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PostPosted: Mon Dec 07, 2009 8:41 pm 
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Cocobolo
Cocobolo

Joined: Wed Apr 23, 2008 6:58 pm
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I had a first today... as I was scalloping the tone bar in a small-body guitar top, I ran into some sort of crystallized pocket in the wood. There was nothing visible on the outside of the brace stock, but when I ran into it, the wood along a 2-inch area was discolored, sort of amber/brownish, and very brittle! The chisel just stopped and caught repeatedly on it, as if it were some sort of calcified pocket or something.

Also, the tap tone of the top is lower in tone than it should be, given the thickness of the top, and the height of the brace wood still remaining. It may be due to some other influence, but after thinking about it, I'm leaning toward chiseling this brace out of there, and replacing it with another piece.

Has anyone ever ran into a similar situation? Would replacing the tone bar seem to be the thing to do? (My instinct say 'take it out and do it over').

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Ken Mitchell
Durham, NC


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PostPosted: Mon Dec 07, 2009 8:50 pm 
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Koa
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Joined: Sat Mar 07, 2009 7:56 am
Posts: 1825
Location: Grover NC
First name: Woodrow
Last Name: Brackett
City: Grover
State: NC
Zip/Postal Code: 28073
Country: USA
Focus: Build
I'd replace it. I call them "pitch pockets" but I'm not sure that's the right name. I candle my tops (hold them up to a bright light) to look for them before I use them. I doubt you could see then that way in something as thick as a brace. I've never found any in braces but I deflection test all my braces before I glue them on. I carved into one carving a neck once. That was a bummer.

I suspect some people who know alot more than me will explain them better, and maybe tell how to avoid them.

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PostPosted: Mon Dec 07, 2009 8:55 pm 
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Koa
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Joined: Wed Oct 21, 2009 7:46 pm
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First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
A bear tooth?

ok, ok... Eat Drink

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Francis Richer, Montréal
Les Guitares F&M Guitars


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PostPosted: Mon Dec 07, 2009 9:00 pm 
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Cocobolo
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You mean bear claw ?? :)

Ti-Roux, t'es cajun, ou canadien?

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Durham, NC


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PostPosted: Mon Dec 07, 2009 9:01 pm 
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Koa
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First name: Francis
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City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
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Status: Semi-pro
Daaaaah! Ok ok, claw!

oops_sign

Oui, je suis de Montréal! Et toi?

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Francis Richer, Montréal
Les Guitares F&M Guitars


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PostPosted: Mon Dec 07, 2009 9:03 pm 
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Cocobolo
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Ah... Ti-Roux, I just looked back and saw all of your info. ;) Vive le Quebec!

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Durham, NC


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PostPosted: Mon Dec 07, 2009 9:04 pm 
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Koa
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First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
Yep, Vive le québec! And you're from..?

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Francis Richer, Montréal
Les Guitares F&M Guitars


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PostPosted: Mon Dec 07, 2009 9:06 pm 
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Cocobolo
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Caroline 'du nord', mais bien au sud des USA :)

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Durham, NC


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PostPosted: Mon Dec 07, 2009 9:09 pm 
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Koa
Koa
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Joined: Wed Oct 21, 2009 7:46 pm
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First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
Oh and there's a french community there? that's great!

Sorry, i've screwed up the bear claw brace topic...

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Francis Richer, Montréal
Les Guitares F&M Guitars


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PostPosted: Mon Dec 07, 2009 9:14 pm 
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Cocobolo
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Joined: Wed Apr 23, 2008 6:58 pm
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Ti-Roux, no problem! Maybe others will chime in on the topic.

Check your inbox for a PM.

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Ken Mitchell
Durham, NC


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