If that thing still has positive string bearing after all it's been through I shudder to think what it must have been like when it left the factory. ddf Delwin D Fandrich Piano Design & Fabrication 620 South Tower Avenue Centralia, Washington 98531 USA del at fandrichpiano.com ddfandrich at gmail.com Phone 360.736.7563 From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Don Hubbs Sent: Tuesday, December 07, 2010 9:28 AM To: pianotech at ptg.org Subject: [pianotech] inverted soundboard I decided to go ahead and give the ribs some clearance from the backpost. I used shims between the post and the ribs which did have clearance to take a little of the pressure off and then took really coarse cloth-backed sandpaper and sanded a grove in the post to get clearance. After re-tuning, the piano does have better sustain and somewhat more volume. The tone in the tenor and treble is quite clear with no false beats, so I don't think any wires are riding up the bridge pins. The bass is still rounder and not as well defined as I would like to hear, but maybe that is a voicing problem or just scale design. I think it is probably going to be a useable instrument, but I am curious to see how stable it is. Thanks to all. Don Hubbs -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20101207/851e90ac/attachment.htm>
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