Frank, Did you interpret the use of threadlock to be in the agraffe hole or at the threads. I can imagine threadlock around the agraffe threads robbing only as much energy as a tuning pin bushing. How is this related to a rigid terminus? Jude Reveley, RPT Absolute Piano Restoration, LLC Lowell, Massachusetts (978) 323-4545 ----- Original Message ----- From: <pianoguru at cox.net> To: <pianotech at ptg.org> Cc: "Jude Reveley/Absolute Piano" <juderev at verizon.net> Sent: Wednesday, March 25, 2009 10:09 PM Subject: Re: [pianotech] Managing agraffes was Increasing bridge height > ---- Jude Reveley/Absolute Piano <juderev at verizon.net> wrote: >>..... >>serve as a prophylactic against any potential rattling. > > Or maybe a shock absorber to rob some of the energy from the string. A > rigid terminus would certainly be better. > > Aside from the thread lock, I have seem loose agraffes, especially in the > bass bichords, rotating out of alignment that would define equal speaking > lengths. Quite often the strings change direction toward their respective > tuning pins enough that the string tension will rotate the agraffe to find > its best balance between the sideways string pressures. > > Frank Emerson > > >
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