Quote:
Originally Posted by Chris is me
I'm of the opinion it would be faster to stress test a prototype then it would be to run complete and thorough FEAs on stuff like this anyway. We should just build one. 
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We have "prototyped" chassis out of posterboard in the past. If you do about 1/2 to 1/4 scale, you can cut fold and glue panels together. This softer material can help visualize where additional members may be helpful.