Quote Originally Posted by tonyfoale View Post
Des,

Is weight an issue?
If not, maybe you could machine them from the solid (CNC perhaps) and then drill out the circular part as deep as possible.
I have made tapered and aerofoil tube but never had cause to make D shaped and bent tube.

Tony,

weight is an issue (within reason) ..

I am curious to your references to making airfoil shaped tubing, and tapered tubing (I assume round, but tapered) - can you describe how you did those?

Thanks,
Des