Quadcopter

This lightweight minimalist Quadcopter frame is designed for pilots, learning to fly or pushing the limits. This frame is meant to be a stable, 50 cm in diameter and uses readily available (North America) inexpensive light and rigid aluminium window screen extrusions for stiffness. The arms push fit tight into a central hub which is sandwiched between two hub plates. There are slots for Velcro battery straps. The universal motor mounts push fit tight into the end of the arms. The spacing for c