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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 07-01-2003, 08:19
George George is offline
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We (60) use 1"x2" & 2"x2" 1/8 wall 6061 Aluminum tubing
(good weld-ability / good working) with a lexsan floor pan/side panels for the main frame
alum tubing / plate for components
6061--- yield strength is 40 ksi hardness is 95 brinell
melting range is 1080f to 1205f
also heat treatable (let cool Slowly or crystallizing may occur)
SEE statement below
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Unread 17-01-2003, 22:41
Steve Team 311 Steve Team 311 is offline
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Shhhhh... everyone keep this a secret, we use sheet metal .090 thick! But i'm not gonna tell you how we do it!
We have wanted to build a full sheet metal frame using 6061-t4 aluminum. We felt we could achieve a better strength to weight ratio.
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Unread 17-01-2003, 23:06
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Quote:
Originally posted by Steve Team 311
Shhhhh... everyone keep this a secret, we use sheet metal .090 thick! But i'm not gonna tell you how we do it!
We have wanted to build a full sheet metal frame using 6061-t4 aluminum. We felt we could achieve a better strength to weight ratio.
I'm really interested in seeing what sorts of results you all have with the sheet metal.

We're using .19" sheet metal for our frame, with some beefier stuff mixed in here and there. I was a little scared of going thinner than that. We'll see how it shapes up in a few weeks, I guess.

Good luck.
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Unread 18-01-2003, 01:39
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Quote:
Originally posted by M. Krass
I'm really interested in seeing what sorts of results you all have with the sheet metal.

We're using .19" sheet metal for our frame, with some beefier stuff mixed in here and there. I was a little scared of going thinner than that. We'll see how it shapes up in a few weeks, I guess.

Good luck.
Sheet metal is what the body of your automobile is made of. By golly I think what your talking about is honest-to-goodness 3/16" PLATE. That will do just dandy for any robot is my shop.
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Unread 18-01-2003, 08:16
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Nothing against extruded aluminum, cause i love it to death, except for the fact that it is just too heavy, so i think we are going to eventually go with the aluminum tubing, either round or rectangle. But i do know one thing for sure, we dont have the weight to spare this year..
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Unread 22-01-2003, 23:47
hi_im_sean hi_im_sean is offline
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we are using aluminum 2x4 tubing that came in the kit. it works well and is strong but we cant weld a lot of disimilar metals on it.
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Unread 23-01-2003, 12:48
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Jeff Waegelin Jeff Waegelin is offline
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We're going to use 3/4" square tubing for our bot this year. We're making a steel prototype, but the final version will probably be aluminum.
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