This is an improved shape model of Comet 67P C-G which was visited in 2014 by ESA's Rosetta mission. I took the obj file from Mattias Malmer and it gave me more detail than other public models I had from ESA. Also, this one has the correct orientation (I believe). The dark site of the comet has less detail, maybe this this change in the near future when we get more data.
Take the obj file from Mattias, and get it through blender to export the stl file. The PP3DP printer was directly able to print it after some scaling.