Thump wrote: SNIP >>> > ribs might be scraped clean of finish. Then, ina >> > "flexed out" state, painted with super-thin CA >> glue, >> > whicj should impregnate the wood, making ita lot >> > stiffer. >> >> Did the ribs loose some stiffness somewhere? How >> much did/do they need? > > Well, I'm guessing that he cwassuggesting that for the > board to go flat, the ribs must suffer some > longitudinal compression, as well. Longitudinal compression? Where? How? What is that? What if they were flat when new - as many are? > If they were > "stretched" into a bow again, then impregnated with > some C.A. I would think that thios oud aid the crown, > greatly. I have an old Knabe upright I think I'll try > this on. I'll get it toa stable, low RH< measure the > crown, bow out ribs and impregnate, and measure again, > all de-strung, and get back to y'all. But it may bea > while, so if anine wishes to "beat me to it", i invite > them to try. No thanks. I ran out of condoms and I'm kinda shy anyway. Terry Farrell
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