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bridge repair
http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10137&t=41208		 Page 1 of 1
Author:  Paul Meier [ Fri Aug 23, 2013 1:08 pm ]
Post subject:  bridge repair
First of many likely ridiculous questions, thanks in advance for your patience.
When using heat to release a bridge that needs to be reglued should I be concerned about the bridge plate and bracing also loosening from the heat? Maybe clamp those up as the top cools once the bridge is off?
Author:  Chris Pile [ Fri Aug 23, 2013 2:55 pm ]
Post subject:  Re: bridge repair
Dang! As many bridge removals as I've done, and I never gave a thought to the plate underneath.
GOOD QUESTION!
Author:  WudWerkr [ Fri Aug 23, 2013 8:59 pm ]
Post subject:  Re: bridge repair
:shock: Excellent question ! Thus far I have seen no issue , however I am a relative newbie. I have about 5 under my belt and as was said I never gave that a thought .

I hope more people chime in on this .
Author:  Stevelkneivel [ Mon Aug 26, 2013 7:12 am ]
Post subject:  Re: bridge repair
Wood is one of the best insulators out there. I often feel the plate, and when it's warm, you know the bridge will pop off. You can do it cold too. Do you know that trick?
Author:  WudWerkr [ Mon Aug 26, 2013 9:26 am ]
Post subject:  Re: bridge repair
Stevelkneivel wrote:
Wood is one of the best insulators out there. I often feel the plate, and when it's warm, you know the bridge will pop off. You can do it cold too. Do you know that trick?



Enlighten us please ! [:Y:]
Author:  Rodger Knox [ Mon Aug 26, 2013 11:03 am ]
Post subject:  Re: bridge repair
No, NOT the pop it off with a hammer trick!
Well, I guess it works when it works... wow7-eyes

edit: I thought Steve would be back with his technique, but here's the story.
Glue is not very strong in shear, so putting a block in front of the bridge and smacking it with a hammer will cause the glue joint to fail. I've never done this, and wouldn't recommend it, but others have had sucess with this technique.
Author:  B. Howard [ Tue Aug 27, 2013 4:38 am ]
Post subject:  Re: bridge repair
I have always been conscious of this, I also worry about loosening the neck block from the top when heating and lifting the fret board extension. But I am happy to say I have not seen any issues...but yes to me it is a concern. I use only as much heat as needed and work as quickly as I can in these instances.
Author:  Stevelkneivel [ Wed Oct 02, 2013 8:50 am ]
Post subject:  Re: bridge repair
No you don't shear it. You modify the chisel to get it to sit flatter to the top and you gently tap around the perimeter of the bridge a few times and eventually the sound of the tap changes dramatically....ok it's a shear, but a gradual one. Use a razor blade to cut the fibres holding on underneath. Clear as mud? It does work quite well. And it's neat. It's how Martin did it/ does it. At least they did back in day when I was there. It's really easy as well.
Author:  Rodger Knox [ Wed Oct 02, 2013 11:47 am ]
Post subject:  Re: bridge repair
Stevelkneivel wrote:
No you don't shear it. You modify the chisel to get it to sit flatter to the top and you gently tap around the perimeter of the bridge a few times and eventually the sound of the tap changes dramatically....ok it's a shear, but a gradual one. Use a razor blade to cut the fibres holding on underneath. Clear as mud? It does work quite well. And it's neat. It's how Martin did it/ does it. At least they did back in day when I was there. It's really easy as well.


That make perfect sense, and that is a method I will try!
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