Please, I need help:
I glued on the fingerboard on my 1st build (flamenco guitar) and after removing clamps I noticed it's not flat
The part between 1st and 12th fret is flat and the part between 12th and 20th fret is flat, but the 1-12 part has a slight back angle (picture 1).
The gap between the ruler and the 20th fret is about 1mm.
I thought about flattening the fb - it's about 6mm thick now, the plan says it should be 4.5-6mm thick, I should be able to flatten the whole board
(removing most at 12th fret and less and less toward both ends).
But: The soundboard has a built-in curve in it. It's flat from heel block to sound hole and then it goes up toward the end block.
If I made a line parallel with the 1-12th fret part of the fretboard, at the place where the bridge should be,
the line would be only 3mm above soundboard(picture 2):
The strings should be about 6-7mm above soundboard at the bridge, according to my plan. If I want <3mm string clearance at 12th fret, now it would be about right, yes?
But if I'd flattened the whole fingerboard I'd effectively decrease the back angle thus decrease the clearance between strings and the soundboard.
As I cannot make the bridge less then 6mm high I'd have to increase the clearance at 12th fret, is it right?
So flattening the fb would in this case result in higher action at 1-12th part of the fretboard? Not flattening the fb would only result in higher action at 12-20 frets where the guitar would be seldom played.
Am I thinking right? Or should I include neck bow under string tension into this?
English is not my primary language so it's possible I mixed it up a little - hopefully the pictures are making it clearer.
Thanks for any help!
