Introduction: Arm Ball Dropper

This dropper drops down to create a path for the k'nex ball to travel on. The structure is pretty simple, and it requires few pieces.

Step 1: Upper Arm

Step 2: Lower Arm

Step 3: Full Arm

Step 4: Body

Step 5: Finished!

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sandroknexmaster (author)2015-04-18

Nice!

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