yes, and particularly if these hammers weren't prepped well as you say, did they do ANY tapering? A glance at the hammers will give you a rough idea how much material has been removed. If the hammers weren't tapered, coved or tailed well, there may be a substantial amount of weight to be removed. William R. Monroe On Fri, Sep 9, 2011 at 12:27 AM, Overs Pianos <sec at overspianos.com.au>wrote: > Barbara wrote; > > > Taking felt off of bulbous hammers at the staple and below can make a big >> difference. Actually, it seems like felt removal makes more of a difference >> than I ever think it should. >> > > Indeed, with a nominal hammer/key ratio of 5:1, removing just 0.6 grams at > the hammer head will lighten the DW by 3 grams. This is also why I believe > it is important, for performance pianos, to ensure that the hammer weights > conform to a curve. Any variations in hammer weight from the curve will > result in a five fold deviation at the key front. > > Ron O. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110909/8ef37677/attachment.htm>
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