This rather difficult image shows the fretboard having just had the fret slots cut on this "sled" which passes over the table saw. The saw blade is a special blade made to cut fret slots at the width required to seat the frets. Taped to the wood is the acrylic guide which indexes with a little peg in the sled. The guide is just barely visible. It has slots which insure that the frets are cut in the right place.
Now the fretboard must be cut to shape, tapered to fit the neck. This "sled" makes those tapered cuts. The wood is East Indian Rosewood.
Now the tapered fretboard must get its end shaped
A little work on the band saw and the sander and the fretboard is shaped. The 14th fret will be at the edge of the body.
Now the mother of pearl markers are installed and this fretboard is ready for its frets. That will be tomorrow's project.