Another weird music video for you. They had a cool website with lots of great stuff, but alas it's gone now, replaced by stupid Facebook. I despise Facebook, I can't wait for the day when they go the way of MySpace.
Cutting nut slots ( the slot for the nut, not the slots in the nut for the strings ) has always been a pain in the ass. I've done it with the table saw, with the fret slotting jig, and freehand with a file, and it is always more adventure than I like. There has to be a better way, and this contraption is it. ( The gray clamp is not part of the jig, it is just there to keep the router from tipping off. )