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Unread 07-01-2012, 23:50
Donut Donut is offline
The Arizona Mentor
AKA: Andrew
FRC #2662 (RoboKrew)
Team Role: Engineer
 
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Re: Deciding which bridge to go for

Quote:
Originally Posted by stevend1994 View Post
I'm not certain, but I don't think that you can just drive at the bridge. When there is no external force on the bridge, the bridge remains parallel to the ground, meaning that you have to have some way of pushing it down, or cooperatively have an alliance member who can lift it up, as seen in the game animation.
Spot on here. The bridge is roughly 1 foot high while level (note that that is above the bumper zone!) and returns to level anytime nothing is on it. If you watch the videos put out on the FIRST youtube channel they give a test as to where to place weight at a specific distance to get it to tip. Based on this you can calculate with some torque equations roughly how much force you need to tip the bridge down in front of your robot.