AI-driven robots turn plastic bottles into homes and bridges using waterless 3D printing

Researchers from MIT’s Department of Mechanical Engineering developed Atlas, an AI-powered robotic platform that recycles single-use plastic without water and extrudes a fiberglass-reinforced composite via large-scale 3D printing. The process shreds bottles, melts the plastic, blends it with American-made fiberglass, and prints components such as foundations, decks, wall and roof trusses, and even bridge sections. Current factory cells can produce framing for about one small home per day, with demonstrated parts supporting over 4,000 pounds and output rates of 150-200 pounds per hour.

Co-founders A.J. Perez and former Maine senator Matt Pouliot plan to deploy thousands of Atlas Factory Stacks globally, creating local recycling and construction jobs while reducing reliance on timber, concrete and mining. An Army Corps of Engineers bridge built with the system was installed in less than a day, showcasing rapid deployment. The venture seeks to convert billions of plastic bottles into durable housing, targeting one billion homes over 30 years.