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Old 12-05-2013, 03:09 PM   #30 (permalink)
RustyLugNut
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The joints of any space frame structure . . .

Quote:
Originally Posted by CFECO View Post
I just received a quote from a retailer who will sell small quantities of Fiberglass rectangular tubing. 40' of 2" x 4" for $869 including delivery, this is still too much. There is 184' of surplus 2" x 5" in Springfield Missouri for $225 but they will not ship.
. . . are very critical. With metal tubing, it is a simple exercise of fit and welding or brazing. With brazing, gusset plates may be needed depending on loading.

Designing composite joints is even more complex as it is not a homogeneous structure that is transferring the loads. The joints in your structure could very well be the weak links in your car.
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