The drone only cost $1,700 to build, using easily sourced components. A camera on each wing allows the drone to "see" in stereo, and two computer processors on board helps process the information. The drone creates a map of the world 32 feet (10 meters) in front of it, identifying obstacles, and mapping a path around them. The drone doesn't require preloaded maps, and can be flown in many environments. The researchers hope that eventually it can even be flown in areas with dense obstacles, like a thickly wooded forest.