Thread: pic: Team 2502 Chassis Teaser
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Unread 08-02-2010, 09:03
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Re: pic: Team 2502 Chassis Teaser
Quote:
Originally Posted by Techgirl675 View Post
We have a welded steel tube chassis and it is only 10 pounds including all of the supports.
Welded 4130 steel (maybe 1020?) is probably the lightest possible frame construction barring composites, which are cost-prohibitive for FIRST. Alloy steel is better than 6061-T6 aluminum in nearly every regard...

I've made FSAE car frames with largely .065"/0.045" walled round tubes. 0.035"x0.750" square tube would be plenty strong enough for a FIRST robot. And no strength loss from welding FTW! Unfortunately my team didn't have the facilities to make a frame like that this year
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