Quote:
Originally Posted by sportzkrazzy
I think Mike is searching for its ability to spin off of a robot playing defense on it not the structural integrity. If a track drive is hit close to its center of rotation it may have issues spinning off a robot playing defense on it creating a death spin type scenario where you cannot drive forwards or backwards out of the Tbone. This results in both robots making circles locking your robot up instead of enabling it to score. A lot of wheeled Tank style robots have had this issue as well. One way to mitigate this is to use low coefficient of friction bumper materials. This decreases the amount of friction between the two surfaces that your robot is trying to slide off of. You could also think of a way to change your center of rotation by dropping an omni wheel. Remember its not a pin unless your robot is up against a field surface so in theory they could do it the whole match.
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Quick question to the group:
The middle of the 3 wheels contacting the ground on the Rhino has an 0.15" dropped center. We were planning on keeping our center of gravity roughly over this axle, so when accelerating forward it should drive on the portion of the tread between the the back two wheels and when accelerating backwards it should drive on the tread between the front two wheels, shifting the center of rotation by about 9". Obviously we still need to do the actual T-bone test, but does anyone think that this shift in center of rotation would be significant enough to solve the problem of being permanently locked to another robot?