Ram had a home made gear box and cast silicon tires. The unusual part is that I pointed the sensor directly sideways to the robots movement. There was Six 3 Kg Robot Sumo competing. This was just enough to make an exciting elimination. The numbers of these larger machines are increasing slowly, but I'm noticing that their ability is also getting better.
Speed seems to be one big improvement, along with more traction.
This was Broken Rib's weakness, it was totally blind from the sides and rear, and no mechanical protection either. Goliath won the second place in the 3 Kg class. Wow, is all I can say. Goliath had to beat out several robots to get to the second place, and almost got a championship. Woody won the third place.