[CAUT] moving capstans question

[Paul T Williams]

David,

I forgot to mention that there are 6 leads in the lowest bass keys and 5 
through the middle and 3-4   three forths of the rest of the way! 
Steinways attempt at compensating I suppose...  What I don't understand is 
why did they mess with a good thing?





"Porritt, David" <dporritt at mail.smu.edu> 
Sent by: caut-bounces at ptg.org
09/21/2007 10:03 AM
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Re: [CAUT] moving capstans question






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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