At 14:20 -0700 23/06/2011, Albert Picknell wrote: >The plate drops when you let off tension. Because the string plane >is below the plate struts, the struts rise when you put tension on >the strings, and drop when you release that tension. It's like >stringing/destringing a bow. ...except that bows aren't made of cast iron and don't need to stay in tune. Piano makers use two main approaches to the design of the structure to make sure that this cannot happen. JD -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110623/8c3683a3/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: bars_01.jpg Type: application/octet-stream Size: 98757 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110623/8c3683a3/attachment-0002.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: bars_02.jpg Type: application/octet-stream Size: 85777 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110623/8c3683a3/attachment-0003.obj>
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