Mario Proulx wrote: but you'd still have to calculate the exact taper for each and every fretboard,
Which is why I chose SolidWorks for my CAD software. SW is a parametric modeler which although it has some downsides, allows me to have models driven from spreadsheet data. I collect a few key parameters: Scale Length, width at nut, join fret, width at the join fret and a couple others and enter these parameters into my spreadsheet. I then press a button in solidworks and the model is re-built to the new parameters. One more button and the tool paths for the new configuration are generated.
If there is a down side to this method, it's that the customer must select the exact taper of the fretboard in advance and the neck must be matched to the FB rather than the other way around but, that's a downside to the faux-bound (and probably any bound) fretboard.
Now that I've built this parametric fretboard model, the computer part takes less than 5 min of actual hands on time to create a custom model.
Now I'm totally hijacking but CAD and CNC offers some interesting possibilities. E.g. everyone set's their neck at around 1.5 degrees to get the proper saddle height. With a CNC fretboard, I could build the set into the FB by making it taper in height from nut to bridge end. Although this probably isn't too big an advantage for acoustic builders as there's always fitting to be done but I think this could open some design doors for through neck electric makers.
This probably belongs in the other thread but I think a lot of people have the impression that CNC is best for doing the same thing over and over again and while CNC is very good at that, where it really shines is in its ability to do one offs very quickly and very well if the proper upstream software is selected.