Aeleus

FairyForest,

Before I started doing the blind cuts, I cut the fret tangs a bit short and just filled the slot ends with sawdust and glue. It's virtually invisible with a dark wood like ebony.

Since I started cutting my own slots with the CNC, I can just stop short and save myself the trouble.

Binding with the same wood is an interesting idea, but I'd probably do the filler first. Even if the filler shows (like on maple), it's better than having fret tangs sticking out.

As for the bits I use, I've happy with the selection from precisebits.com. They have a section for luthier tools. I got the .023" bits to match the fret wire I use. I suggest getting at least 2 or 3 bits - they are quite delicate.

Using the CNC to do frets is not the quickest way, but it does have a couple of advantages. 

1. The slot can have a constant depth that follows the radius. A minor advantage admittedly.

2. You can create blind cuts that end before the edge of the fret board.

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