Laminated ribs

[David Love]

That was my wood technology question for the day:  Does a vertically
laminated rib perform the same as a horizontally laminated rib of equal
overall dimension?  

David Love
davidlovepianos@earthlink.net


> [Original Message]
> From: CalinTantareanu <calin.tantareanu@mae.ro>
> To: Pianotech <pianotech@ptg.org>
> Date: 8/19/2003 7:50:03 AM
> Subject: Re: Laminated ribs
>
> Seems to me that a vertically laminated rib would have no deformation
> problems, but you would have to machine its crown, since you can't bend it
> in a caul.
> As for strength, I don't really know. If the glue is strong, a
horizontally
> laminated one should be as strong as a vertical laminated one.
>
>  Calin Tantareanu
>
> > > If I read correctly, the laminations are set up in the horizontal
plane.
> > > Why would you not set up the laminations in the vertical plane.  It
> would
> > > seem that this would increase the stiffness of the rib and thereby
allow
> > > you to use a smaller rib, i.e., less mass.  Would that not be better.
> > >
> > > David Love
> > > davidlovepianos@earthlink.net
>
>
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