After reading all comments so far and thinking of the concerns mentioned, printing humans onto another world for colonising purposes is really not a fearful thing to do. I will illustrate the simplicity of it by starting with artificial insemination and sperm donation. There is a sperm pool out of which we draw readymade zoids to fecund with an egg in an ovary, when we determine there is a need to do so. In the end, it all boils down to this bare fact.
Now, many if-s follow.. and we reach a point where if we have a world and if we want to colonise it and it is very close - less than 10ly away - then if we today happen to chose the moment when to 'start' the building of an embryo using readymade zoids and ovaries, can't this moment well enough be when the colony-ship lands on that world? .. the TimeSpan will kill the zoids and ovaries.... but then they are carriers of DNA. So basically, we don't need the ovaries and and the zoids, just a machine/biomachine to know how to imitate an ovary and another machine/biomachine to imitate the zoid. The embryo will contain the supplied DNA fed into the biomachines. Now, the database of the persons of these DNA samples would be no different than the databases of the existing sperm banks mentioned earlier.
If we would ever be capable of doing all this sci-fi, we would also be capable to build in advance a home, why, a village, waiting for the coming ocupants.
Otherwise, it is all well and good too. We just stay home.