Quote:
Originally Posted by topgun
I am confused on this. Can someone explain why having drop down casters would help with defense? Also, what do Drop Down Outer Wheels provide? Some pictures would help if possible.
Thanks.
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Traditional Skid Steer Drive trains are very susceptible to 'T-Bone'* pins. Because Most Skid Steers rotate around their center, or somewhere close to it, they cannot simply spin out of the pin - if you draw a simple sketch, you'll see that while you're rotating one end of your robot away from the defender, you're also rotating a side into the machine.
Dropping a caster/omni-wheel/skid on one end helps to move the pivot point of the drive to the opposite end, which allows the robot to simply spin out of the pin.
*T-Bone Pins usually refer to an instance where a robot is hit perpendicular to it's drive train's motion - these usually happen on open field, essentially pinning a robot without needing a wall/object.