[pianotech] More agraffes...kind'a

Jim Ialeggio jim at grandpianosolutions.com
Mon Aug 20 14:03:25 MDT 2012


In the past, when refinishing a plate, I've had trouble with finish 
build-up in the agraffe couterbore bottom and sides. The buildup then 
was pulled along as the agraffe was tightened, sometime bringing surface 
finish with it, restulting in chips and other nasties.

I've tried placing finish washers in the counterbore, held in by the 
weight of a screw, but I'm not happy with this, as it bonds the finish 
washer to the counterbore sides, creating chipping problems of its own, 
though less than no finish washer.

Ideally, I'd cut a small bevel on the counterbore sides, and then not 
worry about masking the countebores, but in playing with this, I don't 
have a countersink remotely shallow enough to do the trick in such a 
shallow counterbore.

Any thoughts on other ways to approach this easily?

Jim Ialeggio

-- 
Jim Ialeggio	
jim at grandpianosolutions.com
978 425-9026
Shirley Center, MA



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