Wow, that robot brings new meaning to word multi-tasking! Nice Job!
I'm thinking the two more or less horizontal cylinders actuate a gate to release the balls to the ball corall. Its difficult to see but all that plastic is like a big funnel that ends right at those cylinders. Anyone have any idea how they telescope the hanging arm??? I'm fascinated with telescoping mechanisms but I cant even guess at how they do it.
Good luck in comp today