Agraffe reaming

[Marcel Carey]

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Paul,

Nice pictures. What method do you use for the high speed hole polishing?
Could you please describe the tools and method?

Thanks,

Marcel Carey
  -----Original Message-----
  From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
Behalf Of Yardarm103669107@aol.com
  Sent: 6 avril, 2003 01:11
  To: pianotech@ptg.org
  Subject: Re: Agraffe reaming


  In a message dated 4/5/2003 8:12:49 PM Central Standard Time,
RNossaman@cox.net writes:



    Doesn't sound to me like much of a time saving
    convenience over just replacing them.



  Ron:

  At http://motspheres.com/blank3.html you'll find a partial set of pictures
I've taken over the last year or so which lead me to believe that 1) reaming
just duplicates the original bad geometry of the termination, and 2)
replacing agraffes with new ones still requires a great deal of preparation,
the same as with old ones as a matter of fact. This set of pictures will be
augmented in the future with some others illustrating where certain noises
come from in that termination. The whole point is that each agraffe, new or
old, needs to be consistently treated to polish the termination into a true
curved shape, although it is impossible to duplicate a fine capo shape with
the offset towards the counterbearing segment. Some agraffe sets in better
made pianos are in fact canted toward the singing length to create that
offset.

  Paul Revenko-Jones

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