| Official Luthiers Forum! http://www.luthiersforum.com/forum/ |
|
| reglue loose brace http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=35972 |
Page 1 of 1 |
| Author: | Tai Fu [ Sat Mar 31, 2012 10:43 am ] |
| Post subject: | reglue loose brace |
Remember that guitar with the spruce bridge plate a while back? There was a crack in one of the X braces, but upon further inspection not only that brace is cracked, but the entire lower section of that brace is completely loose and dangling. How can I go about regluing loose braces? what kind of glue should I use for this? I was actually kind of wondering if I should just go ahead and remove the back so I can take care of all the problem at once... |
|
| Author: | wbergman [ Sat Mar 31, 2012 11:40 am ] |
| Post subject: | Re: reglue loose brace |
I vote for removing the back. And probably remove the brace or braces and put in ones with proper grain alignment. |
|
| Author: | theguitarwhisperer [ Sat Mar 31, 2012 12:39 pm ] |
| Post subject: | Re: reglue loose brace |
That's one of the possible effects of invisible runout, the braces can split along the grain and pop off the soundboard. Here's a photo of a commercial brace I bought from a reputable supplier taken of the side of the brace. As you can see from where I split the wood, the invisible grain runs out from the top to the bottom of the brace at a pretty severe angle. Any one of those grain lines is a potential weak point along which the brace can split. You can't really tell which direction the grain is running once they're sanded smooth. |
|
| Author: | John Arnold [ Sat Mar 31, 2012 8:42 pm ] |
| Post subject: | Re: reglue loose brace |
On the older guitars I favor hot hide glue, but I will use Titebond to reglue braces on modern guitars, especially if I need extra working time. I would never remove the back to do this operation. I work glue under the braces with a small spatula. I use brace jacks every two inches or so, and clamp a board across the outside if needed. |
|
| Author: | nyazzip [ Sat Mar 31, 2012 10:54 pm ] |
| Post subject: | Re: reglue loose brace |
i had to do it a couple months ago, and i ended up: keeping the guitar assembled, using watered down titebond, squirted in with a syringe and long rubber tube. to clamp, i (beforehand) made a few lengths of wood exactly the right lengths(if the ends are rounded off a bit, they can be a few mm too long, by tilting you can get them to fit)by cutting/sanding till they wedged in firmly enough to jam everything together. my braces were actually cracked, exactly as in the other poster's photo, but the concept is the same |
|
| Page 1 of 1 | All times are UTC - 5 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|