News 3D printing in space passes industry testing milestone for fabrication of spacecraft and associated equipment — promising future for zero gravity...

We can print objects at home using the best budget 3D printers and it's amazing how far we've come yet you'll still be hard pressed to find examples of 3D printing in space.
There has been 3D printing on the ISS for over a decade. And not jsut FDM, but all the way to metal SLM.

3D prints for space use are also now commonplace, from the metallic SLM prints used in rocket engines (e.g. Rocket Lab's Rutherford) to polymer parts used on satellites (PEEK is extremely common).

What Horizon have qualified here is not the prints themselves. What they have qualified is their coating that can be applied to printed parts (or injection moulded parts, or vacuum formed parts, etc).
 

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