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Thank you, Peter. It's good to know that somebody is thinking about "my"
problems. Your examples help, but I still need to think about it.
When I give my introductory presentation about card weaving I start out
by telling people that card weaving is so interesting because there is
magic in the cards. I "prove" it to them and then, in the course of the
presentation explain what is going on. However, there are times when I
believe in the magic myself.
Thanks again,
Gudrun
peter collingwood wrote:
Interesting question, Gudrun.
I see I gave a rough rule on P 120,viz: "At a diagonal boundary between
areas of opposite twining, it is the area whose twining is parallel with
that boundary which is raised. So in the bottom half of Fig 103, it is
the background which is raised and in the top half it is the diamond
itself which is raised." I suppose this is telling you where to expect
the raised edge, but not why there is a raised edge!
I found that this effect was more marked with only two threads per
tablet, because here the twining direction of a cord is reversed more
suddenly; see plate 79.
I think of it like this. Imagine a simple narrow band woven entirely
like top right-hand half of the background. If you held up this
unbalanced band when woven, it will want to twist on itself in S
direction. Similarly a band woven entirely like top righthand half of
diamond will want to twist on itself in Z direction. So isn't the
difference in level just where those two opposing twisting tendencies
meet?
Peter Collingwood
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