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Unread 29-02-2012, 12:03
RRLedford RRLedford is offline
FTC 3507 Robo Theosis -- FRC 3135
AKA: Dick Ledford
FRC #3135 (Robotic Colonels)
Team Role: Mentor
 
Join Date: Jan 2010
Rookie Year: 2009
Location: Chicago, IL USA
Posts: 286
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Re: How much Bridge Space does your robot need?

Quote:
Originally Posted by Bjenks548 View Post
Very interesting that so far 42.36% of teams are 30" or over. This doesn't allow 3 of their robots on a bridge, let alone room to balance. An alliance looking to balance 3 on the bridge might be able to have 1 of these robots if they are a good scorer or defensive robot but 2 is really pushing it.
No, perhaps these teams were smart to assume that there would be other teams like us that can balance on the bridge by HANGING OFF the SIDE!
Only ~10 inches of our bot + ~3" of bumper, for total of ~13" overlaps with the side of the bridge, and we are near to a max. KOP size at 27"x37" We can drive the bridge end-to-end, balancing along the rail, while occupying only 13+ inches of its width. We weigh near 120 lbs and can both balance it in 3 seconds from first wheel up, or hold the position alone on bridge to keep it lowered. This leaves slightly under 35" of bridge width fully clear for our two long bot alliance partners to keep shooting until the last 10-20 seconds, at which point they can then just drive right up the PRE-TILTED (by us) bridge, which we, having already finished our defensive role duties, have already occupied and lowered for them, so that they just need to align themselves and roll smoothly right up without any jarring edge impacts or lowering delays.

So, if they can roll up the bridge aligned in a nearly bumper-to-bumper fashion, and then both stop with each on either side of center, we will quickly finish the balancing of the bridge.
We estimate under 10 seconds for our alliance to complete a 3-bot balance is easily possible with our bridge side overhang scheme, since having all three bots close to the center of the bridge makes the balancing process a lot easier and quicker. This means max shooting time for our partners and, with reasonably precision up the bridge driving accuracy by them, our alliance can count on a near certain +40 point bonus every match.

-Dick Ledford

Last edited by RRLedford : 29-02-2012 at 12:26.
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