It sounds almost exactly like the premise of this animation, Exception at Netflix except the fact that they 3D printed themselves biologically. The clones are fully aware that they are clone of the original with the aim of terraforming a planet before the arrival of their originals hundreds of years later.

YouTube recapped version here for those who want the short version of the series. Bit of sci-fi. horror, mystery, romance cg animation. 8 episodes. 6.5/10 by IMDB.