Printing the Space Future Testing

Made in Space, Inc. will fly 3D printers on parabolic and sub-orbital research flights to further develop the application of 3D printing technology to micro- and zero-gravity environments. The 3D printing method used on these flights will be Fused Deposition Modeling (FDM), a technique that has already undergone limited testing in microgravity conditions, in which a feedstock is melted and extruded in a predefined pattern. These test flights and subsequent evaluation of the constructed materials will enhance the TRL level of in-situ space manufacturing via 3D printing techniques.

ISS experiment page
Additive Manufacturing For Space overview

SBIR Phase I (2012)
SBIR Phase II (2013)
STTR Phase I (2014)
SBIR Phase I (2014)

Increased independence from Earth is a necessity for space missions to Mars and beyond, and 3D printing is a valuable cost-saving, time-saving, and safety-enhancing convenience even for missions much nearer to home. In-space 3D printing technology is being used in NASA-funded missions on the International Space Station.

This is a mature technology (TRL 9) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

None of these are guaranteed paths for this specific project — TechPort itself doesn't have an "apply" button. Reaching out to the contact(s) above with a specific question is usually the fastest way to find out what's actually open.