Acoustic Build: Tonewood Issue??

1365 Views 6 Replies 4 Participants Last post by WarrenG, Jul 19, 2007

Antz_Marchin

Discussion Starter · Jul 17, 2007

I'm a little concerned with my Walnut back that I recently purchased and thought I'd ask if it's a big deal.

The wood is beautiful with great figure and a hint of sapwood showing at the seam. The only issue that I have is that the 2 plates are slightly bent from end to end which isn't a big deal, but they are bent in opposing directions. So, for example when I lay them on top of each other with both "outside" faces facing upwards, I get a shape like this --> )( where my spruce top is very nice and flat and stacks perfectly flat --> ||

I tried clamping the plates on my gobar deck + with cam clamps for 24 hours with no luck. I just worry that when I go to glue the plates together, they will really resist and I will have a difficult time making contact at the seam as the right plate curves in a slight "U" shape while the left plate is slightly curved downwards in the same shape.

I'm just wondering if this is going to be an issue as I've generally only seen very flat tonewoods for building. Thanks for any advice.

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Lab123

· #3 · Jul 17, 2007

I have glued together boards as you have described....Don't worry about it. I prepare the edges and glue them together and clamp them to a piece of plywood with waxed paper separating the glued edge from the plywood. It should come out ok.....When you install the bracing you will never know it was warped.....Before you glue on the bars test clamp them on and see if it will be ok.....If you are not satisified go to plan B.....You can always break the glued joint after and reglue it .....I have found that when you steam or even wet these boards you might not like the results..... and you might......Lab

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