2.007 (spring 2000)

The pictures on the left are the ones I selected to compare for problem set #3.

Design B is the "baseline" to which I "base" my other designs on. It is a very standard dozer with the addition that the dozing shovel slides up and down so to allow driver to decide whether to push only balls or pucks as well.
Design a is a scooper. It scoops up the balls and brings them over onto the slide on its back. A trap door releases the balls when it is aligned with the scoring hole.
Two brushing and spinning parts collect and push objects (mainly balls) inside and out from the open back. The blades (or flaps) are fixed onto a central core, which spins and shoots (in some sense).
A rotating cut-out cylinder collects balls, encloses by rotating on axle, and sotres inside body. Backs up into scoring whole. The back end is either open, or maybe uses a trap door to open and close.