On recent robocup, Me and team was on competition. We had robot that had rubber tracks, but it wasn’t able to climb up hills. We was trying to make wheeled robot, it had 2 front wheels and behind was thing with small ball that can roll in any direction. But thing was, robot wasn’t able to climb up anyway, because its weight came to rear ball wheel, and fell down (because that one has no traction).
So my question is:
Which wheels or tracks has best or good traction? And how to implement it to robot?
Thanks for all answers