[pianotech] Belly talk

[David Love]

Maybe Jim should clarify which crown he is referring to. I didn't think he was referring to removing crown in the rim such that the bass end would not have to be forced down once the treble end was clamped. 

David Love
www.davidlovepianos.com
415.407.8320


Ron Nossaman <rnossaman at cox.net> wrote:

>On 11/30/2012 1:11 PM, Terry Farrell wrote:
>
>> Maybe a good way to decide would be to build your soundboard and lay
>> it in there on the rim - see how it mates to the rim. If the rim
>> crown is pushing up the ends and you have to sit on the darn thing to
>> bring it down to the rim, you might want to consider removing the
>> crown. If, on the other hand, the original crown on the rim enhances
>> good mating of the soundboard to the rim, for sure leave it.
>
>Maybe I've lived a sheltered life, but I've never put in a board that 
>didn't take a WHOLE LOT of forcing down to the rim in the base side tail 
>and treble front. I've always found it entertaining and sort of sad when 
>people (not you) go to great verbal lengths to justify how some piddly 
>little contour modification to the rim would insure a stress free panel 
>installation, usually with a CC soundboard with a panel that is already 
>half crushed just by putting it together.
>
>As to the "most important crown in the soundboard", it's physically 
>impossible to avoid crown along the long bridge if there is crown along 
>the ribs, as the perimeter is pressed and glued to a plane or nearly 
>plane rim.
>
>Ron N
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