For this project, we first built a "test truss" based on a design provided. Then, we tested the truss in a stress analyzer and saw how much force it could maintain before snapping. Ours could only withstand 14 pounds. So, we knew that that design wasn't very efficient. Then, we used the experience gained from the test truss and designed and built a more efficient truss with better supports. Our final truss held up 23 lbs of force. I learned that the most important aspects of the truss are the supports. Our test and final truss broke because our supports weren't sturdy and efficient enough. It's important to calculate the points of most stress and put supports there. I also learned that material is important for having a sturdy truss. One truss that had our same design, but used a stronger balsa wood, held up over 100 lbs. So, ours was not necessarily a bad design, but just needed more supports and a stronger material.