Shoot the Moon

An obstacle in our electro-mechanical Screwball Scramble game. The player must open and close the rods to get the ball across using a slide potentiometer. A servo is connected to a circular CAM. As the CAM rotates, the attached linkage pushes and pulls back and forth on a 3D printed piece with angled slots that the rods run through, forcing the gap between the rods to expand and contract.