[pianotech] high leverage action

Gene Nelson nelsong at intune88.com
Tue Mar 17 14:37:36 PDT 2009


Re: [pianotech] high leverage actionJohn,


  >With the whippen rail aligned so that the whippen flange centers
  >are not on a parallel line to the capstans ?


  >Whenever I encounter this misalignment (which is quite often),
  >I relocate the stack such that the whippen ratio is the same
  >across the compass.

  *****When you do this do you end up with a strike line that changes by the amount
  that you move the stack? Forced to change the distance of hamer moulding center 
  to hammer flange center in order to maintain the original strike line?
  This could give a leverage advantage toward the bass section if I move the stack
  accordingly.
  As any of these sort of changes have consequences and tradeoffs - it sounds like it is better to have
  the even whippen weight ratio?

  Thanks again for your patience and assistance.
  Gene





















-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090317/1da832d1/attachment.html>


More information about the pianotech mailing list

This PTG archive page provided courtesy of Moy Piano Service, LLC