A small issue with our Mecanums

[meatmanek]

Originally Posted by devaaki

It helps if you think of the wheels applying forces perpendicular to the axis of the rollers. when the rollers are arranged as you had them, the diagonals were applying forces in the same directions, which led to problems. You can either arrange the roller axis as an X across the bot, or an 'O' around the bot... not quite sure which one is better, as flipping the bot upside down will result in the other configuration.

Good luck

See my previous post. The axis of the rollers must be radial to the robot, not tangent to it. If the rollers are tangent to the robot, 90 degrees to the rollers will always be pointing out from or in to the robot's center, hence, you cannot turn your robot, or prevent others from turning it.