Autodesk 123D provides useful tools for making things – for quickly giving shape to your idea, exploring it, and most importantly, making it. 123D free 3D modeling software is integrated with content and making services that work together so you can create, explore, and fabricate your project.
Uploaded to YouTube by 123d
http://www.youtube.com/watch?v=oimFBvqDyR8
Retrieved Friday 10th June 2011 11:15 am EDT