crack repair question
ok , it's not a bass (1930's Martin -A flatback mandolin) , but it has a 3" hairline crack in the lower -mid left of the rosewood
back . i don't want it to spread and become a split .
it is a roundhole instrument , so i could possibly glue in a patch
from the rear if i had to access it .
my thoughts are :
a) vee it out , superglue the crack and fill it...
b) keyhole it on the ends with a small hole
fill the crack and leave it alone
c) patch on the inside and fill the gap on the outside with
some stock photos of (not my) instrument:
any suggestions would be appreciated.
First, here is a great resource where you are likely to find more info than a forum that mostly covers solid body electric instruments:
Second a 1930's Martin is way too good of an instrument to be learning repairs on.
Third evaluating a crack and the best way to repair it involves looking at it, preferably in person but good pictures are a huge help.
Finally, hairline cracks are not unusual in the winter. It may heal itself if you get a room humidifier.
Professional help is indicated.
The proper way to fix a crack like that is a glued in thin piece of rosewood (usually called a cleat), which can be done through the sound hole. I would take it to a good luthier to have the work done.
Don't even need to V it out. Get yourself two bar clamps with soft tips and glue it and clamp it quickly. I use Super-thin super glue for these type of repairs.
+1 to no guessing or OTJ training here, you get one shot to get it right.
+1 also to talkbass being an odd place to even ask about it! the fact that you asked it here frankly makes me even more inclined to second the "let a pro do it" advice.
"+1 also to talkbass being an odd place to even ask about it! the fact that you asked it here frankly makes me even more inclined to second the "let a pro do it" advice."
Hey, don't be so quick to say this is the wrong place.
There are a LOT of VERY SMART people on this forum.
I have been thinking of asking for medical, investment, and legal advice here.
What stands out to me is that this is indeed a repair you only get one shot at. I would either do one helluva lot more homework than posting on an Internet forum, or take it to a pro.
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