[pianotech] Beckets

Jude Reveley (Absolute Piano) juderev at verizon.net
Thu Oct 8 04:37:06 MDT 2009


    Fair enough, EXCEPT there is the occasional situation in the low tenor 
and bass where the agraffe to tuning pin string length is so short that you 
either
need an especially high front bearing (making it even more difficult to 
thread the wire up and over), more than less coils (my late entrance to this 
thread) a shorter pin height than the neighbors, or a negative pin angle to 
allow the last winding to be tight up against the rest.

    As for pin depth, it is my experience that the deeper the pin the 
greater the torque.  I would be interested to hear others' experience with 
this. Perhaps my perception was simply comparing "flag pole range" to 
"non-flag pole range."

    Jude

    ----- Original Message ----- 
    From: "Ron Nossaman" <rnossaman at cox.net>
    To: <pianotech at ptg.org>
    Sent: Wednesday, October 07, 2009 8:39 AM
    Subject: Re: [pianotech] Beckets
    > Jude Reveley (Absolute Piano) wrote:

    >> Who said anything about pin angle relating to tight coils? I think 
you misread my post.
    >
    > A choice of pin length, pinblock composition, drilling fit, and 
driving
    > depth would still let you put the takeoff point of the coil at any 
height
    > you like above the plate regardless of the number of turns on the 
coil.
    > And the string draft angle does relate to pin angle, or should. The 
angle
    > relationship of the pin to the string, determined in part by the angle 
of
    > the pin in the block, *is* the part of this that affects the process 
of
    > getting tight coils.
    >
    > Why would having to drive the pin deeper be a problem? I covered that 
with
    > "choice of pin length", "pinblock composition", and "drilling fit".
    >
    > Ron N 



More information about the pianotech mailing list

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