On Thu, October 2, 2008 10:30 am, John Carmichael wrote:
>
>
> Hi Roger:
>
>
>
> This comment of yours is most important, and if itâs true, then that
> would be the way to go. I trust you, so Iâll probably do what you say.
>
>
>
> You said:
>
> John C, I would not put a box section inside the round tube. Unless welded
> all the way along, the benefit is just additive. You gain much more for
> the same weight with a thicker pipe where the benefit is based on the
> difference in the fourth power of the diameters. Thicker pipe is also
> cheaper and easier.
>
>
>
> Thanks Roger! I hope the other guys agree with you.
I think you can get extruded tubes that have internal reinforcing extruded
as part of the tube. Most likely these would be aluminum and I don't know
if that's appropriate for your design.
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