Hey there, I am actually an Applications Engineer for Creaform, but I myself am based in Houston. We are the leading technology in the 3D scanner world. Obviously as a hobbiest you don't want to spend an arm and leg on a scanner, but we actually sell an academic level scanner for I think around $10k that is very good called the Peel 3D. Like others have mentioned it's a point cloud mesh .STL you are generating. With this you need additional software to reverse engineering and truly dimension the model accurately from the .STL into something usable and 3D printable. Our software has this capability to be able to develope a solid model from the mesh without having to deal with other 3rd party softwares.