I have the plans to make this in one of my bandsaw books and did in fact have a go a few times but always cocked it up and decided that life was too short, it used to take me most of the afternoon and a lot of head scratching.
Clearly this guy is very practiced and a correctly set up bandsaw/wood combination could cut that fast on a good day but I am wondering if the video has been speeded up?
He seems to have too many remaining fingers to have worked his way up to that vitesse!