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Necks change shape under string tension, sometimes it is a major change and other times a very minor change in shape.
This guitar had a refret and was all strung up and had just a tiny bit of buzz on the bass E string, becuase the frets were all levelled and crowned we use the skim method.
Time to repair approx 30 mins
This guitar had a refret and was all strung up and had just a tiny bit of buzz on the bass E string, becuase the frets were all levelled and crowned we use the skim method.
Time to repair approx 30 mins
Traditionally we level the neck with a flat bar, attached link.
The flat bar does not take into consideration how the neck reacts under tension.
The flat bar does not take into consideration how the neck reacts under tension.
At one end of the jig is a big square nut that allows manual turning of the internal truss rod.
Alternatively, going the opposite direction, we can arch the jig
Turned one way, it raises the ends of the jig.
Up close of the arch.
On the fretboard, we attach some small standoffs to sit out jig onto
Three locations.
The jig sits onto the three standoffs.
Smooth frets, polished and crowned.
Playing the guitar revealed a slight buzz on the E string.
Playing the guitar revealed a slight buzz on the E string.
Using a fret rocker, we found the 20th fret was a whisker high, enough for the string to make contact.
In this photo we have a dual action truss rod operated flat bar.
For info on dual action truss rods, here is a link where we make one from raw materials.
For info on dual action truss rods, here is a link where we make one from raw materials.
Using some paper we check for contact at all three points, adjust the nut as required to match the neck shape.
