Step 3: Make the loom!
The shinigami sandals have six loops as opposed to the traditional four. Mark out where on the board the end of the sandal will be, making sure it can wrap up around your heel! You can guess this, or take a run of string from the end of your toes and curl it up around your heel to where you want the sandal to end and use that measurement instead.
Once you have the markings in place, pound in the nails where indicated. 10d finishing nails will give you about two and a half inches above the board to work with. A few nails at the bottom are used to hold the rope taut.
On previous versions of the sandal the loom was symmetrical, but since this version extends to the end of the toes like a traditional sandal it has a shape like one, jutting forward a bit more where the big toe is.
At the far back of the board, hammer in a few nails to give you something to wrap the free ends of the rope around. The next step will show how this all makes sense.