A Tidal Stream Turbine, designed in Solidworks. The basic principles of a tidal stream turbine are that it uses the movement of tides within the ocean to generate electricity.
STL (Stereolithography, filesize: 3.15 MB), SLDPRT (SolidWorks, filesize: 96.7 MB), IGE (IGES, filesize: 68.6 MB)