Here is a movie of weaving broken diamond twill on my warp-weighted loom:
I warped the loom using a diagram by Martha Hoffmann based on an extend piece from an excavation in Kaupang from the 9th century A.D.:
Martha Hoffmann also provides a diagram for knitting the heddles based on this piece:
To aid the knitting of the heddles, I drew simplified diagrams for the heddles for each
heddle rod:
Figure 1: Heddles diagram for the upper or “1” rod.
Figure 2: Heddles diagram for the middle or “2” rod (the opposite of the natural shed).
Figure 3: Heddles diagram for the lower or “3” rod.
To reproduce the broken diamond twill pattern of the extent fabric fragment above,
the order of the heddle rods is a sequence of ten sheds: N-3-2-N-1-2-3-N-2-1, where “N”
designates the natural shed and “1”, “2” and “3” the shed created by pulling forward the
respective top, middle or bottom heddle rod.
Figure 4: Close-up of a piece of the woven fabric.
Bibliography
Hoffman, Marta (1974) “The Warp-Weighted Loom: Studies in History and Technology
of an Ancient Implement”, Robin and Russ Handweavers.