These are called heddles, there's one for every warp end. Each end needs to be threaded through one heddle. Heddles are attached to harnesses (except in jacquard weaving where they're each independently controlled).
Taking a break from threading for a photo op. I have 560 ends total. Basically the warp is traveling from the back beam, which I wound it on to, to the front beam.
After the ends go through the heddles, they come through the reed. I'm getting close!
Warp tied onto the bar attached to the front beam. Tension all nice and even.
Winding my first bobbin. To start, I'm using the same yarn in the weft as I did in the warp. (I usually refer to my warp as ends and my weft as picks.)
The wound bobbin with my weft, goes into a shuttle. I'll use this shuttle to carry the yarn across the fabric. I put a few pieces of paper towel in first, just to get past the knots, so when I start weaving, the ends are all nice and next to each other.
First few picks, I stopped there for now. Love that my shuttle has my name on it. That one's from college, I had my name on all my tools back then!
So pretty! Now, to get weaving! More as I go!