[pianotech] Baldwin grand repetition spings

[Overs Pianos]

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.
-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
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Web http://overspianos.com.au
mailto:ron at overspianos.com.au
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