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Mustardbuilder wrote:
> "Morgans" <jsmorgan@charterJUNK.net> wrote in news:cZIrh.1221$cZ1.187
> @newsfe04.lga:
>
> >
> > "Mustardbuilder" <A@A.A> wrote
> >>
> >> Well, what I was actually asking is if I could laminate the two
> pieces
> >> to take the curve in the wing. I realise this is basic stuff for a
> lot
> >> of you guyus, but I have never bent realatively thick ply before and I
> >> do not want to make a mess out of the rest of the wing trying..
> >
> > Reread what I said. That is how to laminate two, without a mold. One
> > should work, though, no problem>
> >
>
> Dunno, that's what I was asking. I have laminated two pieces of ply
> together before, just was wondering if it was practical or advisable to
> do it curved.
Laminating a curved piece is, if anything, better than laminating
a flat piece, and also better than using a single piece.
If you laminate it on the curve before the glue sets the
laminated plywood will be pre-stressed to the desired curve.
You do not need a mold, you can attach one piece, let it set,
then glue the second piece over it.
Regarding the veneers, the laminated piece should be symetrical.
If the pieces have an A and a B face, they should be laminated
ABBA or BAAB, not ABAB or BABA. The grain on the new front
and back face should be parallel. I would put the A faces out, ABBA.
But I think aircraft and marine plywood is supposed to have A-grade
veneers front and back, right?
--
FF
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Re: Wing walk ply question.
