Build: HMF U680

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This is the HMF U580 Pro Carbon Fiber Folding Quadcopter Kit

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– careful of the different length screw for arms.

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– hole on opp of arm does nothing
– arms aluminum fitting groove must be seated in. fittings have left and right difference

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– no spare screws boo!

– bottom plate to arm is really too close to edge for strong build.

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Below, you see how the arms fold.

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