Bummer......My Top Is Cracked!

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Tony_in_NYC
Posts: 827
Joined: Thu Aug 12, 2010 9:11 pm

Re: Bummer......My Top Is Cracked!

Post by Tony_in_NYC »

I think it tells you it is either a closed crack or just a finish crack. Either way, its better than an open crack.
tippie53
Posts: 7126
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
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Re: Bummer......My Top Is Cracked!

Post by tippie53 »

What you have is not a crack but sink . That does happen. Did you sand the top with or across the grain ? Also what glue did you use ? If the glue joint is too heavy when you sand the top ( I sand across the grain on the top with 220 ) the wood may swell if you do not control Humidity. The glue doesn't and you can develop a long sink line. This can be filled and leveled .
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Darryl Young
Posts: 1668
Joined: Fri Jul 30, 2010 6:44 pm
Location: Arkansas

Re: Bummer......My Top Is Cracked!

Post by Darryl Young »

Last night I located the bridge, masked off the perimeter, and removed the finish in the bridge area.

Turns out my finish is VERY thin. I didn't want a thick finish but with zero experience, I wasn't sure how many coats to use. I was able to peel up a few small pieces that I could measure and the finish is 0.0015" thick (half what I expected). Mostly, I had to scrape off all the finish but did get a couple 1/4" sized pieces. Anyhow, with finish this thin it wouldn't take much to split it.

The seam does not appear to be split/cracked at all......appears it is only a finish crack. So while I wish I didn't havethis tiny finish crack (you can feel it but the light has to be just right for you to see it), it's only cosmetic and I can live with it.

I prepped and glued the bridge in place last night <yeah!> My daughter is on the homecoming court tomorrow night for her high school and we have company coming into town to see her so I'm not sure I will get to work on the guitar anymore till Sunday evening or possibly Monday.

I appreciate everyone's suggestions and efforts to help!
Slacker......
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