[pianotech] Best way to change touch on Yamaha Grand

[Joseph Alkana]

Of course. My question is can it be expressed as a percentage of change as
other benefits of modification are? I.e., you change the action ratio and
you change the work output by a calculated percentage. Could one ultimately
say, then, if you do "x" to this action in terms of weight (mass) reduction
you can always expect x% reduction in sliding friction?

Joseph Alkana

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Jon Page
Sent: Wednesday, January 06, 2010 3:37 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Best way to change touch on Yamaha Grand

 

 the more weight (mass) is eliminated the more the parts tend to move

(more easily?) as friction is reduced.

 

If you remove mass from the hammer there will be less pressure exerted

on the knuckle and capstan cushion thus dropping friction (1 or 2 grams

at most) proportional to the amount of mass removed.

-- 


Regards,

Jon Page

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