[CAUT] moving capstans question

[Porritt, David]

Paul:

 

I'm certainly not an action guru but last year I did move a capstan line
6 - 7 mm forward on a Baldwin SF-10.  It made a very nice difference.
The DW had been in the high 60s and it came down to the low 50s and felt
much better.  Fortunately with that move the capstan was still in a good
area of the wippen heel so I didn't have to cut the heels off and move
them.

 

dave

 

David M. Porritt, RPT

dporritt at smu.edu

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Paul T Williams
Sent: Friday, September 21, 2007 9:34 AM
To: caut at ptg.org
Subject: [CAUT] moving capstans question

 


Hi List! 

Happy Friday! 

I am working on a 70's Sty B with a horrible action geometry problem.
All the students and the professor hate playing it and I don't blame
them! The line from key balance hole to wip has the capstan way too low
making the DW close to 70g throughout.  It has a renner action and
hammers.  the wips and capstans are such that I could relocate the
capstans back by about 3-4mm.  Would that make a big enough difference
in the DW? It won't affect the line.  I looked at raising the stack, but
there isn't enough room to raise it more than 1-2mm.  Should I try both?


Also, is the measurement in Steinways made from center of balance rail
hole on the top of the key, or from the back of the key?  This is a new
endeavor for me and I don't want to make things worse. 

Still green in Lincoln, 

Paul

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