Create, modify, and share 3D models
Free online editor. One unique feature is the ability to import vector graphics and turn them into 3D objects
3D modeling and animation program for Windows and Mac. There are lots of helpful tutorials and examples on the website.
Open-source program for processing 3D models (useful in preparation of files for 3D printing)
A free web-based service that processes and repairs stl files to prepare them for 3D printing
Free Autodesk software for students!
Students can obtain a FREE 3-year license for a variety of Autodesk software. The website also has links to design a manual, tutorials and a collection of 3D models made by the Autodesk community and offered for use with Creative Commons licensing.