842 knows that their robot Carmen, as originally envisioned, does not meet the bumper rule:
http://forums.usfirst.org/showthread.php?t=11170
Further discussion of their frame design can be found here:
http://www.chiefdelphi.com/forums/sh...ad.php?t=71878 Note that this current pic has a portion of that frame removed; it looks like they're working on a fix to get legal bumpers.
Let's keep this thread on track discussing only the accumulator roller. It looks like a good design to me. The roller is inside the BUMPER PERIMETER and the soft pieces of tubing shouldn't harm the balls. My only question, have you done testing to see if that's enough little hooks to catch balls reliably?
Edit: I see from the video posting here
http://www.chiefdelphi.com/forums/sh...925#post802925 it works pretty good. Nice!