Build Instructions

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• 1

  Extend the servo horn

  In order to get the amount of throw needed to wiggle the hat, I needed to extend the length of the servo horn. I did this by quickly molding some thermal-morph plastic to the horn. You'll see that as the very roughly formed red extension attached to the horn in the pictures below.

• 2

  Create the servo harness

  To attach the servo to the hat, I cut a small strip of plastic canvas, which is available at any craft store.

  Then I cut a rectangular hole for the servo and held it in place with a little hot glue.

  Finally, on each end of the plastic canvas, I attached a strip of self-adhesive Velcro. The other half of the Velcro was attached inside the hat. (pictured below)

• 3

  Attach the servo harness to the hat

  I attached the servo harness by turning the hat inside-out and adhering the self-adhesive Velcro strips about 2/3rds the way up the hat. Then I attach the horn of the servo to the hat using a safety pin.

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