[soezgg]

Actually, the 'machinist' as we will call him, had to freeze the urethane to cut it nicely. Then he froze it again to drill the holes for the axles through it. Then, he placed each and every smaller urethane 'wheel' on a lathe and counterbored each side by hand, which took about 2 weeks, seeing as how urethane of that type is incredibly resistant to wear and extremely...squishy.

Good game.