----- Original Message ----- From: "Farrell" <mfarrel2@tampabay.rr.com> To: "Pianotech" <pianotech@ptg.org> Sent: December 17, 2002 10:30 AM Subject: Re: Soundboardcrown .... I have a reptile environment temperature controller that keeps the temp real steady at whatever temp I dial in. You have a what???? > > > You can estimate the moisture content of the soundboard panel by > > monitering the temperature and relative humidity inside the box and > > comparing those to charts printed up for the purpose. The US Department of > > Agriculture has placed the entire book, "Wood Handbook: Wood as an > > Engineering Material" online. > > Is this how you determine the MC of your panels before rib glue-up? Yes. We monitor the room daily and subtly adjust the temperature as required. A newly glued up panel stays in there for a week or so to allow the moisture from the glue to work itself out and stabilize before we rib. > > If anyone wants a copy of Chapter 3 of "Wood Handbook: Wood as an Engineering Material" (it has the charts in it) I can email a copy to you. It is in PDF format. And it's legal. Being a publication of the US Government -- i.e., paid for with our tax dollars -- it is free of copyright. Del
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