Bridge Pin/Epoxy Question

[Tony Caught]

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----- Original Message -----=20
From: Tony Court <Tony_The_Tuner@nationwideisp.net>
To: <pianotech@ptg.org>
Sent: Monday, June 12, 2000 4:54 AM
Subject: Re: Bridge Pin/Epoxy Question


>          I did do some experiments of my own though, and glued two =
pieces of
> maple together......... on application of tensile force, the glue =
joint did
> not break, but the wood separated leaving timber on both sides of the =
glue.
> I also drilled a piece of maple to be a couple of "thou" loose on a =
tuning
> pin, filled with CA and left it over night,(this is the time it takes =
to
> achieve full strength).The following morning, the pin was at first =
stiff,
> but with a little more "shear" force, the CA broke down.=20

This convinced me that it was not the stuff for loose tuning pins.

Hi Tony,

This has always been a problem with me too.  but to me, it means that it =
is the right stuff for loose tuning pins.  My fear has alway been that =
you are going to lock the tuning pins in and not be able to turn them.
 The way I understand that this works is that it gets into the fibres of =
the wood  and thickens them up making the tuning plank more stable. Also =
it forms around the tuning pin and thickens it up as well thus making it =
tight in the hole.
In your test, did the pin become tighter than before applying CA ?.

Doesn't Ron N write nicely, wish I could have said that.

Tony Caught ICPTG
Australia
caute@optusnet.com.au
=20

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