Autodesk 123D is free 3D CAD software to help you quickly give shape to your idea, explore it, and most importantly, make it. 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 designs.
Take your 3D model and make it real in a new and amazing way. The Autodesk® 123D™ Make Technology Preview turns any 3D model into a pattern of flat parts that can be cut and assembled into an artful creation.
Enjoy sculpting and painting interesting and realistic 3D shapes with Autodesk® 123D™ Sculpt on the iPad. It's easy to get started. Choose a shape from the library of creatures, humans, vehicles, and more. Then push, pull and paint to make the 3D sculpture your own.
Turn ordinary photos into extraordinary 3D models with Autodesk® 123D™ Catch. Take photos of your favorite people, places and things and let the power of the cloud magically transform them into detailed 3D models.
For more information: http://www.123dapp.com/