Autodesk 123D – Free 3D Modeling Software, 3D Models, DIY Projects, Personal Fabrication Tools [via]
123D is a free solid modeling software program based on the same Autodesk technology used by millions of designers and engineers worldwide. Not an engineer? No problem, with Autodesk 123D you can design precise and makeable objects using smart tools that let you start with simple shapes and then edit and then tweak them into more complex shapes.
Autodesk 123D – Free 3D Modeling Software, 3D Models, DIY Projects – [Link]