Quote:
Originally Posted by Alex.Norton
To clarify what I said earlier (why I don't like mecanums), each wheel creates a vector of force in the direction that it moves but regardless of what direction the robot moves in it also creates a vector perpendicular to the wheel. When driving forward two of the wheels have this vector to the left and two have it to the right so the net is no lateral vector. When strafing these vectors point all in the same direction and the forward/reverse vectors cancel. so no matter how you build or program you robot, by the nature of mecanums there is extra force on the frame and extra sidewards force on the bearings.
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Sure, that part made sense from the beginning. What I'm trying to find out is why you believe this is any more of an issue with mecanums than with omniwheels.
(It's an issue with regular wheels too, by the way. There's a lot of lateral force involved when a tank-drive robot turns.)