[CAUT] thanks for the older S&S D dip info

[A440A at aol.com]

Richard writes:

<<  This action has the Renner turbo whippens and
current spec S&S shanks and flanges (17mm knuckles). I would like the 
hammershanks to be closer to the rest cushions, though. >>

 Turbo whippens and 17 mm should let you throw a very heavy hammer with 
moderate FW, or a medium hammer with very light FW.  With the 17 mm knuckles, you 
have less leverage, thus, for a given key dip, the hammers have to be closer to 
the string.
    If you can't keep the dip under .420" and still have the hammers no more 
than a shank's diameter from the cushions, it may be time to take a look at 
your capstan placement, or lifting the stack.  If you choose the latter, it 
would be a good idea to measure your capstan to "magic line" relationship, since 
you don't want it to begin on the line and have all of its motion occur above 
it. 
Regards, 



Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
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