Crowning methods, was soundboards.

[Delwin D Fandrich]

| -----Original Message-----
| From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
| Behalf Of Terry
| Sent: January 21, 2005 3:43 AM
| To: Pianotech
| Subject: Re: Crowning methods, was soundboards.
|
| ....The other
| end of the spectrum would be no panel drying at all, and ribs cut/formed to
| the desired radius. I am not aware of anyone that is at that end of the
| spectrum.

Walter.


|
| I believe most soundboard manufacturers build hybrid soundboards - that is
| the ribs will have some radius cut/formed into them (often the 60-foot
| radius one hears of so often) and the panel will receive a fair bit of
| drying prior to ribbing. Steinway even modifies the 100% compression
| crowning process by drying the panel, using flat ribs, but gluing them to
| the panel in radiused cauls.

The result of this is still a pure compression-crowned soundboard. (Think about
it....)

Del