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-   -   Pinning Long Robots (http://www.chiefdelphi.com/forums/showthread.php?t=75613)

spc295 10-03-2009 11:43
Re: Pinning Long Robots
 
we have found a trick that works for our robot, if you notice our robot has between 75% and 80% of its weight on the back two wheels, this essentially makes us a wide robot. (we are narrow) when we are hit the front of the robot pivots into the turn, which rotates the robot in a circle, pulling the trailer away from the pining robot. we can increase our turn by utilizing our turret. our robots turret is a large part of the robots weight, and by accelerating it we turn. (35lb turret with a 27.5" diameter provides a lot of rotational inertia) we designed our turret to act like a gyroscope.

pacoliketaco 10-03-2009 18:45
Re: Pinning Long Robots
 
After attending both the NJ and NYC regionals, and driving 25 matches between them, i found the best way to not get pinned is to drive backwards. Our robot was in the long configuration, and since the trailer is about the same width as our robot, i never had a problem getting out of getting pinned. Driving backwards lets you turn way easier, as the trailer helps spin you around. Another great way to not get pinned is to have a robot on your alliance pin the other alliances robots (thank you team 1796).

Spyder Tom 1622 10-03-2009 21:01
Re: Pinning Long Robots
 
[quote=pacoliketaco;834345] Our robot was in the long configuration, and since the trailer is about the same width as our robot, i never had a problem getting out of getting pinned. QUOTE]

Just wait til' Atlanta, you will see the amazing power of 2543 Titan bot. i do believe from all the matches ive seen, they are the powerhouse to watch out for.
:ahh:

Daniel_LaFleur 10-03-2009 21:22
Re: Pinning Long Robots
 
Quote:
Originally Posted by pacoliketaco (Post 834345)
After attending both the NJ and NYC regionals, and driving 25 matches between them, i found the best way to not get pinned is to drive backwards. Our robot was in the long configuration, and since the trailer is about the same width as our robot, i never had a problem getting out of getting pinned. Driving backwards lets you turn way easier, as the trailer helps spin you around. Another great way to not get pinned is to have a robot on your alliance pin the other alliances robots (thank you team 1796).
Do not assume that what you've seen is what you will get at Atlanta.

There are defensive bots out there that are just plain incredible.

JSmith397 10-03-2009 23:15
Re: Pinning Long Robots
 
as a long robot ifound it easy to pin and out manuvere wide robots backing up truly does help

HighLife 11-03-2009 00:07
Re: Pinning Long Robots
 
Quote:
Originally Posted by Taylor (Post 834084)
Why not just drive backwards? The inertia of the defending bot will take it with you and turn it to its left, freeing you to do as you please.
Also this depends on your proximity to the wall. If the wall is directly to the left in this drawing, you're in a bit of hurt.
You got it, drive backwards and try to swing your robot around.

Here are the Kettering videos IKE was talking about: http://www.adambots.com/wiki/FIRST_2009_Videos

Watch our robot (The yellow power dumper). As the driver I used this little maneuver to get out of a lot of defense.


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