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I was talking to our mentors, and they suggested instead that we use thin wall copper pipe and fill it with foam to make it rigid. When this is done, it's supposed to be as strong as the aluminum. The advantage is that welding is really easy, and can be done with something as small as a pen-torch, and it's pretty light. Has anyone done this (or seen another team that has done this)? Anyone know of any disadvantages?
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Zan Hecht
Scorekeeper: '05 Championship DaVinci Field/'10 WPI Regional
Co-Founder: WPI-EBOT Educational Robotics Program
Alumnus: WPI/Mass Academy Team #190
Alumnus (and founder): Oakwood Robotics Team #992
"Life is an odd numbered problem — the answer isn't in the back of the book." — Anonymous WPI Student
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