One of the most important parts of our 15" robot is our drivebase. We are using an 8 motor drive with 600 rpm motors, an 8:11 gear ratio, and small omni wheels. We decided to make our base an x-drive because it can go in any direction extremely fast. We also use quick release motors, which means the motors are not screwed on, making changing out cartridges easier. Our motors also do not have any motor caps, so it is extra compact. We designed the drivebase in Fusion 360 and printed some of the parts with our 3D printer.

CAD of our 15" drivebase in Fusion 360

CAD of our 15" robot assembly in Fusion 360