The Meshmixer software is a free CAD software part of the Autodesk software family. The Meshmixer is not a typical CAD software, as it does not allow you to create your product from the beginning. Instead, this software will help you with animation, modeling, zippering, hole filling, hollowing, 3D surface stamping, and auto repair of pre-existing models that you modify to make your own. It is installed on the Mac Desktops in the library.