Quick, cheap repair on guitar top

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Allen
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Quick, cheap repair on guitar top

Post by Allen » Fri Nov 05, 2010 9:08 pm

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"Originally Posted on:Sun Aug 29, 2010"


I'm getting more and more people calling me up asking if I'll do repairs, and it's getting pretty difficult to put them all off. So when I was presented this one I was doing my absolute best not to get involved, but the fellow was bound and determined to salvage something out of it. He's already bought a replacement to this one, and at only $600 new you can't do much, but he liked the guitar and hoped to turn it into a campfire guitar that he wouldn't feel bad about getting a few dings in.

Solutions were discussed, budget set, expectations set very low and a time frame of one week agreed upon.
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You can see that there are some pretty sever cracks running with the grain, but the worse is the cross grain break along the back edge of the upper transverse brace.
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The finish on this thing must be some sort of polyester. It's as thick as the spruce and as tough as concrete. Can't be great for tone.
img~

Another crack below the soundhole. This one isn't too bad.
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I tackled each crack one at a time, starting from the outside and working my way in using hot hide glue. This first one was particularly nasty as it was directly along the linnings. I had to do just the spot at the waist first, then put some blocks under that spot. Then tackle the rest of that crack on either side of the waist.

Once they were all glued up I levelled out the finish and then routed out some of the tip over the very worse of the cracks and glued in some spruce patches. Then levelled them out to the the existing top.

Tapping on the top after all the cracks were repaired revealed something not quite right inside, so I got out the inspection mirror and some good light and had another look inside. Found some cracked braces that were easily fixed with some more hot hide glue and a few clamps.

Finally I made some scratch plates from some figured Jarrah that I had on the shelf. Trying to hide as much of the damage as possible while still making them not look too hideous.
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And this is the only crack that is left visible. There was chunks of the finish missing so I filled them with some CA and scrapped smooth. A little buffing and I'm pretty happy with the results.
img~


Not that it's ever going to be considered a pretty guitar, but at least it is putting it back in service for the owner on a budget the both he and more importantly I could agree upon.

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kiwigeo
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Re: Quick, cheap repair on guitar top

Post by kiwigeo » Fri Nov 05, 2010 9:09 pm

Looks like someone sat on the thing....cant the guy afford furniture???

vandenboom
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Re: Quick, cheap repair on guitar top

Post by vandenboom » Fri Nov 05, 2010 9:09 pm

Allen wrote:

The finish on this thing must be some sort of polyester. It's as thick as the spruce and as tough as concrete. Can't be great for tone.
When I see Tanglewood's and other cheap guitars in the stores, it always amazes me how perfect their finish looks. I don't think I have ever got a finish looking as uniform and spot on as theirs. But when I read your spin on it Allen, I'm not so envious any more.
Frank

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Allen
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Re: Quick, cheap repair on guitar top

Post by Allen » Fri Nov 05, 2010 9:10 pm

I wouldn't be trying to reproduce a finish like this Frank. Might be ok for a coffee table, or even a boat finish. I had a hard time scratching it with a scalpel.

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DarwinStrings
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Re: Quick, cheap repair on guitar top

Post by DarwinStrings » Fri Nov 05, 2010 9:10 pm

Why did you spend the extra time and materials trying to hide the repair under the Jarrah Allen, was that at the customers request? or to satisfy your own way of doing things?

Jim

If a tree falls in the bush and no one hears it fall, did I really fell it.

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Allen
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Re: Quick, cheap repair on guitar top

Post by Allen » Fri Nov 05, 2010 9:11 pm

Both actually Jim.

And with routing areas out and putting in patches it would have required some sort of finish on them. This was easier to deal with than attempting a repair on the polyester.


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