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[NASA] NASA-Supported Space Tech Advances Earthly Construction

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Preparations for Next Moonwalk Simulations Underway (and Underwater)

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Branch’s work outfitting a prototype of a lunar surface habitat they developed, pictured here, under a cooperative agreement with Marshall Space Flight Center, helped the company evolve its printing processes.
Credit: Branch Technology Inc.

An innovative 3D printing process that advanced NASA’s approach to outfitting a lunar habitat is making buildings on Earth beautiful, efficient, and strong. 

Instead of building structures layer by layer, Branch Technology Inc. of Chattanooga, Tennessee, has developed a process the company calls Freeform 3D Printing, which creates shapes with lightweight lattice structures that can be filled or covered. The company uses the technique to manufacture visually interesting, modular building elements, such as wall panels and cladding. 

“Our process eliminates a ton of material from something that otherwise might be printed solid all the way through,” said David Goodloe, who leads Branch Technology’s Advanced Concepts team, which manages the company’s NASA collaborations. 

In 2017, the company won Phase II of NASA’s 

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, a public competition to build a habitat for deep space exploration. 

Tracie Prater, a technical manager in the Habitat Systems Development Branch at NASA’s Marshall Spaceflight Center in Huntsville, Alabama, served as a subject matter expert for the challenge and worked with Branch Technology on a cooperative agreement. 

“With the 3D-Printed Habitat Challenge, teams were focused on how to build a large habitat structure on a planetary surface,” said Prater. “But once that structure is pressurized and ready for crew occupancy, how do you populate it with systems and supplies? That’s what Branch was looking at through the cooperative agreement — what their on-demand fabrication process enables in terms of novel designs for interior items.” 

NASA’s parameters for the habitat challenge led Branch to develop its nozzles to extrude unique lattice structures as well as more traditional layers. The company uses this dual capability frequently in its wall panels where traditionally printed sections offer solid substrates for attaching fasteners. 

The polymers Branch extrudes were informed by its materials science research for the 3D-Printed Habitat Challenge, which asked that print material be made of something like the dust and rocks found on the Martian surface and mission recyclables. Branch came up with a basalt fiber-reinforced plastic and from that work went on to develop an optimal loading recipe for its terrestrial “inks.” 

These innovations exemplify the purpose of 

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 program within the Space Technology Mission Directorate, which uses space-based solutions to improve life on Earth. For 50 years, NASA has documented the everyday benefits of space technology through the agency’s Spinoff publication.  

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Last Updated
May 13, 2026

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