Soundboard Installation - Clamping

[gordon stelter]

I have never put in a board, but, for the cutoff bar,
how about a  plank clamped across the top of the
piano, with some sort of spreaders beneath: Little
machinists's jacks, a pinblock support jack with
shorter bolts, tiny turnbuckles with hex bolts in the
ends... OR, threaded inserts driven into holes drilled
in the plank above the clamping area, with bolts
through them pushing on a caul.

     Thump

--- Erwinspiano@aol.com wrote:

>  
> Terry
>  I use a maple piece/shelf held under the belly
> (temporarily ) rail  cutout 
> with wedges . Clamp with C clamps.
>   Dale
> 
> To those in the habit of gluing soundboards to 
> piano rims......
>  
> In the high treble along the belly rail, the  belly
> rail is commonly not 
> vertical, but rather angled a bit towards the 
> pinblock at the upper edge where 
> the soundboard to rim joint is. This presents  a bit
> of a clamping challenge. I 
> have used go-bars in these kinds of areas in  the
> past, but would greatly 
> prefer to use a clamp. Also, when gluing the board 
> to a cut-off bar in the area 
> where the cut-off overlaps the horizontal  portion
> of the belly rail (and this 
> can be quite wide on well-built pianos)  presents an
> area where a traditional 
> clamp cannot be used. Again, one can use  the
> go-bar, but I wonder if some of 
> the wonderfully invent-ful participants of  this
> list haven't come up with 
> some kind of ingenious/superior method of  clamping
> in these areas.
>  
> Ideas?
>  
> Terry Farrell
>  
> _www.farrellpiano.com_
> (http://www.farrellpiano.com/) 
> 
> 
> 
>  
> 



		
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