In this video I started by cutting a slot for the nut to slot in to the fretboard. I did this on the cross cut sled on my tablesaw, making a couple of passes to get the slot to the right size. Then I did a bit of shaping to the end of the fretboard using the belt sander.
Next I wanted to add the frets to the neck, and I used a free online tool by StewMac which accurately calculates the correct fret spacing for the scale of any guitar. Then I carefully marked these up measuring the distance from the nut slot using a steel ruler.