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Intonation has nothing to do with the box. It's all in the actual vibrating length of the string.
1st-"Perfect" intonation is not always gonna happen ....... I'm near 50 builds now and only the last 20 or so have I been routinely getting perfect intonation.
2nd- copying frets from another instrument is a bad idea IMHO. If you do, you have the determine the scale by measuring from the nut to the 12th fret and doubling it.
Best bet use a program or Old Crow's math method and mark your own fret to what ever scale to pre-determined to use.
Doing this, you set it up for nut to bridge.
Then, you tune the string, and then play the string open and fretted at the 12th fret. The open note and the 12th fret note should be the same. If they aren't, slide the bridge back or forward, re-tune, re-check.
AFKAM
fender got started by copying his scale from an epihpone..
no shite..
its all in fine tuning the bridge
the tricky part of copying a guitar neck is the taper.
i slotted a bit of pine a few years ago and i copy mine off that. If i want a shorter scale i just start with my nut at a different slot..
if you start with a nice fat saddle you're giving yourself more adjustment later..
Imma with Matt on this one. Intonation is not hard to achieve yet you will never achieve perfect intonation. You might get close but will still be off. My B and G strings (I use DGBe strings) are always out a little. But if you think of it, no matter what you do, you will never perfectly achieve exact tonality by sheer nature of the strings, their mass, the gauge, the type, what note is their root... There is a great article that explains this all.
http://www.doolinguitars.com/intonation/intonation1.html
I especially like page 4 where they go into intonation at the nut. Diane (in Chicago) and I both have used this method. Werks Reel Well.
-WY
I know how to intonate ... been doing it on guitars and basses before doing it on cbg's.
If it gets worse as you get nearer the nut, then it's probably a nut height issue.
See, it's not all cut and dried easy. I would say string action/nut height is too high. You'll stretch the string more with a higher nut, Stretch fretted string = a sharp note. I an assuming it's going sharp.
What exactly is it doing, and when, where?
AFKAM
btw- for what it's worth, on a straight one piece bridge, I just do the top and the bottom strings .... can't do anything about the middle with out making a compensated saddle.
On my last one I thought that I would get pretty much perfect intonation by using an adjustable bridge. Tuned the strings (playing thought my computer and checking intonation using the tuner in Garage Band). Strings in tune when open. Strings in tune at the 12th fret. Fine. Now, as I get nearer the nut the pitch goes a little sharp (only a little). Going from the 12th towards the bridge it goes a little flat. Turns out that the issue is nut height as mentioned above. This article seems to give the answer. Also the fact that the fret positions are based on equal temperament, which is always a compromise.
I haven't got round to undercutting the nut yet, but it's something that I will probably do at some time and will do on future ones.
Now, if you really want to get picky, how about this. I don't even what to think how you would cut for those frets.
try a zero fret roadkill, answers a lot of problems...
thats a just intonated neck huh ?
if u ever wanna get serious about part frets drop me a line, its easier than it looks//
try a zero fret roadkill, answers a lot of problems...
thats a just intonated neck huh ?
if u ever wanna get serious about part frets drop me a line, its easier than it looks//
Jef. I've wondered about that. How well does a zero fret work with slide?
I've just had another look at your Mundfick doubleheader. All credit to you for doing that, but as a someone new to playing that would give me nightmares, as would the neck above.
Jef Long said:
try a zero fret roadkill, answers a lot of problems...
thats a just intonated neck huh ?
if u ever wanna get serious about part frets drop me a line, its easier than it looks//
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