[Vu2000]

If you're talking about the exploded gearbox picture they gave to us with the plastic pillow blocks we used them but not for the drive train. We actually used it for our arm that would moved back and fouth on a pivot on the front of our robot. It went probably a total of 180 degrees, 135 degrees up and it would lay flat on our robot in order to go under the bar and about 45 degrees down. We made the arm about 24 x 30, and in theory it could pick up boxes because we cut it in a shape in order it to pick up one box. The gearbox ratio we put in it was 250:1 in order to lift the aluminum arm, We had 3-5:1's and 1-2:1's. The chiaphua motor was used and we were actually surprised that the drive train people didn't use them just because we didn't have proper housing for them. But overall the gearbox was actually the most reliable thing on our robot, and never ever broke down, probably because we hardly ever used it, because we had every single trouble you can think of with our drill motor transmissions after every single match, but yeah the gearbox was reliable.