I bought a 6ft folder specifically for this task originally, it does the job beautifully for 22swg L163 but sadly not much heavier, so I need a heavy duty one realistically, still total spar length in the region of 10ft so a joggle and join needed.
The laminates are 3mm 2024 T3, and taper away as you can see, I did all these rivets with a support block, a hammer and a punch. I recently bought a x2 rivet gun and what a waste of time it was doing it manually!
