David, Said much better than I. Thank you. Greg Newell Greg's Piano Forté www.gregspianoforte.com 216-226-3791 (office) 216-470-8634 (mobile) -----Original Message----- From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of David Love Sent: Friday, February 01, 2008 10:31 AM To: 'Pianotech List' Subject: RE: Compression ridges was :Do you dry the ribs, along with the board, prior to gluing ? The problem of determining the extent of damage to the panel goes beyond what is visible in the form of pressure ridges and may be much more extensive than what you can see. The issue is whether the extent of the damage compromises the panel's ability to achieve the requisite stiffness to vibrate at certain frequencies, mostly high. Since the cost of replacing the panel is negligible when you factor in the labor costs of removing the panel in one piece undamaged, removing the ribs (you would be smart to convert this to a rib crowned assembly), repairing the obvious areas of damage to the panel, it just doesn't make sense to me to not replace the panel--especially when you can't be sure of the outcome. Unless you are clinging to the romantic notion of old wood being better, I see no reason to go this route and I don't see evidence of old wood being better. If you are hoping for performance which is just adequate or slightly compromised, then it just doesn't make sense. David Love davidlovepianos at comcast.net www.davidlovepianos.com
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