The testing was fun in a way to me. We put our books on the top parts and the thing was about to fall down. But then when we took the books off it would not stand up. Then we fixed it back up so it can hold 22kg for the live load. The dead load was 50g.
The changes we made were to the top part of it. It was a thin top part and if we put something on it, it would fall down. So we took the top part off and then started putting the books on it and it would stand up. One more change was the cylinders. We added two more to them. That was all our changes.