Thanks everyone for the suggestions. Consensus seems to be go with a
sleeve or shim. I'll give this serious consideration. It makes sense.
Don is there any preferred alu stock vendors in AB that you've dealt with?
I fear my junk pile was depleated on our last move.
You might consider using emachineshop. I had some sleeves
made for my tower legs. You don't need to worry about
starting with a certain tube size. You just specify
inner and outer diameter and material (6061, etc.)
They CNC machine it from whatever size/shape material
they have on hand, could even start with a square bar.
They have free software to use to specify the object
you want in 3D:
www.emachineshop.com
Rick N6RK
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