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View Poll Results: How does your robot posess the ball?
Roller (Ball magnet) 123 65.78%
Vacuum 35 18.72%
Armature 0 0%
We do not intend to posess the ball 11 5.88%
We did not ship a posession device, and will decide before competition 18 9.63%
Voters: 187. You may not vote on this poll

 
 
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Unread 28-03-2010, 23:37
RRLedford RRLedford is offline
FTC 3507 Robo Theosis -- FRC 3135
AKA: Dick Ledford
FRC #3135 (Robotic Colonels)
Team Role: Mentor
 
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Re: Ball posession: Roller (ball magnet) or vacuum?

Quote:
Originally Posted by ttldomination View Post
Our bottom bar is fixed and it works like a dream. I can officially say that when I have the ball, I can drive it like I stole it. Heck, we can even play defense with a ball in our rollers.

Our front wheels were off-set from the front of the chassis by roughly 2" before we put on the roller system. We toyed around with the idea of having the bottom bar articulate, but in the end, we had to move our entire drive train up 2" to keep the bottom bar between the front two wheels.
Sounds like a lot of work to get good ball possession, but confirms how critical it to get this feature right, that you would re-do the whole drive train to handle the lower roller correctly. With our 8" Plaction wheels this approach is not even an option for us.

-Dick Ledford
 


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