Made in Space already has beams printed in 3D in 2017, when it used a NASA location that simulated some of the conditions of space. This, of course, is another challenge altogether: it is introducing microgravity along with the lack of human support if things go wrong.
This is the beginning of a second phase of an association between the two companies. If successful, it could alter the way NASA and others approach the construction and repair of spacecraft. This could lead to the construction of spacecraft (although smaller at this stage) in orbit, of course, but it could also allow space agencies to launch small satellites that receive large collectors of energy once they are floating on Earth. It could also generate fewer spacewalks by having robots build elements that would otherwise require human participation. Star Trek– Like the orbital shipyards are still far away, but this demonstration is a step in the right direction.