Ask Madelyn: Turned Drafts
Another terminology question. What is a turned draft? I think I have a handle on this one, but some illustrations would not go amiss.
In most weaving literature, “turning” a draft means rotating the draft ninety degrees so that the threading becomes the treadling and vice versa. One advantage to doing this can be to turn a two-shuttle weave into a one-shuttle weave. Another can be to reduce the number of shafts or treadles, i.e., turning a six-shaft, four-treadle weave into a four-shaft, six-treadle weave.
The steps for turning a draft are:
a. Rotate the draft (such as in Figure 1) ninety degrees counterclockwise (Figure 2).
b. Change the former weft symbols in the original treadling into shaft numbers in the new threading (see the threading in Figure 3).
c. Change the former shaft numbers in the original threading to weft symbols in the new treadling (see the treadling in Figure 3).
d. Rewrite the tie-up to place shaft numbers in the positions that were blank, and eliminate shaft numbers in the positions that were formerly filled (compare the tie-ups in Figure 2 and Figure 3).
Note that the warp threads in the original draft become weft threads in the turned draft.
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