Acoustic Guitar Construction in the small shop -- Kenneth Michael Guitars LLC

Information, ideas and help for those constructing scratch built acoustic guitars or acoustic guitar kits - © 2017
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The purpose of this forum site is to provide a means for acoustic guitar makers at all skill levels to forward information, share experience and ask questions if project obstacles are encountered. We ask that egos be left at the door – the highest levels of courtesy and respect are to be shown to all. Posts containing disparaging comments will be removed. The “Acoustic Guitar Construction Forum” is owned by Kenneth Michael Guitars and is copy protected. Direct links to luthier suppliers are not permitted and will be edited.



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 Post subject: cocobolo binding
PostPosted: Sun Nov 01, 2015 11:39 pm 
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Joined: Tue Dec 13, 2011 7:44 pm
Posts: 5043
Going to bend some over a pipe this week.

Any hints as to temperature to use?
Could I soak them overnight?

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 Post subject: Re: cocobolo binding
PostPosted: Mon Nov 02, 2015 1:46 am 
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Joined: Fri Dec 23, 2011 8:33 pm
Posts: 1814
Location: Seattle
I have not bend cocobolo by hand. I had no problem bending it with my fox bending machine.

Rightly or wrongly I have been using less and less water when I am bending by hand. I generally just spirtz the wood to help start the heat transfer. I found if the wood is too wet it never gets hot enough on the pipe because it is boiling water, stays around 220 degrees. I hand bent figured koa bindings on my last cutaway guitar dry. My pipe is as hot as it goes. Dry I felt the wood get plastic very fast and was able to bend the very tight bends in the cutaway.

Good luck and hope you get more relevant advise than mine.

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 Post subject: Re: cocobolo binding
PostPosted: Mon Nov 02, 2015 1:54 am 
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Sounds good, John, thanks.

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 Post subject: Re: cocobolo binding
PostPosted: Mon Nov 02, 2015 8:18 am 
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Joined: Tue Dec 13, 2011 11:23 pm
Posts: 3924
I believe its important to use a backing slat to compress the material against the pipe. I machine all my bindings to less than .075"

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 Post subject: Re: cocobolo binding
PostPosted: Mon Nov 02, 2015 10:52 am 
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Joined: Tue Dec 13, 2011 7:44 pm
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Good info, thanks.

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 Post subject: Re: cocobolo binding
PostPosted: Mon Nov 02, 2015 12:16 pm 
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Joined: Mon Dec 19, 2011 4:19 pm
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Dave. when I was bending on my pipe, I bent a set of cocobolo sides. I had no issues, using a wet rag laying over the pipe to generate the steam. I just kept it wet with a spray bottle.
Bindings may be different.


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 Post subject: Re: cocobolo binding
PostPosted: Mon Nov 02, 2015 12:22 pm 
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Joined: Sun Dec 30, 2012 1:20 pm
Posts: 984
Location: Arnhem area, the Netherlands
Don't leave the wood too thick, otherwise it is hard bending, Dave.
herman


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 Post subject: Re: cocobolo binding
PostPosted: Fri Nov 06, 2015 4:08 pm 
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Joined: Mon Dec 19, 2011 8:49 am
Posts: 146
Location: Surrey, England
In my experience cocobolo is one of the easiest woods to bend and the only difference water will make is to help stop any scortching, the water won't help the bending process as cocobolo is so resinous, I doubt and moisture could be absorbed.

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