How it's made. The launcher is a see-saw resting in two open notches - the ball's end is the heavy end, so it sits on its own; press the other end and the ball flies. The court turns on a peg in the base so the hoop swings to a different angle. The dome is open at the crown, which is where the ball goes in, and which is also why it prints without support. PLA, five parts, nothing to glue.