Thursday, October 9, 2008

Notes on fret press

Fret work is rough on the hands. I am usually sore the day after a fret job. I guess because I don't like to use pliers to fit the fret wire. I run it through my fret bender then shape by hand. I have found pliers kink the wire and make high spots.

Notes on Fret Pressing:

Make sure the fret is square before pressing it in. I wasn't able to use a hammer because is was 1:00 in the morning but I took extra time to make sure that I had everything square.




Make sure the curve of the fret matches the fret board exactly.
14" Radius on the fret board and the 12" radius insert will leave the middle of the fret sticking up if it is over bent. It happened on the first fret I pressed in. I ended up going back with a 16" radius insert and pressing the middle down.




Obviously if I had a 14" radius insert ($4.45 at StewMac) this might have been avoided but It will happen on compound radius fret boards also.

Support the neck. Either make a neck support or buy the one from StewMac. I also ended up needing some spacers to press the frets into the transition from the heal to the block part of the neck.




I learned 2 techniques when I worked as a Luthier. The hammer-in technique and the epoxy glue-in method. I am not a fan of the hammer in technique. I liked the glue-in technique but it was messy and unforgiving of poor fitting frets. The press in method is superior to all however it requires the fit of a glue-in and the technique from a hammer in (sort of...)

One other thing I am not a fan of is nipping fret ends with end cutters. I usually saw the fret ends off with a razor saw or a dremel. It is too easy to unseat a fret with a pair of end-nippers.

I will try a steeper fret end on this neck and see how it feels. I have always felt that 35 degrees was too lax but tradition has kept me from changing it. I am not doing hemispherical ends on this neck as it is too much work.

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