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View Poll Results: What do you use for chassis material?
wood 11 5.07%
steel angle 8 3.69%
aluminum angle 36 16.59%
steel tubing (round or rectangular) 2 0.92%
aluminum tubing (round or rectangular) 58 26.73%
Bosch extrusion or similar (aluminum or steel) 89 41.01%
Other 13 5.99%
Voters: 217. You may not vote on this poll

 
 
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Unread 14-09-2002, 01:58
sidewinder sidewinder is offline
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#0066 (Those medeling penquins)
 
Join Date: Oct 2001
Location: ypsilanti, mi
Posts: 72
sidewinder is an unknown quantity at this point
Too heavy

I represent team 66. We build the sturdiest drive chassies i've ever seen, and can rarely be beaten. It is a little know fact that our robot for this last year was actually meant to handle balls. we only had one problem, a 95 lb drive chassy. We are big fans of the 1" extrusion but in my pit scouting for the last few years i have noticed something, The robots built for first don;t have enough power to bend 1" extrusion with any kind of blow.

I beleive that 20 mm extrusion, very light by comparison to its big brothers, has more than enough strength for our purposes.

As for polymers in construction, i haven;t seen many good examples of structural framing comming from it but have seen it in many good low impact uses (33's ball carrier a prime example. But after seeing the plastic bot of, i believe, 49 fall over at grand rapids last year and loose its arm, i have been weary of plastics use for robots.
 


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