popsicle stick engineering

[David Love]

Probably the wrong parts.  There is abundant info in the archives on just
such situations.  Basically, you will need a 17 mm knuckle, possibly a
capstan move and probably a lighter hammer to get the leading down to
something acceptable.  

 

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 Clark Sprague
Sent: Sunday, October 29, 2006 6:19 AM
To: Pianotech List
Subject: Re: popsicle stick engineering

 

Hi, All!  I have been dealing with a S&S B that I found with up to 9 leads
in some of the low tenor keys.  All the parts had been replaced with Renner
to get rid of the Teflon flanges, but it was heavy, sluggish, and just a
chore to play for long.  I am not all that familiar with the Stanwood
protocols, but as time goes on, the concept gets more and more attractive.
What I found, was that I had to shorten the dip, lengthen the blow, to get
it less laborious to play.  So, what I suspect , is that the capstan
placement is incorrect for the parts used, or was incorrect from the start?
They also had the damper timing late to try to make it feel lighter, so late
that the hammer almost hit the strings before it lifted.

    Ric, your comments on the more creative combinations of blow, dip, etc
hit a chord with me on this beast.

    There were too many leads in from the factory, and you could tell be
looking that some more were added with the new parts, as they did not look
factory at all,  so the problems just got worse, evidently with the parts
replacement.

Clark A. Sprague, RPT

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

From: RicB <mailto:ricb at pianostemmer.no>  

To: pianotech at ptg.org 

Sent: Sunday, October 29, 2006 6:10 AM

Subject: popsicle stick engineering

 

Hi Kent, others.

I'm glad you put this up Jon. I remember 6 years ago when you brought this
idea to my attention off list. I still have all that exchange. Good stuff.
The idea of thinking about the whippen needing a <<required travel
distance>> struck home a note back then. 

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