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Three-time Guinness World Records winner UMaine, 3D-printed Boat 3Dirigo

By UMaine

Industry: Shipping Technology: Fused Filament Fabrication Material: Plastic and wood cellulose Machine: MasterPrint 3x

Three-time Guinness World Records winner UMaine, 3D-printed Boat 3Dirigo

Sail into the future with the world’s largest 3D-printed boat, showcasing groundbreaking technology on the high seas.



The construction of the largest printed boat underscores the pivotal role of additive manufacturing in revolutionizing the maritime industry, ushering in a new epoch of enhanced efficiency and expansive design potentialities. The University of Maine (UMaine) proudly holds three Guinness World Records for the world’s largest prototype polymer 3D printer, the largest solid 3D-printed object, and the largest 3D-printed boat. Consequently, the 25-foot-long Navy patrol vessel 3Dirigo was conceptualized and fabricated utilizing a large-format polymer 3D printer developed by the UMaine Advanced Structures and Composites Center. Furthermore, the UMaine 3D printer boasts the capability to fabricate objects measuring up to 100 feet in length, 22 feet in width, and 10 feet in height, achieving a printing velocity of 500 pounds per hour. This unparalleled printer is earmarked to bolster various ambitious initiatives, including the advancement of bio-based feedstock production leveraging cellulose extracted from timber resources, as well as the rapid prototyping of applications spanning civilian, defense, and infrastructural domains. UMaine showcased the capabilities of their large-scale MasterPrint 3x by fabricating the 3D printed vessel 3Dirigo. Crafted within a mere 72-hour timeframe, the boat was materialized utilizing a blend of plastic and wood cellulose. With dimensions measuring 7.62 meters in length and a weight of 2.2 tons, it stands as the largest solid structure ever to be 3D printed. The term "Dirigo," derived from the Latin language and serving as the motto of the state of Maine, translates to "I Lead." The world’s largest 25-foot, 5,000-pound 3D-printed vessel, christened 3Dirigo, underwent rigorous testing within the Alfond W2 Ocean Engineering Laboratory. Equipped with a high-performance wind generator situated atop a multidirectional wave basin, this offshore model testing facility facilitated comprehensive evaluations.



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