3D Printing a NASA Space Wrench - Video

At one point, I worked with an engineer who said he had previously worked on the Apollo Program. One thing he said (that has stuck in my memory all these years), was that, as a last resort, the astronauts were provided a little wrench with which to open the capsule door after splash-down. The ''point'' of all this is that, in future, long-range, space flights, astronauts may well have the option to ''print-out'' their tools, if, and as, needed... . . .