Cylindrical Screen Done!

I got the 180+degree 7ft diameter, 12ft around screen installed for the flight sim.

I ended up using 3 threaded rods from floor to ceiling to hold it in place with nuts at both ends to tighten the rod in place (much like a shower curtain rod).

Adjusting Threaded Rods

My evil plan worked! Putting the laminate countertop material in a top and bottom routed groove in a frame completely keeps it stable.