---------------------- multipart/mixed attachment >I have noticed that too, Joe. But what are we going to do. If we build >laminated boards, they will have to be 100% rib crowned, no???:-) > >David Love Hopefully, but... A year or so ago, I glued a piece of 5mm piano crate sheathing to an 18mm thick X 25mm wide X 800mm long flat pine stick, pressed into a 6mm crown. A 220 pound weight I happened to have standing around handy wasn't enough to push it flat at the time, and still isn't. I guess I should do a long term load test on it just for the educational value, but I found it interesting that the assembly got that stiff with that little structure. A long term load test will give that highly inferior Titebond a chance to creep away with the crown too, as an additional test. Ron N ---------------------- multipart/mixed attachment--
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