[CAUT] Steinway repetition center pin height

[A440A at aol.com]

Ric writes:

<< I have not thought of this has being related to relative positions of 

the balancier and hammershank centers tho. And I am still a bit foggy on 

how these can contribute to this condition. <<

    hmm,  I may have stepped on a semantics snake, here. I didn't mean to say 
that the relative positions of these two *contribute* to the problem, but 
rather,  illustrate the condition, ie, when the Knuckle is so low that the action 
cannot reset.  One major cause, I believe, is that in the capsized state, the 
hammershank is resting on the cushion so its weight isn't helping the key 
return. this leaves only the spring to overcome the FW and return the key to its 
at rest position, which it is not designed to do.  

>> On the surface of it... it would seem that as long 

as you regulate with in reasonable correspondence to specs... all should 

work reasonably well. >>

     I agree, however, the normal in a Steinway is that the specs are all 
over the place, (generally owing to excessively high or low  plate height).  This 
is why the brand allows the creative regulator to excell.  These actions 
respond to regulating according to principles rather that pre-set figures.  I have 
increased the height of the rest cushions to overcome the capsizing problem. 
It is not only much easier than raising the cleats, it doens't upset the 
hammerflange pin to string relationship, (though there is often much to be improved 
in this regard if the pinblock is not too thick.) 

Regards, 






Over recent years, Steinway has begun to increase their allowable  keydip to 
accomodate longer knuckle geometry, but that is another discussion.  



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