[pianotech] Locating & Re-Locating Plate

Ron Nossaman rnossaman at cox.net
Sat Jul 10 21:30:42 MDT 2010


Mike Spalding wrote:
> For aligning plate to case, here's what I do:  Make two "headless 
> screws" by sawing the heads off of two #18 x 3" wood screws, and slot 
> the ends with hacksaw or dremel.  Before removing the plate, drill two 
> 1/4" holes down through the plate and into the rim, near each end of the 
> long bridge.  (Caution - locate the holes slightly off from the midpoint 
> between plate bolts to avoid drilling into the button screws on M&H 
> grands)  Re-drill the plate only to 5/16 diameter, and screw the 
> headless screws into the rim until the the top of the screw is flush 
> with the plate.  

I use a couple of tuning pins, similarly positioned, driven 
upside down into the rim.
Ron N


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