[CAUT] Capstan Repositioning

Ken Zahringer ZahringerK at missouri.edu
Tue May 2 08:00:36 MDT 2006


We have a Steinway M (c. 1960) here who¹s capstan line is askew
significantly.  The capstan on A0 is about 1/4² closer to the balance pin
than the capstan on C8.  The cap contacts the front of the wippen cushion on
A0, and the back on C8.  Dip at A0 is .420, dip at C8 is .390.  I am
planning on straightening this out this summer.

My tentative plan right now is to remove a piece of wood from the keystick,
about 1/2 x 1/2 inch, and glue in an insert for the new hole.  I was
thinking of using poplar for the insert.  Since I¹m moving the hole such a
short distance (max 1/8²), I wouldn¹t think simply plugging with a dowel and
redrilling would work very well.  Any comments, criticisms, or dire
warnings?

Thanks,
Ken Z.
-- 
Ken Zahringer, RPT
University of Missouri
School of Music

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