Designed by Zach A, a 7th Grade #STEM student at Skyview Middle School in Pueblo West, CO. Used 123D Design and printed via Makerbot 2. This was a class project to design an original 3-D design into the CAD software. Since there were no known Broncos files at the time, Zach decided to custom sketch his own. Please post pictures if you make this design. uploaded a large version, but is scalable to your size and dimensions. Prints great using 10% infill and 2 shells.