Hello Everyone, I am on a FIRST Robotics Team. This year, the game has presented us with a new challenge. The playing surface is made of rough plastic, but the wheels are hard smooth plastic. Basically killing friction, or at least reducing it by 1/6. Now, my question is how do I increase friction/traction. Note these few things that we must accomplish. - Robot Cannot weigh more than 120 pounds. - We can only use the plastic wheels. - Only the plastic wheels can be touching the ground at angle perpendicular to the ground. What we have so far: - We know that we need to push the 120 pound weight limit and get the robot as heavy as possible. - We know that a low center of gravity will help in increasing friction for the robot. - We know that using a large number of wheels will increase traction, which will result in an increase in grip for the robot. Any help is appreciated past what we have. I also have a couple more ideas, but I want to keep those off the forums. Thank You Sunny G.