This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hi Terry, In drying out sound boards one method is to draw a pencil line accross = the board against the grain, mark out a specific length 1M or 4', place = board in oven (or however you are doing it) and when measurement has = srunk by 1.5 CM or 1" the board is ready for assembly. MEASUREMENTS ARE = NOT ACCURATE. ONLY AN INDICATION. This is the method once used by a piano manufacturer in Sydney = Australia. I think it was Bently, ask Ron Overs, he may have the = formula. If you know what the MC of the timber is to start with you can work out = the what the shrink amount would be when the board is reduced to 6.5 MC = completely. By useing a humidity setting (even if accurate, you would = still have to leave the board there for a specific time. Regards Tony Caught ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/70/84/51/8e/attachment.htm ---------------------- multipart/alternative attachment--
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