[CAUT] pin-block plugging?

[Marcel Carey]

Hi Mark,

>From your description, I think you might be drilling too SMALL for the plug. There has to be a gap. You might just be pushing all the glue out of the hole and then when you repin the whole plug might turn. Of course after putting in bigger pins the plug eventually sticks there. I've seen it done at Steinway factory for a pin that was too loose to start with. If it has worked for them, it has to work for you too. Maybe you could experiment in an old piece of block until you find the right combination.

 

Marcel Carey

Sherbrooke 


 


Date: Thu, 30 Apr 2009 11:12:26 -0500
From: cramer at brandonu.ca
To: caut at ptg.org
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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