive manufacturing collaboration, funded by the Department of Energy’s Advanced Manufacturing Office, between the composites center and the Department of Energy’s Oak Ridge National Laboratory.
The initiative is designed to expand the potential of the 3D printing market and create a new market for Maine’s forest products industry.
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