[pianotech] Measuring Crown Radius

[Ron Nossaman]

On 7/14/2011 4:07 PM, John Delacour wrote:


> Before I go on, is that roughly what takes place? Please tell me if I've
> got things wrong.
>
> JD

In CC crowning, the panel is dried down, then glued to flat ribs. Panel 
expansion as it takes on moisture then bends the ribs into a crown. The 
piano case isn't involved in the process, and the ribs needn't 
necessarily be dried down.

Ron N