I've had a few questions lately about how to set up a heddle rod. When I was first learning how to weave, I searched for a heddle tutorial high and low and couldn't find anything! I had to do some experimenting before I understood exactly what they were. See those two dowels at the top of
The pattern at the ends of this scarf is the 4/1 Weft Float - Double Huck Spot Weave, following the instructions on page 15 of Betty Linn Davenport’s book on textures and patterns for the rigid heddle loom.