Our robot named Cronus (I want to change it to "Tardis") playing "Lunacy" at a practice tournament at Simley high school. The robot was designed to gather the orbit balls and deliver them to the human players.
The first clip is just practice before a match, the second is practice on the "regolith", and the third is an actual match. The robot is huge for as much obstruction of the trailer as possible, and the slanted top to deflect the balls (it actually worked once in the video!). A pneumatic door keeps the balls in, and a pneumatic pusher kicks them out. It works really well to sweep the edge of the field. I didn't catch that on the video, but I did get video of Cronus about to do it, which is right at the end of this video.
If you are interested in this, google FIRST robotics, or visit our site at http:/robotitans.com/.
Thanks for watching!