I have been thinking about building lighter horns of La Scala size, and one critical feature would be having the walls of the bass chamber in bent hardboard only 6mm thick. To accomplish this I have to fasten the board to bent wood. I tried this with some scrap material. Every other cm I allmost cut through the wood using a japanese pull saw,

I discovered that the wood splinters very easy so everything has to be predrilled, I also have to test how wide the wood strip has to be to fit screws and perhaps a sealing strip. Time to scramble up some prototype...