It's important for laminate panels to have an odd number of plies. If you are going to use a 5 ply panel, it would be best to add 2 additional plies; one on each side. When a laminated panel has an even number of plies, there is a possibility of warpage (yes, even with hard rock maple). Michael Spreeman www.spreemanpianoinnovations.com >From: Hotwheelsp at aol.com >Reply-To: Pianotech List <pianotech at ptg.org> >To: pianotech at ptg.org >Subject: Pinblock dilemma for a first timer. >Date: Thu, 1 Jun 2006 23:39:47 EDT > > >I have begun rebuilding my first piano. It is an upright player. Upon >removing the plate from the piano, the pinblock and soundboard fell out. >(Almost >all the glue joints on the piano have come loose, so this is not that >surprising) Anyway, the old pinblock measures 1 3/4 inch thick. After going > through >the supply house catalogs (Schaff and Pianotek) the thickest new pinblock >obtainable was 1 1/2 inch. What should I do to obtain the original >thickness? Any >suggestions would be greatly appreciated as I lack experience in this >regard. > >Phillip Pardue >_Hotwheelsp at aol.com_ (mailto:Hotwheelsp at aol.com) > >P.S. What glue is recommended for regluing the upright frame? I was >thinking >epoxy. > > >
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