On September 19–22, 2019, in a period of 72 hours, the University of Maine Advanced Structures and Composites Center produced a complete, seaworthy boat in a single pass with the world’s largest 3D printer (additive manufacturing machine), developed by Ingersoll Machine Tools. Here is a time lapse video of the entire construction process.
The completed boat is 7.62 metres long and has a mass of 2.2 tonnes. The construction was certified on October 10th for three Guinness World Records: world’s largest prototype polymer 3D printer, largest solid 3D-printed object, and largest 3D-printed boat.
The printer, which resembles a travelling bridge crane, can fabricate objects as large as 30 metres long, 6.7 metres wide, and 3 metres high, and deposits up to 225 kg of polymer material per hour.
Here is a “Where Nerdy Is Cool!” video about the printer and the construction of the boat.