Balancing screw on propellers

DJI Phantom 1,2 and 3 all have screw on props that screw on and off with a countering threads. This is a big reason many Phantom owners don't balance their props. Trouble is , you see the effects in the quality of the video they produce.

Here's how to balance these propellers:

Balancing steps

  1. You will require a balancer with top rollers.

    Balance

    Balance

     

  2. You require threaded balancing shaft.

    Balance shafts

    Balance shafts

    Balance shaft

    Balance shaft

  3. Screw the propeller onto the shaft and see which end goes up. That's the end you need to add tape to. Conversely to need to sand the other end.

    Unbalanced Prop

    Unbalanced Prop

  4. Once the propeller fails to sink on either side, you have balance. Rotate the propeller 180 degrees and see if it remains unbiased.img_20161011_104212

  5. A biased hub will require sanding on the top where the propellers are not stable. Attaching weight to the opposite side is usually unsuccessful.

  6. Notice the tape on this propeller is in three pieces. It is unusual to require this much tape.

    taped prop end

    taped prop end

What else can unbalanced props affect

Propellers out of balance can cause more than jello. Flight controllers misbehave and motors destroy their bearings, when propellers are out of balance.

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