Jurgen, I don't know about consensus, but I personally would not change the angle. I purchased an older Steinway Upright, #61799, 1887-89 years ago that had an extreme hammer rake angle as you mention the Heintzman has. The Steinway also had a full sustenuto. It rake definitely looked out of place with the majority of vertical pianos I have serviced, but this Steinway's sound and performance were unaffected. It played and sounded great for its age with only some reconditioning and tuning. It eventually became part of the Havana Piana program earlier this decade. Keith 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090820/7d1ec7bb/attachment.htm>
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