Pushing the limits of additive-manufacturing processes, 3D-printing startup Branch Technology recently completed installation of a bandshell in Nashville, Tenn., that it says is the largest 3D-printed structure in the world.
A construction tech company that printed the walls of a 350-sq-ft “tiny house” in 48 hours in Austin, Texas, in March is now partnered with a nonprofit that aims to start printing walls for 800-sq-ft homes in El Salvador—in 24 hours for each—by the end of the year.
A standard, industrial robotic arm has “printed” about a third of a 12-meter pedestrian bridge that is destined to span an old Amsterdam canal in the Netherlands as early as next year.
When Caterpillar began its current investment in 3D-printing components for heavy equipment earlier this decade, the company’s engineers and chemists tried to manage their expectations.
The nascent 3D-printing industry is working toward the goal of printing large-scale structures with specially designed feed material, but researchers working at a smaller scale are currently exploring techniques for printing a wide range of materials in complex shapes.
A three-day conference providing demonstrations, presentations and networking by firms inventing, piloting and implementing technologies to address construction’s future left attendees bullish on tech prospects for the construction industry and heading home with ideas to deploy.