Sandman is a combat robot that uses a spinning vertical disk to tear through the opponent's armor. It has both a 12lb and a 15lb configuration. The only significant difference between the two is the disk's weight, making it easy to swap between the two weight classes. Sandman also has a unique drivetrain. It uses brushless motors and has a 3D printed gearbox integrated inside the wheel to save on space, weight, and cost.