[CAUT] pin-block plugging?

[wimblees at aol.com]

Mark

Instead of plugging, have you considered impact resin, or some other epoxy type of treatment? I've done about a dozen repairs on blocks, and even one whole pin block. The only down side is the feel of the pin. Although it holds, and the torque is in the 60 - 80 in pound range. it feels different than wood. But it does the job. 


Willem (Wim) Blees, RPT
Piano Tuner/Technician
Mililani, Oahu, HI
808-349-2943
Author of: 
The Business of Piano Tuning
available from Potter Press
www.pianotuning.com


-----Original Message-----
From: Mark Cramer <cramer at brandonu.ca>
To: CAUT <caut at ptg.org>
Sent: Thu, 30 Apr 2009 6:12 am
Subject: [CAUT] pin-block plugging?




Now and then I run into a situation where plugging a tuning-pin hole and re-drilling seems like the only option. IOW, neither an over-sized pin, CA glue nor an emery paper shim will work.

 

I’ve tackled this fairly carefully, even using a small portable drill press clamped to the keybed to get a precise hole, but I never seem to get a good result:

 

I’ve used plugs from both economy blocks and Bolduc blocks. The plugs are a tight fit to the wood, and really have to be driven home. I’ve used carpenter’s glue.

 

Nonetheless, the results always seem to end up the same. I bore for a 1/0 pin, then end up installing a 2/0, then up-sizing to a 3/0, and often a 4/0!?

 

Anyone have success with this? 

 

Over the years some of you must’ve plugged and re-
bored entire pin-blocks. What’s your secret?

 

Thanks,

Mark Cramer, RPT

Brandon University

 

 

 

 


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