This 3D model form at 3dm.
You can easily make the STL/OBJ file and prepare for printing.
Native Formats: 3DM (Rhinoceros 3D, filesize: 19 MB)
Exchange Formats: OBJ (OBJ, filesize: 12.8 MB), FBX (Autodesk FBX, filesize: 9.21 MB), STL (Stereolithography, filesize: 21.7 MB), 3DS (3D Studio, filesize: 5.27 MB)