Well it was too nice a day to stay inside... Decided to go out in the garage and cut up all my 1/2 inch plywood for the sub road bed for the last 270 degrees of double main turns... Got about 50% of the wood cut, sanded and the first 90 + degrees glued. I wish I had figured this system out sooner for long curved roadbed that's on a grade over an open L girder bench work.
Recently I decided to laminate (2) x 1/2 inch thick plywood sections together making 1 inch thick sub road bed... that way I can cut the curve sections in 30 to 45 degree increments and stagger the joints, when the Titebond Glue dries I end up with a really strong, stable curve. I haven't counted but it's probably 10 to 11 plies with both sheets glued together and since the main lines at this point are on a 1.5 % grade, I really don't want too many butt joints that lead to high or low spots.
Plus there's other benefits, I can't really pick up 3/4 inch plywood sheets anymore !! I have very little waste when I am done, and I can usually find a bunch of otherwise scrap pieces around 2 x 3 or 2 x 4 feet and make good use of them.
It's hard to see what's going on in the photos, too many weights and clamps in the way.
