This is a project that I had to do along with three others from my engineering class. We had to design and build it. All it had to do was climb stairs, which as you can see it did very easily. This semester is now over and I will be taking the summer off. After the presentations were over, the teacher said that whoever wanted to pit their stair climber against the other ones had his blessing, so everyone took them out in the hall to try to have their projects push the other ones. Ours went up against one that probably weighed 200 lbs because it was made out of solid steel, but ours pushed the other one backwards a few inches until the belt popped off the other one. As you can guess, we were very happy that ours defeated the other one.