Ok... and I just want some clarification here.. Is there some dissagreement in your two positions, or is the seeming difference of positions here due to the fact that the equilibrium I precondition can not actually happen (as per the rest of Dels reply) ? Delwin D Fandrich wrote: > That is, if a unrestrained 1500 mm wide panel (at 4% MC) is taken to 13% it > will probably end up being somewhere between 1520 and 1530 mm wide (at 13% > MC). So, if you restrain this expansion to 1500 mm and let compression set > work its magic for a few years and then take it back to 4% MC it will end > up somewhere between 1470 and 1480 mm wide. > Ron N writes You've seen the answer to this question in a lot of pianos. It will shrink, but not nearly as much as an un-crushed panel would..... Otherwise, I think I have understood basically what I was asking about. Thanks muchly -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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