Tuning pin drilling?

[David Love]

Not had that experience and much the opposite with Diamond, though I still
use them now and again and do use the Lo-Torque pins on occasion.  I don't
much mic anything anymore.  I use multilaminate blocks, double drill with a
G bit for the final pass, Denro pins with PDF and the torque comes out very
uniform.  Haven't had any trouble with undersized pins.  

 

David Love
davidlovepianos at comcast.net
www.davidlovepianos.com 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Erwinspiano at aol.com
Sent: Thursday, September 06, 2007 6:36 AM
To: pianotech at ptg.org
Subject: Re: Tuning pin drilling?

 

  Really? WOW Dave, I'll let Trix give an earful about this sometime. Dont'
get her started!!

 

   We've found the opposite. The Denro pins are undersized of a true
advertised sizes of .282.--.286 etc.  Usually 1 to 3 thous. under. ie..the
denros listed as 286s are usually predominantly .284 with some fatter &
thinner. 

  We have often mic,d entire sets & put the smaller pins in the treble &
thicker in bass. Diamond seems to run closer to  the correct no.s but still
with variance.  This is only more critical I think when repinning an
exsiting block.

  Oh yes.  As to the mystery ..It's wood.  grin.

  We just got a few sets of the Beine pins from Jurgen.  Jury's still out.
Nice looking though.

  Dale

I've actually found the Denro pins to be more uniform than the Diamond pins.
My guess about the mystery is that it has something to with variation in
depth that the pins are driven.  

David Love
davidlovepianos at comcast.net 
www.davidlovepianos.com

 





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