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  #16   Spotlight this post!  
Unread 22-02-2012, 13:47
Andrew Lawrence
 
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Re: Battle of the Middle Bridge

Quote:
Originally Posted by LH Machinist View Post
An aggressive strategy would be - shoot both of your allocated ball and then go for the middle bridge. The remaining bridge balls are off limits to the opposing alliance.
Wait, really? You can't even get the balls from your own bridge?
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Unread 22-02-2012, 13:51
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Re: Battle of the Middle Bridge

Here is FRC23 winning a battle. Reportedly, the opposing robot was using pneumatics to push.
http://www.youtube.com/watch?v=7d9JgsXzhk0
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Unread 22-02-2012, 14:10
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Re: Battle of the Middle Bridge

Quote:
Originally Posted by engunneer View Post
Here is FRC23 winning a battle. Reportedly, the opposing robot was using pneumatics to push.
http://www.youtube.com/watch?v=7d9JgsXzhk0
They beat us to the bridge but not by much. Once our drivers realized they weren't going to beat the cannon of 23 with our pnuematic bridge manipulator, they gave up to not waste any more time. If you look at other videos from the Suffield Shakedown there are matches where a pneumatic appendage beats a motor driven appendage. Its going to depend on every teams design.

I'd say that the center bridge during or right after hybrid will be fought over it nearly every match this season.
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Last edited by jwfoss : 22-02-2012 at 14:13.
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Unread 22-02-2012, 14:27
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Re: Battle of the Middle Bridge

Good job on your drivers to give up once the balls were going the other way. An important skill in driving is to know when to alter your strategy. I think 23 got there a hair before you, and had the advantage (that time). I think it will come down to whoever is first, followed by whoever is strongest. One wrong twitch and the cannon might have fallen off the bridge.

Robots who consistently win bridge balls during auto/hybrid will make good partners. I think this discussion also shows that there should never be a reason to not have all your available balls in the robot at the start. A ball balanced on top of your robot that falls to your side of the field is better than a ball lost to the opponent's side if they win a bridge battle.

Bridge battles now need a name. Tip-o-war? (from tug-o-war)
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Unread 22-02-2012, 14:50
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Re: Battle of the Middle Bridge

Quote:
Originally Posted by engunneer View Post
Good job on your drivers to give up once the balls were going the other way. An important skill in driving is to know when to alter your strategy. I think 23 got there a hair before you, and had the advantage (that time). I think it will come down to whoever is first, followed by whoever is strongest. One wrong twitch and the cannon might have fallen off the bridge.

Robots who consistently win bridge balls during auto/hybrid will make good partners. I think this discussion also shows that there should never be a reason to not have all your available balls in the robot at the start. A ball balanced on top of your robot that falls to your side of the field is better than a ball lost to the opponent's side if they win a bridge battle.

Bridge battles now need a name. Tip-o-war? (from tug-o-war)
QFT.

At Suffield Scrimmage 2168 and 175 were constantly battling for the center bridge. Though we made it there quicker, our device was more difficult to align and lacked necessary torque.
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Unread 22-02-2012, 15:29
Eric Kosek Eric Kosek is offline
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Re: Battle of the Middle Bridge

Or shoot your balls while you are drivng toward the bridge......
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Unread 22-02-2012, 22:26
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Re: Battle of the Middle Bridge

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Originally Posted by SuperNerd256 View Post
If you use hybrid mode to get all balls off the bridges and onto your side (one bridge per each robot on the alliance), than you will have 12 balls on your side, a little more than each robot can handle. If all 12 of those make it to the top basket, it's worth 36 points.
But you've given your opponents 9 points for the [G25] technical foul.
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Unread 23-02-2012, 08:57
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Re: Battle of the Middle Bridge

Quote:
Originally Posted by GaryVoshol View Post
But you've given your opponents 9 points for the [G25] technical foul.
QFT.

Make sure your drivers know the rules. This is also why the balls on your color are safe. If your opponent gets them, you get 9 points free. All you have to win is the middle.

Granted, getting the two from your bridge to your side during auto (without accidentally tipping it the other way!) is still helpful
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Unread 23-02-2012, 11:38
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Wink Re: Battle of the Middle Bridge

Quote:
Originally Posted by Eric Kosek View Post
Or shoot your balls while you are drivng toward the bridge......
With a flexible arm just in case you don't have a lovely turret.
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  #25   Spotlight this post!  
Unread 23-02-2012, 11:43
Andrew Lawrence
 
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Re: Battle of the Middle Bridge

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Originally Posted by GaryVoshol View Post
But you've given your opponents 9 points for the [G25] technical foul.
I forgot the opponent's bridge was off-limits. Thanks for the clarification.
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Unread 23-02-2012, 14:47
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Re: Battle of the Middle Bridge

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Originally Posted by SuperNerd256 View Post
...
In conclusion, the balls on the bridge will only improve your score if you can gather them AND have all 6 robots on your alliance score in hybrid mode.

Just something to think about when doing autonomous strategies.
I was trying to do the math - - when I found that this should read
have all 6 balls on your alliance robots score in hybrid mode.

or
have all 3 robots on your alliance score their allocated balls in hybrid mode.

You've already reduced the number of extras to the likely number of 4, I think.
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Unread 23-02-2012, 15:32
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Re: Battle of the Middle Bridge

Actually getting the 2 balls from the opponent's bridge every time still nets a 3-point gain if they're both put into the high goal in autonomous. Of course, if 1 ball misses...

We're using flexible passive actuation to pull the bridges down and active actuation to bring the device back into the bot. That way if we lose the battle of the bridge, we don't break anything on the bot. I'll have a reveal collage later this week.

If an alliance doesn't have an autonomous planned for the middle bridge, then that's a mistake -- even if the balls aren't shot off in autonomous, they're still very valuable if they're in possession within the first few seconds of teleop before defense can be a factor.
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