In the spirit of legendary inventor Leonardo da Vinci, GrabCAD and Stratasys Education are issuing a challenge to their users and asking them to try and get into his head and reinterpret one of his gear systems using modern 3D printing technology. To enter the contest, entrants need to submit the project to GrabCAD, including all design files (as an STL file), renderings and images of the 3D printed project. It also needs to include an explanation of the project, why the design choices were made and why the 3D printing technology used was selected. Ten contest entries have a chance to win cash money from the $2,500 prize pool, and all winners will receive tons of GrabCAD Swag. You can find out more details about the challenge over on 3DPrint.com: https://3dprint.com/130367/da-vinci-...tem-challenge/