If you zoom in, you can see a 3D printed pulley. That’s attached to a Banebots 775 and winches the wrist upright using a steel cable. It’s spring-loaded in the other direction, so unwinding the spool moves the wrist downwards for intaking cargo off the floor or scoring in the cargo ship.
The cylinders attached to the sides of the elevator are for tilting it backwards so our hatch manipulator fits within the frame perimeter for the starting configuration (similar to last year’s robot).
The pneumatic cylinder inside the cargo ball manipulator is for doing this: https://youtu.be/4wEE6uLtq40
Retracting the cylinder allows the ball to fall farther back so it’s not in contact with the rollers while they spin up to speed. Then it pushes the ball into the rollers to shoot it out.
Re: shooting the cargo into the third level of the rocket? We plan to be flush against the base of the rocket and take a batter shot. The video I linked to was from our very first operational test playing around without any programming/tuning.