I found the following outline put together by Robert very interesting. Unfortunately, I can't read French, but the photos do a great job of outlining some of the pertinent steps in board manufacture. What is notable is that Robert builds his own boards and uses some different methods than what you would find used by production builders like Cobra International. For example, check out how he establishes his rockerline.
For some reason the url didn't copy right and appears to be cut short (some parts in blue and others in black). You might want to copy the whole line and paste it up rather than clicking on it. If things don't work well, you can go to the Maui Sails forum and open the thread "Board made by rb".