Don’t underestimate the power of compass point voicing. It really is the method of choice for these types of hammers and is relative quick and painless. But a new set of hammers would no doubt be better. David Love www.davidlovepianos.com From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Dale Erwin Sent: Friday, June 22, 2012 6:42 AM To: pianotech at ptg.org Subject: Re: [pianotech] broken strings Also you may wish to simply shape and voice one note first to see if a reall change is possible before you waste your time on a set of recalcitrant hammers. Dale Dale Erwin R.P.T. Erwin's Piano Restoration Inc. Mason & Hamlin/Steinway/U.S. pianos <http://www.Erwinspiano.com> www.Erwinspiano.com Phone: 209-577-8397 -----Original Message----- From: David Love < <mailto:davidlovepianos at comcast.net> davidlovepianos at comcast.net> To: pianotech < <mailto:pianotech at ptg.org> pianotech at ptg.org> Sent: Fri, Jun 22, 2012 6:28 am Subject: Re: [pianotech] broken strings Sometimes the scaling is to blame if the break point percentage is too high. But hammers can contribute and pianists can too. I would not radically alter the regulation as someone suggested. That will just have the piano performing poorly. I would, however, check the regulation to be sure that it’s correct. Reshaping the hammers will probably help some. Be sure that you level strings and make sure that the hammers are properly mated. That’s important as you need the force of the blow distributed evenly between the strings in the unison. If you’ve had a lot of strings replaced then it is quite possible that the strings are not level. With badly shaped hammers string mating is impossible. Shape the hammers so that they are slightly more pointed rather than round. Is the piano used with orchestra and therefore needs to be somewhat brighter? For these types of hammers compass point voicing is the best style to use. The shoulders of the hammers can be impenetrable and since the hammers lack a lot of internal tension shoulder needling is less effective. That the shoulders lack flexibility can contribute to breakage, however. Compass point needling directly into and around the crown and then pounding the crown back down to settle the felt either with a small hammer or the back end of the voicing tool will create a tonal gradient that will sweeten up that piano quite a bit. Ultimately, though, if the hammers are worn down to where they are overcentering (and to where the wood core of the hammer is more in play) then you will have to replace them. David Love <http://www.davidlovepianos.com> www.davidlovepianos.com From: <mailto:pianotech-bounces at ptg.org> pianotech-bounces at ptg.org [ <mailto:pianotech-bounces at ptg.org?> mailto:pianotech-bounces at ptg.org] On Behalf Of Greg Hollister Sent: Thursday, June 21, 2012 8:46 PM To: <mailto:pianotech at ptg.org> pianotech at ptg.org Subject: [pianotech] broken strings I am servicing a Young Chang grand with a history of string breakage in the top 3 octaves of the piano. The hammers have never been shaped and are quite flat . I'm going to restore the hammer shape but I'm not sure that's the whole story. Obviously the pianist has been getting carried away with his right hand, but are the strings themselves ever to blame? I've told the music director that shaping and voicing the hammers may not be a cure all for the breakage but that it will be worth doing in any case. I guess I just looking for some feedback as to whether I'm taking this in the right direction. I appreciate any help. Greg Hollister RPT -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120622/f365360c/attachment.htm>
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