Lid construction

[gordon stelter]

In a piano lid, which is only supported at three
points, a high stiffness-to-weight ratio is needed to
prevent sagging. An edge-glued solid core may actually
be better for this than even modern laminates, but I
don't know. who does???
     Sounds like a good Journal article, to me! 

     Thump

--- Phillip Ford <fordpiano@earthlink.net> wrote:
> 
> I did make the lids myself.  I just didn't make the
> laminated panels from 
> which I made the lids.  That seems a little over the
> top to me (pun intended).
> 
> Phil Ford
> 
> At 06:50 PM 2/3/2004, you wrote:
> >FWIW, I've easily spent a day or two getting jerked
> around by several
> >woodworkers who said they could build a piano lid,
> and after they look at
> >the piano, I never hear from them again. So
> sometimes doing it yourself is
> >as fast or faster.
> >
> >Terry Farrell
> >
> >----- Original Message -----
> >From: "Phillip Ford" <fordpiano@earthlink.net>
> >To: <pianotech@ptg.org>
> >Sent: Tuesday, February 03, 2004 9:29 PM
> >Subject: Lid construction
> >
> >
> > >      I've made lids for a few pianos.  I thought
> I was being pretty
> >ambitious just making a lid at all.  But, wow,
> joining up your own core and
> >hammer veneering on the face sheets.  You guys
> leave me in the dust.
> > >      Have you guys ever heard of marine plywood?
>  It comes in 5' x 10'
> >sheets.  A variety of face sheets and core stocks. 
> Many types of mahogany
> >and select hardwood, many of which are probably as
> light as poplar.
> > >      Another option.  The last time I made a lid
> I went to a serious
> >cabinetmaking operation (a couple orders of
> magnitude more serious than my
> >shop) that did architectural millwork.  They took
> some sort of lumber core
> >plywood (something like baltic birch) and bonded on
> face sheets of my
> >choice.  They put it in a giant heated press and
> used heat setting glue to
> >bond on the face sheets.  5 minutes later I had a
> piece of custom lumber
> >core plywood with perfectly wrinkle free hardwood
> faces.  I don't remember
> >how much it cost.  I'm sure it wasn't cheap, but it
> was a lot cheaper than a
> >day or two of my time.
> > >
> > > Phil Ford
> > > _______________________________________________
> > > pianotech list info:
> https://www.moypiano.com/resources/#archives
> > >
> >
> >
> >_______________________________________________
> >pianotech list info:
> https://www.moypiano.com/resources/#archives
> 
> 
> _______________________________________________
> pianotech list info:
https://www.moypiano.com/resources/#archives


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