[pianotech] Oversized tuning pins

[David Love]

The proper sized bit will depend on the type of block and the pin you have
in mind use for replacement.  I’d have to go look in the shop but I think
when I’m pulling out a #2 pin from a Steinway block I drill it out with a J
bit (.277 if I recall correctly—the bit that Schaff calls it’s #3 bit) and
repin with a 3.5 tuning pin (lo torque if I can get it).  Diamond makes the
½ sizes and that’s what I tend to use.  The sizing I haven’t found to be
that big a problem with the Japanese pins but I like the color on the
Diamond pins better and when restringing without replacing the block (which
I do sometimes—as Israel mentioned sometimes cost matters to the customer) I
often get into either ½ sizes or lo-torque pins which restricts you to
Diamond anyway.  Were I restringing a Delignit block I might use a different
bit—or different sized pin. 

 

David Love

www.davidlovepianos.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of erwinspiano at aol.com
Sent: Sunday, November 29, 2009 7:43 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Oversized tuning pins

 

  Hi guys

   How would you all define reaming with "the proper sized bit"? as stated
below by Paul and others.

 Is the goal to jsut ream out the little shoulder at the bottom or the hole
or to ream the entire length for the new pin as David L. suggested.

  Dale



-----

Wouldn't you want to chase ("ream") the hole with a proper-sized bit, too?
Even if for no other reason than to make the hole the proper depth, i.e.
remove the "shelf" at the bottom??  IF that shelf is causing the problem,
pulling/replacing the pin isn't going to help, is it??

Paul  Bruesch
Stillwater, MN

On Sun, Nov 29, 2009 at 9:29 PM, <erwinspiano at aol.com> wrote:

 Rob

  it's a pain but it works and gets my vote. 

 Dale

 
As I'm still a newbie, I feel somewhat uncomfortable using a zapper.  I'm
also 
not keen on attempting to use David Doremus' great idea of loosening the 
tension, remove the becket, back the pins out with a drill, becket back in,
and 
re-set the pin.  I think it's a great idea, but I'm just not at that level
yet.
 
Thanks,
 
Rob McCall
McCall Piano Service, LLC
Murrieta, CA
 
rob at mccallpiano.com
www.mccallpiano.com <http://www.mccallpiano.com/> 
951-698-1875
 
 








 

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