Four layers and the warp is divided in half besides. I wound 4 shuttles, 2 black and 2 white, then realized I needed 2 more, then 2 more than that! A good rule helped a lot. “Wherever the weft changes from one layer to another, we get a fold: wherever the weft weaves back in the same layer, we get a selvedge.” Since I want the layers separate and not joined, I needed to have 2 shuttles for each layer. The layers are divided in the middle at this point which requires more shuttles. “Double Weave on Four to Eight Shafts” by Ursina Arn-Grischott has been a big help.
I realized there would be a lot of tie-ups required for the box so was glad I could tie-up the treadles sitting on a stool. Even that was a chore. However, I’m glad my loom can give good, clean sheds even when 7 shafts are lifted, the 8th will stay down.
I soon realized I needed too many treadles even though I have 10. I made a skeleton tie-up, and it is easy to treadle. I don’t use a computer program, so I listed the lifts for each shed on adding machine paper and pinned it where I could see it.
I’d heard of using a rear-view mirror to see if the sheds are clear so went to Amazon and found these very cheap ones with a sticky back.
I even installed it myself! Just stuck it onto the loom by the shuttle race. It can even be adjusted up and down and sideways!
Here’s the mirror showing a clean shed.
For the top and bottom of the box the warp is further divided. It was a big exercise for me to figure out both the tie-up and the sequence of shuttles and colors.
I put colored threads in where the divisions are so when a shuttle dives in and out of the warp it goes in the same place each time.
The colored threads are at the back of the loom and can advance as needed and I don’t have to worry about them.