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RE: hijos de vicente tatay (in reply to mecmachin)
Yeah, that would make sense. It sounds like it's backbow introduced by pressure from the tangs. If it pulls out OK then you win and no harm's been done and if it doesn't then at least you'll have more data on how to proceed. Addressing it now would kind of be like flying blind, to a degree.
P.S. If you need any hints on figuring out bridge height just shout. I'm kind of wondering if I'm pushing out more suggestions than wanted, so I'll lighten up on it. I'm worried I might be taking the fun/satisfaction of discovery away, which wasn't my intention.
P.S. If you need any hints on figuring out bridge height just shout. I'm kind of wondering if I'm pushing out more suggestions than wanted, so I'll lighten up on it. I'm worried I might be taking the fun/satisfaction of discovery away, which wasn't my intention.
Without your advice I wouldnt have come so far, so please continue following my thread, and don't hesitate to give your opinion as generously as before. Thank you, very helpful. Don't worry, if I decide differntly than advised, its because I am a brickhead. In the scratch issue I agree with you, only here I have a cheap guitar with a 4mm soundboard which allows to try out some french polishing.
Posts: 4720
Joined: Aug. 9 2006
From: Iran (living in Germany)
RE: hijos de vicente tatay (in reply to mecmachin)
quote:
ORIGINAL: mecmachin
placing the ruler on the higher frets, it is about 4mm over the sounboard in the bridge area. I basically have two bridges available: a classical one (8mm high) and a flamenco one (6mm high). I must chose the right one before polishing, as they have different surfaces.
I think I ll have a go with the flamenco bridge. If the neck was completely straight under tension, in order to have 3.5mm at fret 12, I should have a total height (with bone) of 7mm at the bridge. But I guess this would buzz as hell... If the neck came up 1mm (which would be better I suppose), then I could even have the bridge 1mm lower.
Ideas or hints welcome.
Maybe something interesting I remembered from the Anders documentary Simon made years ago, related to the string height over soundboard. He talks about it here at exactly 22:40 (I copied the video with time stamp few seconds before it)
Well I am a pretty high then (4mm instead of 2), but I have got the frets on already, so this is getting me closer to the optimum. Let's see how will turn out.
RE: hijos de vicente tatay (in reply to mecmachin)
Hello,
happy Christmas everybody.
Just wanted to give a short update for those who might be interessted, as I have a little time right now.
About the frets and the backbent neck: when checking the order of frets I had a sort of a shock, as on the bill was stated 6265, though I am sure having ordered 6210. Both are soft frets, but 6265 has 0.6mm tang against 0.5mm of 6210 which I wanted. So no wonder I found it hard to hammer them in, and the neck has tilted backwards. I felt so sick about it...now I have replaced them with 6290, without too much of a mess, and the neck is straight now.
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RE: hijos de vicente tatay (in reply to mecmachin)
next I have sanded the soundboard down a bit (it is really thick), and even the bridge area is flat now. I could go on sanding to eiminate all sorts of shades, but I think I am gonna stop, it won't be perfect anyway. Better prepare the clamping setup for the bridge before polishing.
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RE: hijos de vicente tatay (in reply to mecmachin)
and yes: compensation: The original bridge location is too short, the bridge-12th-distance was smaller than 12-nut-distance originally. So I will have to move everybody somewhat back, and will probably use Estebanana's gesso hint to hide the misery in front.
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RE: hijos de vicente tatay (in reply to mecmachin)
quote:
ORIGINAL: mecmachin
and yes: compensation: The original bridge location is too short, the bridge-12th-distance was smaller than 12-nut-distance originally. So I will have to move everybody somewhat back, and will probably use Estebanana's gesso hint to hide the misery in front.
Instead of filling with gesso, which honestly is going to look like sh*t if used in that area, why not consider putting down an opaque golpeador? It doesn't have to be white or black plastic, one made out of wood veneer would look really nice on this guitar.* You could use a standard thickness (0.5mm or 20 thou) maple veneer and then put a thin clear plastic pick guard material on top of that (not golpeador thickness, but the thinner stuff people put on steel stringed guitars which is about half that). There's a maker in Granada who does that and it looks pretty good.
As a matter of fact, Estebanana has done wooden golpeadors before (I haven't) so he could probably weigh in with some advice. I think the gesso was a good suggestion for the saw cut problem, but there's so much pulled out fibre in front of the bridge that I'd be concerned the gesso might stand out too much. Also, maybe double and triple check those measurements, as it seems strange that the bridge was that badly misplaced.
I've got to say, the guitar's looking really good, it looks like this has turned out to be a worthwhile project.
*Or fill with gesso just as a fill and levelling agent, then lay down the golpeador on top of that. If a plastic golpeador is chosen then it's best to polish the guitar before laying it down. Wood might be a different matter, but I'd rather hear how estebanana did it than weigh on that in either way.
I have been looking up my other thread with the rumbero scratches on the soundboard http://www.foroflamenco.com/tm.asp?m=360149&p=1&tmode=1&smode=1 and the shellac-dropfill-technique should be an option...or maybe better hide glue, as the bridge has to stick near and the shellac would penetrate the glueing area? I don't worry too much about the look...
quote:
Also, maybe double and triple check those measurements, as it seems strange that the bridge was that badly misplaced.
You confirm that the fret12-bridge-distance should be slightly bigger than the fret12-saddle-distance?
RE: hijos de vicente tatay (in reply to mecmachin)
quote:
quote:
I salute your work ethic
thank you, I feel like an obsessive beginner
Started polishing finally. Cool, I thought, only come back every couple of hours, and in the meantime I would handle the issues of real life.
Well, french polish makes appeaer two cracks on the soundboard which I didn't see before and maybe created myself by sanding, scratching or whatsoever. It's getting really tough again mentally...
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RE: hijos de vicente tatay (in reply to mecmachin)
the soundboard has a middle piece, the pieces are joined together and stabilized from behind by flat wood squares of 20x20x2mm. The cracks appear at or nearby the joints. So far I cannot see anything annoying structurally.
I propaby will keep on polishing and deny the observation. The lesson learned from this experience would be: If you can avoid, don't touch.
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