Point well taken. I defer to the engineer from Arizona. Alan E. -----Original Message----- From: Nick Gravagne <gravagnegang at att.net> To: pianotech at ptg.org Sent: Wed, Feb 24, 2010 10:09 am Subject: Re: [pianotech] Tuning pin torque?!?!? Really, my friends on the list; thisthread has now passed the point of Jame’s simple inquiry for input RE tuningpin torque and is about to spin out of control. Where else should he go to geta simple answer to a simple question? As I read Jame’s post I read foursimple sentences: 1) I have recently purchased several newpianos and discovered during the initial tunings what I believe to be minimaltuning pin torque. 2) The pins feel “spongy” anddifficult to set. 3) Is there an industry standard for pintorque, and if so, what should that torque value be in inch pounds? 4) Any data on this subject would begreatly appreciated. If we ignore question 1, then the followingthree sentences and questions cannot be clearer. Certainly, all those who would like toknow the make and model of these “new pianos” James has purchased makeexcellent points; and yes inquiring minds do want to know. But anyone can seethat Mr. Williams has personal reasons why he doesn’t wish to share thispiece of information. Whether we agree with what we hypothesize are his reasonsfor silence is not the issue. Why not respect his wishes and simplyanswer the uncomplicated questions he has put forth to a technical communitybest informed to do so. As it is, I am less curious as to the make of pianos asI 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 minimumbut on a new piano you’d like to see around 90 – 120 but there isquite a range.” Yes there is quite a range, but aspractical tuners with thousands of tunings under our belts, we also know thatthere is a “tunable range” and on either side of this range thepiano is “un-tunable”. I also prefer the 100 lb. range (plus orminus), but Mr. Williams has told us of an exceedingly low torque. Surely noone would insist that Yamahas, for example, tune best at 75 lbs, or thatSteinways must exceed 150 or there is no hope; the point being that the make ofthese pianos is not critical to the simple questions put forth. If we must insist on the make of thesepianos, or guess as to Mr. Williams’ reasons for silence, we should startanother thread. Respectfully, NickGravagne, RPT PianoTechnicians Guild MemberSociety Manufacturing Engineers VoiceMail 928-476-4143 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100224/5cd88101/attachment.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC