[pianotech] Rim joint repair

[Al Guecia/AlliedPianoCraft]

Mike,

In the past, I have used dowels to make this repair. I squeeze glue into the 
crack and than clamp to close any separation that might exist. When setting 
up your clamps leave at lease 3 positions open where you will drill and 
insert dowels. Once that dries, you can add additional dowel if you feel 
it's necessary. I then come in from the other corner and dowel in between 
the other dowels. If you're not refinishing you'll then need to repair the 
finish. I've only done two, and they both held up for as long as I was 
servicing the pianos.

Al -
High Point, NC

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From: "Mike Spalding" <mike.spalding1 at verizon.net>
Sent: Sunday, July 11, 2010 6:51 PM
To: "Pianotech" <pianotech at ptg.org>
Subject: [pianotech] Rim joint repair

> List,
>
> Look what just came into my shop for rebuilding:  A 1925 Schiedmayer &
> Soehne with square corner joints in the rim.  Both joints are less than
> totally stable, as can be seen in the photo of cracked veneer.  It
> doesn't seem to be in any danger of coming apart, but it obviously moves
> enough to make an ugly crack.  Any suggestions for stabilizing these
> joints / cracks so that they don't telegraph through the new finish?
>
> thanks
>