Sorry it took so long to get back to this thread. Life has a way of making you do other things besides those you'd like.
So, when I left you last, the fretboard was in clamps. After the glue was dry, it was time to lay out the fret positions on the board. I normally size the board to the neck, and then work off of a center line. But this board has no taper, so I thought I'd take advantage of that and use it to square my fret lines.
I use StewMac's fret calculator to determine the position of my frets. It gives fret distances from the nut, as well as fret to fret distance. I begin my measurements with the nut to fret positions, then fine tune with the fret to fret measurements. To begin, for the first 3 frets, it's a simple matter of using my calipers to mark the fret positions, like so:
After the 3rd fret, what I do is use a 35" rule to get to the whole inch, and then finish with the calipers. For example, the ninth fret is 13.783" from the nut. So using the 35" rule, I measure to 13", and place a little mark.
Then, i adjust my calipers to .783", screw down the locking screw, and, measuring from the 13" mark, I mark the final position of the fret.
I continue in this way until I have all the fret positions marked.
After which, I double check the fret positions by measuring the fret to fret distances provided by the fret calculator. I then scribe the fret positions with a razor, and trim the fretboard to fit the neck.