Ok! So where does the CEREC .STL file go?? It has to go into a program that will at least add a base to the scan. This is necessary for printing. If you scan in CEREC Ortho, you have the option of making a base at the end. You can do this, or place it into a free 3D program called, MeshMixer. August gives some tips with MeshMixer and how to hollow out the model! This will keep you from using quite so much resin per model.