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Editing Step 34 —

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We will now modify the servo horn.

Start by using a screw driver to remove the round white servo horn on the servo.

Take the two-arm servo control horn (in the same box as the HS-81 servo) and cut off one of its arms using a diagonal cutter.

Also use the diagonal cutter to remove the corners from the cut-off portion of the horn. This will allow the arm to fit inside the hole cut out in the Camera Mount arm.

Wear eye protection when cutting the servo horn.

Install the modified arm on the servo.