Bridge design

[Erwinspiano@AOL.COM]

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In a message dated 7/12/2002 8:53:49 PM Pacific Daylight Time, 
pianobuilders@olynet.com writes:


> Subj:Re: Bridge design 
> Date:7/12/2002 8:53:49 PM Pacific Daylight Time
> From:<A HREF="mailto:pianobuilders@olynet.com">pianobuilders@olynet.com</A>
> Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> Sent from the Internet 
> 
> 
> 
> 
> ----- Original Message -----
> From: "Greg Newell" <gnewell@ameritech.net>
> To: <pianotech@ptg.org>
> Sent: July 12, 2002 2:26 PM
> Subject: Re: Bridge design
> 
>               Greg

           The thin laminations are still quarter sawn material not flat sawn 
in case there be any confused other than me.
>>>>>>>>>>Dale>>>>>>>>>>.

> > Del,
> >     I take it then that your ribs are horizontally crowned into the shape
> you
> >     desire. Do you find the stability to be any different between
> horizontally vs.
> >     vertically laminated ribs? I think we talked about this once but I'd
> like to firm
> >     it up in my mind.
> >
> > Greg Newell
> >
> 
> What do you mean, "horizontally crowned?" The end result looks somewhat 
> like
> a normal, solid, machine-crowned rib. Yes, the laminations are horizontal 
> --
> assuming a horizontal soundboard as in a grand. And yes, the crown in 
> molded
> into the rib as we press -- the cauls are curved to the crown radius
> desired.
> 
> I've never tried vertically laminated ribs, though I know others have.
> 
> Del


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