CX 20 quadcopter retractable landing skid with 2 battery holder

material used: g10 or cf 1/16 thick, 2-56 nuts and 3/16 and 1/4 2-56 screws, 4-40 screw and nuts 1.5 long x 1/4 dia all spacer with 2 drilled in the center to clear the shaft of the retract servos and thin nylon spacer for the 4-40 screws.