Wood Laminations and Springback

[Kyle Boatright]

I'm working on the center section for a Hatz. The trailing edge of the
center section is a recurved lamination that provides better access to the
front cockpit.

I've steamed and clamped the strips into a form, and they have taken on some
of the curve, but when I unclamp 'em after they dry, I get significant
springback. The question is whether I need to allow for this in the
finished lamination, or whether the springback will go away when I glue up
the assembly?

FYI, the lamination starts as four 3" x 1/4" strips.

Thanks in advance,

Kyle Boatright

[Kyle Boatright]

"Kyle Boatright" > wrote in message
. ..
> I'm working on the center section for a Hatz. The trailing edge of the
> center section is a recurved lamination that provides better access to the
> front cockpit.
>
> I've steamed and clamped the strips into a form, and they have taken on
> some of the curve, but when I unclamp 'em after they dry, I get
> significant springback. The question is whether I need to allow for this
> in the finished lamination, or whether the springback will go away when I
> glue up the assembly?
>
> FYI, the lamination starts as four 3" x 1/4" strips.
>
> Thanks in advance,
>
> Kyle Boatright

Never mind.

This was supposed to go to R.A. Homebuilt...

[Bertie the Bunyip]

On 24 Jan, 00:29, "Kyle Boatright" > wrote:
> I'm working on the center section for a Hatz. *The trailing edge of the
> center section is a recurved lamination that provides better access to the
> front cockpit.
>
> I've steamed and clamped the strips into a form, and they have taken on some
> of the curve, but when I unclamp 'em after they dry, I get significant
> springback. *The question is whether I need to allow for this in the
> finished lamination, or whether the springback will go away when I glue up
> the assembly?
>
> FYI, the lamination starts as four 3" x 1/4" strips.
>
> Thanks in advance,
>

Just did my first laminations a few months ago. They didn't spring at
all once they were glued up.


Bertie

[Morgans[_2_]]

"Bertie the Bunyip" > wrote

Just did my first laminations a few months ago. They didn't spring at
all once they were glued up.


Just curious, to see how your experience stacks up with laminations I have
done.

What was the minimum radius for your laminations, approximately?
--
Jim in NC