NASA's Reactive Additive Manufacturing for the Fourth Industrial Revolution (RAMFIRE) project test-fired a 3D-printed engine nozzle at Marshall Space Flight Center in Alabama. See the test in real ...

A research paper investigated the possibility of identifying the specific 3D printer that was used to produce a given part.

Yu led the development of the printable concrete ink, calibrating variables for the 3D printer like water-to-binder ratios, nozzle size, and extrusion speed. “We ran a lot of trials,” he says.

Test results showed that the material continuously absorbed CO2 over a 400-day period.

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Yu led the development of the printable concrete ink, calibrating variables for the 3D printer like water-to-binder ratios, nozzle size, and extrusion speed. "We ran a lot of trials," he says.