Adjusting touch weight

[David Renaud]

How much aftertouch does it have exactly?
How is the friction in the flanges exactly?
 
If the friction is good, even, correct.
If the hammer line is even, blow correct, dip
accurate, 
damper lift correct, drop accurate, etc. etc. 
there are a couple options. 
 
BUT: make sure all regulation elements are very good
first!!!.
It is amazing the difference small refinements make in
touch perception.
 
If there is about 50thou of aftertoucf, reducing it to
about 30 -35 thou can make an action appear 
noticeably heavier. This can be accomplished by adding
a tinny bit of blow or shaving a hair off the dip, or 
negotiating between these two.
 
Once I added tubing 1cm long, slit open so I could
wrap them
around shanks easily. They weighed 1gram each and
added
approx 5grams to the touch. (on an old C7) This was
temporary, 
and the light hammers are now(3 years later) being
replaced. 
Interesting, it worked quite well for touch and tone.
What a 
difference a gram has on tone. Do not recommend this
for a new C7.
 
 The rubber tubing is an experiment I do recommend for
everyone
to observe weight-tone relationship on a well
regulated piano/note.
It is unobtrusive, installed in seconds, and removed
in seconds. 
 
                                                      
    Cheers
                                                      
     Dave Renaud
 
 
 
 
 
 
 
 
 
 
----- Original Message ----- 
From: Owen Greyling 
To: 'Pianotech List' 
Sent: Thursday, May 17, 2007 8:54 PM
Subject: RE: Adjusting touch weight


I’d do a little investigating
.not the piano, the
client! Might save you the grief of having to explain
to the factory rep what you did to “fix” a new C7.

Misdiagnosis of piano problems can be exasperating,
especially after “repairs” have been made
..

 

Owen 


--------------------------------------------------------------------------------

From: pianotech-bounces at ptg.org
[mailto:pianotech-bounces at ptg.org] On Behalf Of Avery
Sent: Thursday, May 17, 2007 6:35 PM
To: Pianotech List
Subject: Re: Adjusting touch weight

 

When all else fails, you could also make the dampers
lift sooner! 

Avery 

At 10:56 AM 5/17/2007, you wrote:



I have a church client with a new Yamaha C7.  She
feels the action is "too Light".  What can be done to
make the action feel heavier ?




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