>From a design perspective it is not OK to have a string resting against the coil of a neighboring string. But this may not have started out as a design issue. These holes would have been indexed in one of two ways: either "dimples" were located in the original frame pattern or they were drilled using a drilling template of some sort. In either case errors were common over a production run. Pattern repairs were made by patternmakers whose knowledge of the overall piano was probably limited. He would have little knowledge (or concern) over a row of dimples moving a millimeter one way or another. And that's all it would take to produce this error. Or the worker who made the drilling template could well have made it slightly out of spec. In either case the problem would not discovered until this piano, and a few dozen (or a few hundred) others, were well into production. And then it would take some while and a lot more work for the problem to get fixed. ddf Delwin D Fandrich Piano Design & Fabrication 6939 Foothill Court SW, Olympia, Washington 98512 USA Phone 360.515.0119 - Cell 360.388.6525 del at fandrichpiano.com <mailto:del at fandrichpiano.com> - ddfandrich at gmail.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of David Boyce Sent: Thursday, March 29, 2012 1:16 AM To: pianotech at ptg.org Subject: Re: [pianotech] Not one of Bechstein's design triumphs..... In general, then, do you design folks think its OK to have strings resting against the coils on neighbouring strings? Best regards, David. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120329/da7759a1/attachment.htm>
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