Downbearing - Setting with Loose Board

[Nichols]

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Terry,
    Screws through the board around the rim, and big flathead screws into 
the original bolt holes to act as jacks. Just reach through the bolt holes 
with a narrower flathead screwdriver and raise or lower the plate as 
needed. The screw heads can be then indexed to the rim for dowel height 
placement. Saves a bit on "fine tuning" the plate later.

Fun-n-games,
Guy


At 11:05 AM 10/13/2004 -0400, you wrote:
>I'd like to start a discussion on setting downbearing as part of 
>rebuilding a piano - specifically, what methods of clamping the soundboard 
>to the rim are used by those who plane their bridges for appropriate 
>downbearing prior to gluing the soundboard to the rim.
>
>Obviously one needs to have both the soundboard and the plate in the case 
>to set downbearing (bridge height). The problem arises (at least for me) 
>in the fact that the plate is in the way of easily/directly clamping the 
>soundboard to the rim (such that bridge height relative to the plate will 
>be accurately represented). I have used little wooden wedges placed 
>between the plate bottom and the soundboard top in the past - and that 
>seems to work - but I wonder if there is not a more 
>efficient/easier/faster way to do this.
>
>How do others approach this task?
>
>Terry Farrell
>
><http://www.farrellpiano.com>www.farrellpiano.com

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