Omni wheels

[fuzzy1718]

The bottom right drawing is a bad idea, we tried somthing similiar, 6wd instead of 4, but you will never get the 2nd direction wheels to get traction, unless you use a suspension system. Due to the rollers on the wheels the frame never stays level long enough to gain traction with the 2nd direction wheels.
Go with the plastics ones, we tried the aluminium ones and once they are bent they are hard to get back straight, and make driveing in a straight line a nightmare, even with a gyro.

[vivek16]

Originally Posted by fuzzy1718

The bottom right drawing is a bad idea, we tried somthing similiar, 6wd instead of 4, but you will never get the 2nd direction wheels to get traction, unless you use a suspension system. Due to the rollers on the wheels the frame never stays level long enough to gain traction with the 2nd direction wheels.
Go with the plastics ones, we tried the aluminium ones and once they are bent they are hard to get back straight, and make driveing in a straight line a nightmare, even with a gyro.

Well, we did double up the aluminum omniwheels so that would have prevented any bending. AM sells a spacer to double up the wheels like that.

-Vivek

[AdamHeard]

Originally Posted by fuzzy1718

The bottom right drawing is a bad idea, we tried somthing similiar, 6wd instead of 4, but you will never get the 2nd direction wheels to get traction, unless you use a suspension system. Due to the rollers on the wheels the frame never stays level long enough to gain traction with the 2nd direction wheels.
Go with the plastics ones, we tried the aluminium ones and once they are bent they are hard to get back straight, and make driveing in a straight line a nightmare, even with a gyro.

Both frames have 4 wheels offset 90 degrees from each other. I'd imagine both have the same problems without a suspension.