Which Chinese built piano was it? David Ilvedson, RPT Pacifica, CA 94044 ----- Original message ---------------------------------------- From: "Nick Gravagne" <gravagnegang at att.net> To: pianotech at ptg.org Received: 2/24/2010 10:09:13 AM Subject: Re: [pianotech] Tuning pin torque?!?!? >Really, my friends on the list; this thread has now passed the point of >Jame's simple inquiry for input RE tuning pin torque and is about to >spin out of control. Where else should he go to get a simple answer to a >simple question? > >As I read Jame's post I read four simple sentences: > >1) I have recently purchased several new pianos and discovered during >the initial tunings what I believe to be minimal tuning pin torque. > >2) The pins feel "spongy" and difficult to set. > >3) Is there an industry standard for pin torque, and if so, what should >that torque value be in inch pounds? > >4) Any data on this subject would be greatly appreciated. > >If we ignore question 1, then the following three sentences and >questions cannot be clearer. > >Certainly, all those who would like to know the make and model of these >"new pianos" James has purchased make excellent points; and yes >inquiring minds do want to know. But anyone can see that Mr. Williams >has personal reasons why he doesn't wish to share this piece of >information. Whether we agree with what we hypothesize are his reasons >for silence is not the issue. > >Why not respect his wishes and simply answer the uncomplicated questions >he has put forth to a technical community best informed to do so. As it >is, I am less curious as to the make of pianos as I am to the dearth of >answers RE torque. I read only one post with an answer --- David Love's. > >I agree more or less with David: > >"Probably about 60 lbs is minimum but on a new piano you'd like to see >around 90 - 120 but there is quite a range." > >Yes there is quite a range, but as practical tuners with thousands of >tunings under our belts, we also know that there is a "tunable range" >and on either side of this range the piano is "un-tunable". I also >prefer the 100 lb. range (plus or minus), but Mr. Williams has told us >of an exceedingly low torque. Surely no one would insist that Yamahas, >for example, tune best at 75 lbs, or that Steinways must exceed 150 or >there is no hope; the point being that the make of these pianos is not >critical to the simple questions put forth. > >If we must insist on the make of these pianos, or guess as to Mr. >Williams' reasons for silence, we should start another thread. > >Respectfully, > > >Nick Gravagne, RPT >Piano Technicians Guild >Member Society Manufacturing Engineers >Voice Mail 928-476-4143 > > _____
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