Action ratio and knuckle distance

[David Love]

Actually, Stanwood’s equation of balance won’t tell you that.  The knuckle
hanging is not isolated in the formula.  You have to sample and do a weigh
off.  

 

David Love
davidlovepianos at comcast.net
www.davidlovepianos.com 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Farrell
Sent: Wednesday, July 04, 2007 11:47 AM
To: Pianotech List
Subject: Re: Action ratio and knuckle distance

 

Stanwood's equations of balance would tell you that. Are you familiar with
David Stanwood's work?

 

Terry Farrell

----- Original Message ----- 

From: vince mrykalo <mailto:madvinmryk at yahoo.com>  

To: pianotech at ptg.org 

Sent: Wednesday, July 04, 2007 2:03 PM

Subject: Action ratio and knuckle distance

 

How do you figure out the change that would occur in ACTION RATIO (AR) if
everything remains constant (strike weight, front weight,wippen balance
weight, and balance weight) except the knuckle is changed from 16.2 mm to
17mm, on paper, without actually trying it out on the action?

 

Vince Mrykalo RPT MPT

University of Utah

 

"Minél több a változás, annál nagyobb az állandoság"

 

The more I learn, the less I know.

 

 <http://www.mrykalopiano.com> www.mrykalopiano.com


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