When i started building my Eye beam I messed up so i had to restart but then every thing started going well. I was building it like how it was in the video then we finished the first one. Then we started are own one we made are own one bigger and wider. When we finished the size difference was big then we but cans in instead if weights. For the one me made in the video it held 5 or 6 cans then it twisted one the other side and bent. The second one held 8 to 10 cans it had more strength and it was bigger it tip over after 8 to 10 cans but it didn’t bend that much.