Robot Shipped, one last pic

This was taken well before the robot shipped but I didn't get around to uploading it. It's one of my favorites, so I thought I post it anyway. It shows the chain drive that powers the shooting column. As the moon rocks travel up the shooting chamber, each roller it encounters is moving faster than the previous set, thanks to the gearing shown here. With the creative routing of the chains, a single motor is able to power both sides of the rollers (one rolling counter-clockwise, the other clockwise).