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Re: pic: 1648 Painted Frame / teaser 2
Quote:
Originally Posted by notmattlythgoe
There is a major misconception that 80-20 is heavy
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80-20 is heavier per length than comparable strength box tubing. It's not a misconception. Due to the profile it's also less stiff in some dimensions (especially torsion of the bar).
If you can get the weight out elsewhere (through use of lighter joints or other fabrication methods as a result of the 80-20 profile), then it might be lighter. But, thinwall box tubing with bolted/rivited gussets (vexpro style) is definitely lighter than the same thing made of 80-20.
I'm curious what the weight of OP's chassis as painted is.
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In FIRST, you can either have comfortable safety margins or you can have a competitive robot, you can't have both. - Joe Johnson [more] 
04-02-2014, 12:33
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