Geometry parametrization is often the first step for design exploration. Simcenter STAR-CCM+ 3D-CAD has a come a long way over the last few years, with hundreds of new features implemented. 3D-CAD is a geometry preparation tool that can be used to parametrize geometries starting from raw CAD data. This video is aimed at providing a hands-on training to utilize the new capabilities in 3D-CAD to drive innovation.