The hammer isn't going to be thrown back like grand hammer is it? I always thought they were trying to hit the strike point from a too overlong shank... David Ilvedson, RPT Pacifica, CA 94044 ----- Original message ---------------------------------------- From: "David Love" <davidlovepianos at comcast.net> To: pianotech at ptg.org Received: 8/20/2009 8:48:18 PM Subject: Re: [pianotech] Hammer rake angle >Don't they? Doesn't the rake angle exist so that the hammers will strike >the strings at 90 degrees? > >David Love >www.davidlovepianos.com > > >On Aug 20, 2009, at 8:35 PM, Jurgen Goering wrote: >What is the consensus on a proper rake angle for boring and hanging upright >hammers? >I am working on a ca 1910 54" tall Heintzman piano, it is a really fine >instrument, complete with a full sostenuto. The original hammer rake angle >is a full five degrees throughout. It looks quite extreme, yet I am >reluctant to change it without a good reason on the new hammers I will hang. >Is there a good reason to change it to a more "normal" 2 degrees? >Why is it that most upright hammers do not strike the strings at 90 degrees >like most grands? >Jurgen Goering >
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