---------------------- multipart/alternative attachment In a message dated 7/11/2002 4:31:37 AM Pacific Daylight Time, mfarrel2@tampabay.rr.com writes: Dittos Terry. I Know of no on using less crown in the treble. At least many are using 60ft. thru out and many of us increasing radius into the treble. I think the confusion is that a 60 ft. curve on a 40 inch rib appears to have proportionally more crown (7-8 mm) than a 15 inch rib with a 25 ft. curve ( 1.5mm) when observed visually. >>>>>Dale Erwin>>>>>>>> > > Like rib radius it seems to be that less crown is > > desired in the treble and more in the bass. > > Depends on how you are measuring crown. If you measure by how far the > soundboard bows from a planar surface, you are looking for more crown in > the middle of the board. From a manufacturing point of view, crown is more > commonly measured by the radius of curvature one tries to build into the > finished product. In that case many board designers are generally putting > more crown in the treble and less in the bass. Some put the same crown > across the whole board. > > ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/0f/e7/ef/76/attachment.htm ---------------------- multipart/alternative attachment--
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