[pianotech] Belly talk

[Terry Farrell]

I agree with what you've said Ron. I was just trying to point out that if he was considering leveling the rim out, if the soundboard actually mates better with the crown, then there is actually reason to leave it in (reason beyond the fact that it won't matter one way or the other). And if it makes for a worse mating between the rim and board, then if it will ease his conscience, then level that rim off.

I have not ever reshaped a rim.

Terry Farrell

On Nov 30, 2012, at 2:46 PM, Ron Nossaman 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