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My first guitar.

After I finished planing my soundboard to thickness, it warped. I can take pictures later tonight. But both sides warped in the same direction, and it was book matched. So I believe this is a result of me removing more wood from one face than the other.

I have another sound board glued together, as well as a back, and neither of them warped. The dehumidifier doesn't indicate that there was a change in humidity. But I not completely ruling it out.

So Questions.

1.) Would removing more wood from one side than the other cause this.

2.) If this was caused by removing more material from one face than the other, and I'm a bit to to thin (.095") to fix it. Will it return to it's normal shape? Or am I better of using soundboard number two? {purchased with the foresight that I'd muck something up.}

the top is still equalizing to the humidity. what is the thickness???

_________________
John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it

If you have it glued together but not braced I'd just let it sit in the workshop for awhile. When it reaches equilibrium in a few days check it again.

At any rate, once it is braced with dry (drier the better) wood it should be fine

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Joe Beaver
Maker of Sawdust

Mine usually curve across the grain after thicknessing with plane+scraper. I find it rather convenient, since I thin from the back, and it cups to the side it's thinned from. Assuming you radius your braces, it just results in less stress in the plate

I always figured it was due to my cupped bench top (masonite that I only screwed down at one end, and then got water all over it while cutting shell), but maybe it's just a natural effect of the thinning process.