This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment I taking a long shot here, but - I think finger joints are only = appropriate at end grain joints. That way the long direction of the = grain goes into the fingers and all is strong. If you finger joint = perpendicular to the grain, you have little fingers whose edges cut = across that grain and the fingers have no strength. My suspicion is that = a finger joint used to glue up planks of spruce for a soundboard would = have no significant strength increase over a straight, flat-cut joint. A = finger joint may be a good thing if good spruce gets so scarce that our = four or six-inch wide planks are not available in five-foot lengths! Terry Farrell =20 ----- Original Message -----=20 From: Erwinspiano@AOL.COM=20 To: pianotech@ptg.org=20 Sent: Sunday, January 13, 2002 11:23 AM Subject: Re: my own Soundboard In a message dated 1/12/2002 9:52:03 PM Pacific Standard Time, = gnewell@ameritech.net writes: Gregg writes .=20 I thought that tongue and groove might be a good idea long = before I heard about it here. Lately I've been day dreaming about finger = joints. Any feelings on how that might work in a soundboard situation? = It seems that a finger joint would offer more surface area than a tongue = and groove. Call me a ponderer.=20 I would love to here from=20 Greg -Finger joints will not work. Even the tongue and = groove joints must be positioned towards the bottom side of the panel so = that they are not exposed while diaphramizing.=20 If you've not ever tried to make a straight line over large = lengths of wood then I must tell you how difficult it is even for the = best woodworkers. Dale=20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/a7/23/e8/ea/attachment.htm ---------------------- multipart/alternative attachment--
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