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| Cocobolo set with a thin spot- how best to deal with it? http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=43961 |
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| Author: | Casey Cochran [ Sun Aug 10, 2014 1:36 pm ] |
| Post subject: | Cocobolo set with a thin spot- how best to deal with it? |
This set has a thin spot in one of the sides at about 28.5". The total length is 36" and the thin area is about .020" right in the middle, the edges are .090". Should I laminate/thickness/bend or bend then laminate? If the former, what glue should I use? |
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| Author: | Casey Cochran [ Sun Aug 10, 2014 1:37 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
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| Author: | John Arnold [ Sun Aug 10, 2014 1:46 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
I would go ahead and sand it to bending thickness, which for cocobolo I would recommend around 0.075 to 0.080". Bend it first, then laminate it with a matching piece of wood that is pre-bent to duplicate the curve. |
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| Author: | DennisK [ Sun Aug 10, 2014 2:46 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
How large is the thin spot? You could do a pointy cutaway. Sounds like just about the right place along the length to cut it out, and enough extra length that it shouldn't be a problem to lose an inch or two. |
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| Author: | Mike OMelia [ Mon Aug 11, 2014 3:24 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
Did you buy it that way, knowing the spot was there? If this is defective from the supplier, send it back. |
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| Author: | Jim Kirby [ Mon Aug 11, 2014 5:26 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
I have a similar cocobola side set that has a section that definitely leads to required laminating. Not so bad - I get my first experience with laminated sides (if I don't try that even before I get to these) No way I was sending it back to the supplier - it's almost the most spectacular piece of wood I have! |
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| Author: | Clay S. [ Mon Aug 11, 2014 5:38 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
If you use a Gibson style heel and a slightly wider than usual end graft you might be able to bury the thin spot between the heel and block. I also like Dennis's idea of saving the set for a cutaway. The thin spot could be cut out entirely. |
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| Author: | Jim Watts [ Mon Aug 11, 2014 5:49 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
I would send it back, it's not hard to come by nice sets of Coco. |
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| Author: | Mike OMelia [ Mon Aug 11, 2014 11:00 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
Jim Watts wrote: I would send it back, it's not hard to come by nice sets of Coco. Deal with someone like Hibdon. Their coco has been astounding. They even replaced a side set at no charge that cracked along pin knot. No reputable dealer is going to send wood out at 0.02" period. Unless they are veneer dealers. |
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| Author: | jac68984 [ Tue Aug 12, 2014 5:21 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
If you need to keep the sides, I would use on a cutaway. If you don't like the idea of totally laminating sides, just laminate the cutaway. Super easy. Just remember where the thin spot is and sand judiciously. That's a nice back set, but the sides are just so so. I would try and get replacement sides. Mose dealers will work with you to find a decent match. Good luck! |
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| Author: | Casey Cochran [ Wed Aug 13, 2014 7:29 am ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
I got this set from a friend, so returning to a dealer is not an option. The sides came from the same billet, they just haven't been sanded yet. Thanks for the suggestions. |
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| Author: | hummingbird [ Wed Aug 13, 2014 11:01 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
Cut out a sound port where the thin spot is |
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| Author: | Pwoolson [ Thu Aug 14, 2014 7:18 am ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
^^X2 on This^^ At .020, I don't think you'd even be able to get it sanded without sanding through it. So a lamination is probably not going to help a lot. |
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| Author: | Mike OMelia [ Thu Aug 14, 2014 8:37 am ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
Call Hibdon and see if they can round up an orphaned set of sides. Use existing wood for binding, etc. |
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| Author: | Heath Blair [ Thu Aug 14, 2014 9:03 am ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
Everyone else has given you some pretty good advice. I've been following this thread, but haven't commented. I have a few questions for you. What size guitar are you planning to build with the set? Some of the smaller guitars have side lengths less than 30" and you might be able to cut the thin section out all together. Also, how did you measure the thin spot? Are you sure it's THAT thin? How large of an area does it span? And just out of curiosity, how did it get that way? Sorry, that was a lot of questions! |
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| Author: | John Arnold [ Thu Aug 14, 2014 11:18 am ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
Just to be clear, I was advising to only laminate in the thin area, not the whole side. If it is possible, place the thin end at the bottom of the guitar, where the tail block will reinforce at least part of it. Normally the tail block is a little wider than the neck block. |
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| Author: | Casey Cochran [ Thu Aug 14, 2014 12:47 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
I was thinking about an OM or an L-00 for this set. The area is probably 2" in diameter and I don't know how it got there- possibly the saw blade drifting? Thanks again for the suggestions. |
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| Author: | John Arnold [ Fri Aug 15, 2014 9:56 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
Bandsaw drift, probably. It is a common malady that I still have to be careful to avoid....and I have used the same resaw for 24 years. |
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| Author: | johnparchem [ Fri Aug 15, 2014 10:12 pm ] |
| Post subject: | Re: Cocobolo set with a thin spot- how best to deal with it? |
I am with John, if you can place the side or the side that has the band saw drift on the inside, then just place a patch over the thin area. .02 is enough to keep from sanding through to the patch if you are careful. I once on a refinish almost sanded through a side. I placed a patch on the inside to reinforce the thin area and it worked out well. |
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