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Warped EIR sides?
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=41046
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Author:  Tai Fu [ Mon Aug 05, 2013 3:36 am ]
Post subject:  Warped EIR sides?

I'm not sure if this is a problem but as I was thicknessing the EIR side the wood seem to develop a warp that gets worse as I thin it... It's not really resisting and I can easily press it flat with a little bit of pressure, and I figure that I can correct it at the bending iron. Are wraped sides an issue? The wood really wants to bend... could almost bend it cold.

I normally wait a bit before I start on it but the wood is dry and I don't want to sit idle for 2 months while the wood gets used to Taiwan...

Author:  Michael.N. [ Mon Aug 05, 2013 3:47 am ]
Post subject:  Re: Warped EIR sides?

Go ahead and bend it. Sometimes wood like that will really want to twist and you end up with 2 different bouts for 2 different Guitars. Don't know what it's like with a bending machine (might be easier) but on an iron you have a certain amount of scope for correcting any twist. Sometimes it's a battle. Only one way to find out.

Author:  meddlingfool [ Mon Aug 05, 2013 5:12 am ]
Post subject:  Re: Warped EIR sides?

I don't worry about RH for the sides. It's going to get wetted and heated up anyway.

Author:  Quine [ Mon Aug 05, 2013 12:29 pm ]
Post subject:  Re: Warped EIR sides?

I think it will be OK after bending. Maybe keep a straight edge handy to see if you get any cupping.

Author:  Rodger Knox [ Mon Aug 05, 2013 12:34 pm ]
Post subject:  Re: Warped EIR sides?

If timber has differential residual stress (they all do, some more than others), it can move as material is removed.
It should not be a problem once the sides are bent and clamped in a form, but getting to that point may not be easy!

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