pic: holonomic vex robot

[artdutra04]

Originally Posted by TheOtherGuy

hmm... Im not so sure if that's true. During a summer vex camp we held at our high school, we had the 4th - 8th graders build the squarebots right out of the book. When they were being driven around, they would veer to one side because one of the motors was flipped over. I'm not sure if they fixed that problem or not, but it is certainly noticeable.

How much drifting there is on a Vex robot has a lot more to do with friction in the drivetrain than a discernable motor bias.

If you build the squarebot and you notice that it is always drifting to one side, then one of the sides of the robot has slightly more friction than the other one. If you loosen some of the parts and try to shift some of the pieces around by a few hundredths of an inch you may notice that the drift will disappear.