All that I have seen have been edge glued. A good edge-glued joint should be (and is) stronger than the wood itself - so there is really no reason to ever see the joints. When I clean up my shop floor of wood cuttings around the bandsaw, I routinely grab a few several-foot-long cuttings from the edge of a spruce soundboard panel(s) (comprised of several/numerous edge-glued flitches) and give it a whack on a table edge to make it smaller for the trash can. I enjoy inspecting the breaks - I have never seen one break at the joint - always breaks somewhere in the solid wood. Terry Farrell www.farrellpiano.com ----- Original Message ----- From: "James Grebe" <pianoman@accessus.net> To: "Pianotech" <pianotech@ptg.org> Sent: Thursday, October 28, 2004 7:47 AM Subject: Re: Cracked Lid > On long grands where the lid has been kept mostly in the up position you can > imagine the stress, over the years it put on the glue joints on the long > core panels glued together for the lid with only support on one end and the > other just kind of hanging out there. It is a wonder that we do not seem > more of this in anything over 6'. I do not know if they used any special > types of joint between the boards or if they were all just edge glued. Any > one tore one apart to see.? > Jim > > James Grebe > Piano-Forte Tuning & Repair > Creator of Handsome Hardwood Caster Cups > (314) 608-4137 > WWW.JamesGrebe.com > 1526 Raspberry Lane > Arnold, MO 63010 > BECOME WHAT YOU BELIEVE! > pianoman@accessus.net > ----- Original Message ----- > From: "Paul Chick (Earthlink)" <tune4@earthlink.net> > To: "Pianotech@Ptg.Org" <pianotech@ptg.org> > Sent: Wednesday, October 27, 2004 7:05 PM > Subject: Cracked Lid > > > > List readers: > > > > I inspected a recently refinished mahogany veneered lid for a 1901 > > Steinway > > Grand that is showing cracks through the finish telegraphed from the > > joints > > of the core material. There doesn't appear to be any cross banding > > between > > the core-which looks like oak-and the face veneer. The cracks are from > > the > > hinge end and show on both sides of the lid. The shop is a first rate > > refinishing facility with very talented staff. No one hs ever seen this > > problem before, and no one remembers seeing the cracks in the lid before > > refinishing. The stripping process does not use waterbased strippers or > > rinses. The humidity during stripping and finishing was close to 60%, now > > it's about 40%. Has anyone seen this in other lids/pieces from that era? > > I'd > > appreciate any thoughts or experiences. > > > > Thanks > > > > Paul C > > > > _______________________________________________ > > pianotech list info: https://www.moypiano.com/resources/#archives > > > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
This PTG archive page provided courtesy of Moy Piano Service, LLC