Look very closely at the reconstruction of the skull of newly discovered hominin ancestor Homo naledi. Can you tell that it's been 3D printed? According to John Hawks, a palaeoanthropologist on the ...

STL files are everywhere. When there’s something to 3D print, it’s probably going to be an STL. Which, as long as the model is good just as it is, is no trouble at all. But sooner or later there will ...