Just saying undulating twill brings a smile to my face. Flowing lines, curves, swaying objects are brought to mind.
In an undulating twill, pattern curves are created by having areas of tight interlacement followed by areas of more open weave in the same cloth. This is done by having areas of different size floats. The above weaving has reverses in the pattern causing the curves to reverse back. This creates the eyes.
The inconsistent interlacement may result in uneven wear. A different weave structure should be used if this is a concern. Network Twills have a more consistent interlacement and can give the appearance of curves in the fabric. One of my future projects will involve curves and Network Twills.
Barb-e Designs 
Hi–I have a question I hope you can help with, since you know undulating twill. I’m doing my first scarf with undulating herringbone from pg. 53 in the Davison book (I’m doing pattern II). As I’ve started weaving, the top edge, where the beater hits the fabric, is very wavy (undulating!) Is that normal? In all the other weaving I’ve done, that waviness would suggest that my warp tension is uneven. But it doesn’t seem uneven here and I wondered if it’s just the way undulating twill works . . . Any thoughts?
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I think that your seeing that wave like from some areas being more open (twill floats) and others having a more even weave structure(plain weave like) this is normal I see it in lace weaves I do too. The problem is if this difference gets to great you could begin to have some tension issues. Hope this makes sense. If tension becomes a problem you’ll have to weight the loose warps at the back of loom.
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Thank you!! That helps a lot–just knowing that it isn’t totally messed up. I understand the concept of weighting warp threads so I’ll keep that in mind. So much to learn!!
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