Marcel's GAS SGM-1 (PBG build #5)

[Marcel]

Got that Simon.. Used a brand new set of Ernie Ball Slinky 10-46 strings.

12th fret intonation is fine, but as you go down the neck the de-tuning gets worse with the 2nd fret being the most noticeable as due to how often chords down there use it.

When looking at it direct on from the front I can perceive a step in the nut that makes the G string seem almost 1mm longer (and to a lesser extent also to the B string), but when you look across the nut the fretboard edge looks straight. Being a Black nut in not the best light makes it hard to see but from the front on position that is how the light reflects off the string so I presume there is a dip in the nut at the G string that is not evident on the nuts upper edge. I'm presuming the extra 1mm on the string is not affecting the open/12th fret intonation set up but it is causing me to set the intonation wrong with respect to the fret board and thus all the wrong fretted notes.

As a start I think I'll just replace the nut, most probably with a bone one.

[wazkelly]

Got that Simon.. Used a brand new set of Ernie Ball Slinky 10-46 strings.

12th fret intonation is fine, but as you go down the neck the de-tuning gets worse with the 2nd fret being the most noticeable as due to how often chords down there use it.

When looking at it direct on from the front I can perceive a step in the nut that makes the G string seem almost 1mm longer (and to a lesser extent also to the B string), but when you look across the nut the fretboard edge looks straight. Being a Black nut in not the best light makes it hard to see but from the front on position that is how the light reflects off the string so I presume there is a dip in the nut at the G string that is not evident on the nuts upper edge. I'm presuming the extra 1mm on the string is not affecting the open/12th fret intonation set up but it is causing me to set the intonation wrong with respect to the fret board and thus all the wrong fretted notes.

As a start I think I'll just replace the nut, most probably with a bone one.

Dodgy plastic nuts on most kits and have replaced every one on all of mine.

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