In the future, spaceships may be ‘printed’

From Pacific Standard: "Way into the future (the National Research Council says) it's 'feasible' that entire 'fully functional small spacecraft' could be fabricated using 3-D printing arrays up in space where they would actually be used. … Three-dimensional printing could reduce the costly expense of launching spare or replacement parts into space. That's because the parts could be made right there in space using shipments or payloads of raw ingredients. NASA and the Air Force are already formally evaluating the potential to 3-D print small satellites in space."