Armando -> Question for luthiers (Jan. 14 2008 0:51:04)
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Hi all Recently i've finished a flamenco guitar and i've got several problems on that guitar. I have already mentioned some of them in previous treads. Soundwise the guitar is not too bad after it is somewhat broken in. However there are some ugly tones on the d and a string from the fifth fret upwards. The tone is nasal and sounds like out of a cardboard box. Has anybody an idea what could be the reason for that. Well as you might know the guitar has a too high string action of 4mm at the 12th fret. The distance from the low e string to the soundboard is 11,5mm at the 19th fret. However the ugly tones should not appear as classical guitars have that string distance as well and it doesn't sound like that. The back is rather stiff, about 2,3mm thick and 2,2 around the periphery. The top has about 2,1 mm and 2,0 around the periphery. The top has too much doming of about 4mm in the center. the bridge is made of indian rosewood and it has a weight of about 22 grams. The problem with the doming occured when i glued the braces on the top. The pracing pattern used is shown on the link below. http://img292.imageshack.us/img292/9348/scannen0001af6.th.png The top deformed to such a shape as shown below. Allthough the solera has not more than three milimeters of dome in the center, the dome of the soundboard came out between four and five mm. I was taking care about humidity during glueing. Humiditiy and possible change of humidity should not be the cause. http://img218.imageshack.us/img218/5189/scannen0002in2.th.png Hope this might give some insight. Armando
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