touchweight analysis

[jolly roger]

Hi David,
             The ratio seems very high. Closer to  .5 should be the norm.
How much dip/ blow distance, is needed to make this work?  Can give you
some clues.
Take a close look at the jack, knuckle clearance to gain some clues as to
weather the wrong knuckles have been in stalled.
#15 seems to have some friction issues, that some one has tried to bury
with weight off.  How bad are the adjacent notes?
Hows the damper timing?
Just a few things to mull over before chasing the capstans.
Regards roger.





At 11:59 PM 5/8/01 +0000, you wrote:
>Attached as an excel spreadsheet is some data on a Steinert 6' grand that 
>has some problems.  The hammers and shanks were recently replaced (not by 
>me) and the customer is not happy with the way it plays.  The action feels 
>very heavy.  I would appreciate any input on solving the problem.  The 
>customer likes the tone so I am reluctant to alter the strike weight except 
>perhaps at the upper end of the piano.  The key ratio is high and I am 
>considering moving the capstan.  The piano currently has a 17mm knuckle and 
>moving to 18mm is another possibility.  Any thoughts?
>
>David Love
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