To enter, post an Instructable that shows how to turn a virtual item into a tangible object. Examples include: 3D printed objects, laser-cut files, and even printed decals using an inkjet printer. So long as something in your project was designed using a computer and turned into a physical object, you are eligible to enter.
Enter by the April 30, 2012, deadline for a chance to win the grand prize, an Objet30 Desktop 3D Printer and six months' worth of 3D printing supplies (a $50,000 value) or one of the ten first prize packages that include an Up! 3D printer. Additionally, entrants who cross-posts their entry in Autodesk's 123D Gallery will have a chance to win a the 123D Judges' Prize.
In case you missed it, be sure to check out our video interview of Instructable's Artist-in-Residence Oliver Kreitman for inspiration!