---------------------- multipart/alternative attachment In a message dated 1/21/2002 10:40:39 AM Pacific Standard Time,=20 pianobuilders@olynet.com writes: > Subj:Baldwin Accu-Just Hitch Pins--General Information=20 > Date:1/21/2002 10:40:39 AM Pacific Standard Time > From:<A HREF=3D"mailto:pianobuilders@olynet.com">pianobuilders@olynet.com<= /A> > Reply-to:<A HREF=3D"mailto:pianotech@ptg.org">pianotech@ptg.org</A> > To:<A HREF=3D"mailto:pianotech@ptg.org">pianotech@ptg.org</A> > Sent from the Internet=20 >=20 >=20 >=20 > Dale, Carl, et al, > . >=20 > Mostly, how much loading any specific soundboard must have is a function o= f=20 > how massive and how stiff the soundboard assembly is. This is not a=20 > universal constant. Dale=E2=80=99s string deflection numbers would not wor= k( at?)(=20 > did you leave the at out?) all for one of our boards. As to whether they=20 > would work for one of Baldwin=E2=80=99s current boards=E2=80=94I cant say.= With the=20 > Accu-Just system Baldwin has used a fairly light crown radius=E2=80=94 >=20 Del--Just so it doesn't appear that your dismissing my downbearing=20 deflection no. derived from the experience myself and others out of hand, le= t=20 me Re-state that these no.s are real do work well in NON--REDESIGNED=20 soundboards, which I must point out most of us are doing. I think I was=20 fairly specific as to the type of replacement board application that these=20 numbers do commonly work in.=20 These values of downbearing work well for me on 60ft. rib crowned=20 boards(treble radius are tighter) but with some modification of the system o= f=20 prestressing, I suggest the procedure could be applied to many if not most=20 soundboard systems that exhibit some stiffness as they're being test loaded.= =20 Obviously totally flacid or under crowned systems woulf require a different=20 approach. Perhaps you'd like to share what values you consider workable in a=20 non-redesigned rib crowned soundboard system ? Or in your design system for=20 that matter. I was trying to give some others who asked what is rather typical ways of=20 setting bearing and some numbers for downbearing that many people I know=20 consider usual. Dale Erwin >=20 >=20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/8f/b3/9c/ff/attachment.htm ---------------------- multipart/alternative attachment--
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