quadcopter drone

this is a very rigid design suitable for PLA, but better with ABS. Not tested yet for high speed crashes. the arms will accept 1306 motors. Small esc like the DYS xsd20A will fit inside the arm tube. the diatone led board fits in the arm square recess. Some standoffs 12 x 25mm and 2 x 35mm are needed and the pla pieces must be drilled to fit the standoffs diameter round or hexagonal. The top and bottom plates have small protruding pins to show where to drill the screw holes. Small drilled holes are more precise than printed ones. The drone has been tested with a 4s-1550mah lipo with a flight time of 7minutes.