Darryl Keil Last Activity 2025-09-09 11:09 AM
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mikemcnerney

Posts: 35

Joined: 2012-07-19
Location: Ottawa, On

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Subject : curved headboard
Posted : 2012-09-13 7:40 AM
Post #36744
I've got a job for a very gently curved headboard over an area 65" x 42"
For the first time I am considering not using the bag but making the basic panel with curved ribs & glue & nail the curve ply. Then I would put poly back veneer on with.....contact cement.
Why you say? Patly because I don't know if there is a way to do this in the bag unless I fill the cavity between the ribs or have ribs every 2"?
And the other reason is saves time = more money for me.
thoughts please
Mike McNerney


 
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CarlMorrell

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Joined: 2010-01-29

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Subject : RE: curved headboard
Posted : 2012-09-13 7:22 PM
Post #36745 - In reply to #36744
How about making a form for the curve, and leave the form outside the bag?

I had to do that for some curved legs I made. Put the laminations in the bag, used evacunet and clamped the whole thing to the form that was outside the bag.


 
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Darryl Keil

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Joined: 2003-05-22
Location: Maine

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Subject : RE: curved headboard
Posted : 2012-09-13 7:53 PM
Post #36746 - In reply to #36744
Carl, you beat me to it, I was going to suggest the outside technique. Mike, its quite easy and would allow you to use a much better glue than contact cement.

Darryl Keil


 
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mikemcnerney

Posts: 35

Joined: 2012-07-19
Location: Ottawa, On

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Subject : RE: curved headboard
Posted : 2012-09-14 6:25 AM
Post #36747 - In reply to #36746
So it's more or less like what you did in your video with the curved stringer?
1. build the form
2. take 2 layers of curve ply & the veneer (approx 5/8" thick) & put it in the bag,
pull the vacuum & then clamp that to the form.
3. when dry, then glue & clamp that to the form permantly
In step 3 is it OK to simply clamp around the perimeter of the 42" X 65" assembly or do I need to make cauls to go accross & over each rib?
MM


 
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Darryl Keil

Posts: 1455

Joined: 2003-05-22
Location: Maine

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Subject : RE: curved headboard
Posted : 2012-09-15 5:49 PM
Post #36749 - In reply to #36747
Yes, but. When you put the laminations in the bag and draw a vacuum, make it a really light vacuum. Just enough to squeeze the bag and laminations together. Then put it on the form, clamp as needed, when everything is in place run the vacuum up to full.

If the curve is just an arc you will only have to clamp at the ends. If its a "S" shape then you will need extra clamping in the concave part.

As far as gluing the curved ply just around the perimeter of the framework, that kind of depends. If the customers using the bed get...um exuberant at times, it wouldn't do to have the head board rattling against the framework in the middle, heh?


 
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CarlMorrell

Posts: 28

Joined: 2010-01-29

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Subject : RE: curved headboard
Posted : 2012-09-14 7:06 AM
Post #36748 - In reply to #36746
Darryl,

A lot of what I know about veneering, I learned from you. So when I suggested that, it was really you!

Carl
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