This is a SumoBot chassis that can be laser cut and assembled with superglue. It is designed to house two Solarbotics GM8 gear motors, two QTR-1A reflectance sensors, two Sharp GP2Y0A21YK0F analog distance sensors and an Arduino. The files are easy to modify to fit other motors and sensors. I have cut this out of acrylic and masonite. Both worked well.