The stl model is derived from serial CT data of a fossil mammal-like reptile. For the last 30 years I have developed 3D computer and physical models for education and research. The makerbot makes this now possible on a very wide scale by the distribution of the stl files derived from volume (voxel) data and serial digitised contours. I have modelled human and animal brains, fish head anatomy, turtles, fossil birds, teeth etc. Using a makerbot would make this technology accessible. makezine.com/go/makerbotThe example was chosen to show how the system works. It involves going from voxel data files to surface triangles, available in amy free 3D imaging packages (such as 3Dview). Stl files produced will need fixing and stl repair programs are widely available. It is within the capacity of anyone with a makerbot to make anything