I'm making a book case for my daughter and she wants a curved top. I have
made a form over which to do the bending but I am having a problem with the
1/4" plywood splitting. I can not use 3/4" plywood and make cuts in one side
as both the top and bottom with be visible so I decided to laminate 3 pieces
of 1/4" plywood. I plan to use polyurethane glue to do the lamination but I
need to conquer this splitting problem. I would appreciate any help you can
I tried cutting the interior side of one of the pieces of plywood with a
utility knife. When I tried to bend the plywood it just cracked at one of
the cuts. Maybe I will kerf it to see if that works any better.
Maybe I don't _need_ to do it but I have been advised by others to use it to
minimize the tendency of the wood to lose some of the bend so I am going in
that direction unless I hear some reason to go another way.
On Wed, 25 Oct 2006 09:26:46 -0400, Dick Snyder wrote:
Watch the grain direction of the top sheet. You want to orient the grain so
it is perpendicular to the direction of the bend.
Also, try bending plywood for at least the middle of the three layers. You may
not like it for exposed surfaces. Doug suggested using three layers of this,
and veneer for the exposed surfaces, which IMO is the way to go if you have a
way to apply the veneer.
Dick Snyder wrote:
I can not use 3/4" plywood and make cuts in one side
> as both the top and bottom with be visible so I decided to laminate
> of 1/4" plywood. I plan to use polyurethane glue to do the
lamination but I
> need to conquer this splitting problem.
Bending plywood and epoxy.
Poly isn't going to cut it.
Another way to do this is to buy the flexible mdf
and cover that with birch veneer.
That, of course will require a veneering vacum
bag and pump.....
I would stick with the flexible birch from Boulter.
Glad I could help you...
Dick Snyder wrote:
I visited Boulter today to buy bending birch as they are near the daughter
for whom I am making the book case. I note that the bend puts the finish
side on the inside of the curve. I need to have a finish side on both sides
of the curved top of the bookcase. Can I bend the bending birch the other
way without it cracking? I can of course just try it out but I'd like to get
some advance knowledge before I waste some material.
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