| Official Luthiers Forum! http://www.luthiersforum.com/forum/ |
|
| Backstrip Problem (posted in wrong forum) http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=26868 |
Page 1 of 1 |
| Author: | Mike OMelia [ Tue Apr 06, 2010 1:09 pm ] |
| Post subject: | Backstrip Problem (posted in wrong forum) |
I recently used a backstrip from LMI (http://www.lmii.com/CartTwo/thirdproduc ... Backstrips, B16B, Cheveron). Really liked the color match. But after sanding board to 0.1", the whole thing simply split in half (along the centerline of the purfling). I even laminated the other side! Anybody ever have this happen? Suggestions? Mike |
|
| Author: | Tom West [ Tue Apr 06, 2010 1:18 pm ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
Mike: Have used LMI's backstripes but not this one .I've used B120B a number of times and have not a problem.I put these in when I join the top and then after sanding to thickness I flood both sides of strip with thin CA glue. Knock on wood I have not had a problem YET....!!! Tom |
|
| Author: | JohnAbercrombie [ Tue Apr 06, 2010 4:01 pm ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
Mike- Did you inlay the backstrip or include it (sandwich) in the back glue-up? When you say that you 'laminated the other side' - was this your cross-grain back seam reinforcement? Can you get the seam to close for re-gluing (and more reinforcement)? Cheers John |
|
| Author: | Haans [ Tue Apr 06, 2010 4:10 pm ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
Yup, i've had those problems with the large Washburn like strip. I cyano'd them and still had problems. I've stopped using them as part of the glue up, and now rout them in. I also have taken to glueing the inside spruce center strip in with industrial epoxy. No more problems... |
|
| Author: | Mike OMelia [ Tue Apr 06, 2010 9:16 pm ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
Very dissapointed. I will recover the back, but will never use a premade strip that has an obvious failure mode down the center line. Only way I would use it is as an inlay. |
|
| Author: | Mike OMelia [ Tue Apr 06, 2010 9:23 pm ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
But I do appreciate the replies. If you look at a lot of the premade strips, many do not have a failure mode down the center. Note to self. |
|
| Author: | Mike Franks [ Tue Apr 06, 2010 9:30 pm ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
Mike, I've used at least a hundred of them and have never had a problem. After I trim the back, I usually take the scrap cutoff piece and purposly break it. Most often, the 2 halves will break at the seam of the backstrip, not the center. I think you got a bad strip. Mike Franks www.mjfranksguitar.com |
|
| Author: | Mike OMelia [ Tue Apr 06, 2010 10:39 pm ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
Realy? U think bad strip? |
|
| Author: | Alexandru Marian [ Wed Apr 07, 2010 6:36 am ] |
| Post subject: | Re: Backstrip Problem (posted in wrong forum) |
The only decoration I somewhat trust to be sandwiched contains simple wood and veneers, and I go at great lengths to ensure very good joints. And then when I plane and scrape the back thin I always make sure not to pull on the seam, but push towards it or at least parallel, if that makes sense. I think the marquetry stuff is safer if inlaid in a routed channel. I would not sandwich it. |
|
| Page 1 of 1 | All times are UTC - 5 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|