[pianotech] Long european center pIns?

[Delwin D Fandrich]

I've not tried running the long pin through the hole in the flange fork. I don't
see how this could be done without enlarging this hole beyond usability. But I
await anxiously some instructions.
 
I've used the long pin to size new bushings by loading on as many bushed flanges
as will fit then dipping the bushed ends in a water/alcohol mix. Or simply
saturating the bushings using a syringe bottle. When dry the bushings are fairly
consistently sized. They are then removed and assembled per normal.
 
ddf


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From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of
jim ialeggio
Sent: April 02, 2009 7:54 AM
To: pianotech at ptg.org
Subject: [pianotech] Long european center pIns?


While we're on the subject of centers,

As I work on honing my centering processes, I've ordered some long center pins
from Jurgen, curious about the how they behave.

One part mystifies me. As I understand it, you point and rough up one end of the
pin to ream, draw the whole shebang (flange and birdseye) the length of the long
wire, burnishing in one direction (I guess generating some heat as well).  

How the devil do you draw the birdseye that distance without it being or
becoming too loose (not to mention reamed)...or if the birdseye's not too loose,
don't you do a number on your hands pulling(or rather hauling) it along that
distance?    

I have heard some reports of the initial (frustrating) drop in friction being
eliminated with this process. 

Any exerience on this? 

Jim
-- 
grandpianosolutions.com
Shirley, MA  (978) 425-9026


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