Dd

"Dwight"

24/07/2006 7:15 AM

Bending wide wood

I'm making a ski and it will be 8" wide. The width will be 4 - 2"
strips glued together. Should I glue it together first and then bend or
bend each strip and then glue it together? I'm guessing I should bend
each strip first, since the steaming process would weaken the glue
joints.


Thanks
Dwight


This topic has 5 replies

Td

"Teamcasa"

in reply to "Dwight" on 24/07/2006 7:15 AM

24/07/2006 8:41 AM


"Dwight" <[email protected]> wrote in message
news:[email protected]...
> I'm making a ski and it will be 8" wide. The width will be 4 - 2"
> strips glued together. Should I glue it together first and then bend or
> bend each strip and then glue it together? I'm guessing I should bend
> each strip first, since the steaming process would weaken the glue
> joints.
>
>
> Thanks
> Dwight
>
>
Bending wood is not all that tricky. However, to get a reasonably accurate
bend, you will need a form. Both the negative and positive form to sandwich
the wood into.
Depending on the complexity and radius of the form, the wood strips need to
be thin (1/16" +-). After you have all of the strips ready, you need to
glue and then clamp this wood sandwich into the form and let set. Do a
Google search on "bent wood laminations" and you will see what I mean.

http://www.teamcasa.org/workshop/bathvanitydetail.htm
Above is a link to my last project that employed bent wood lamination.

Dave

b

in reply to "Dwight" on 24/07/2006 7:15 AM

24/07/2006 11:05 AM


Dwight wrote:
> I'm making a ski and it will be 8" wide. The width will be 4 - 2"
> strips glued together. Should I glue it together first and then bend or
> bend each strip and then glue it together? I'm guessing I should bend
> each strip first, since the steaming process would weaken the glue
> joints.
>
>
> Thanks
> Dwight

Building skis of edge-joined strips seems to me an invitation to major
injury _real_soon_.

I'd suggest that you think, instead, in terms of laminations.

J

Dd

"Dwight"

in reply to "Dwight" on 24/07/2006 7:15 AM

24/07/2006 12:11 PM

Possibly, but that is what the industry does. If they do laminate it is
at the bend and only 3 laminations 1/4" - 1/16" - 1/4".

Even skis that laminate have different wood grain pattern every two
inches.


[email protected] wrote:
> Dwight wrote:
> > I'm making a ski and it will be 8" wide. The width will be 4 - 2"
> > strips glued together. Should I glue it together first and then bend or
> > bend each strip and then glue it together? I'm guessing I should bend
> > each strip first, since the steaming process would weaken the glue
> > joints.
> >
> >
> > Thanks
> > Dwight
>
> Building skis of edge-joined strips seems to me an invitation to major
> injury _real_soon_.
>
> I'd suggest that you think, instead, in terms of laminations.
>
> J

Dd

"Dwight"

in reply to "Dwight" on 24/07/2006 7:15 AM

08/08/2006 2:03 PM


Teamcasa wrote:
> "Dwight" <[email protected]> wrote in message
> news:[email protected]...
> > I'm making a ski and it will be 8" wide. The width will be 4 - 2"
> > strips glued together. Should I glue it together first and then bend or
> > bend each strip and then glue it together? I'm guessing I should bend
> > each strip first, since the steaming process would weaken the glue
> > joints.
> >
> >
> > Thanks
> > Dwight
> >
> >
> Bending wood is not all that tricky. However, to get a reasonably accurate
> bend, you will need a form. Both the negative and positive form to sandwich
> the wood into.
> Depending on the complexity and radius of the form, the wood strips need to
> be thin (1/16" +-). After you have all of the strips ready, you need to
> glue and then clamp this wood sandwich into the form and let set. Do a
> Google search on "bent wood laminations" and you will see what I mean.
>
> http://www.teamcasa.org/workshop/bathvanitydetail.htm
> Above is a link to my last project that employed bent wood lamination.
>
> Dave


Did you steam bend our just lay the laminate to the form?

Thanks

BB

Bruce Barnett

in reply to "Dwight" on 24/07/2006 7:15 AM

24/07/2006 9:52 PM

"Dwight" <[email protected]> writes:

>> Building skis of edge-joined strips seems to me an invitation to major
>> injury _real_soon_.
>>
>> I'd suggest that you think, instead, in terms of laminations.
>
> Possibly, but that is what the industry does. If they do laminate it is
> at the bend and only 3 laminations 1/4" - 1/16" - 1/4".
>
> Even skis that laminate have different wood grain pattern every two
> inches.

But does the end-joined strips end in the same plane? I would think
they overlap so the edge isn't in one fragile place.

[I fixed your top posting to make it easier to read]

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