Hi,We use Solidworks 2012/2013, Autocad 2011, Google sketch up 8/13, Magics 13 and 3DMAX 2010 for the 3D Modelling. Please view the similar projects here http://www.freelancer.com/projects/Rendering-threed-modelling/Master-Sketch-Artist-needed-New.html https://www.freelancer.com/projects/CAD-CAM-Rendering/CAD-Design-for-Custom-Utitlity.html were completed and the employers were satisfied with results. Also please view my portfolio & some google sketch up models from here: [login to view URL] [login to view URL]! Have a great day. Art.