This is the 15th year of continuous daily publication for 365Caws. All things considered, it's likely it will be the last year as it is becoming increasingly difficult for me to find interesting material. However, I hope that I may have inspired someone to a greater curiosity about the natural world with my natural history posts, or encouraged a novice weaver or needleworker. If so, I've done what I set out to do.
Showing posts with label countermarch loom. Show all posts
Showing posts with label countermarch loom. Show all posts
Friday, March 1, 2024
Higher Mathematics
Day 140: Some technical explanations are in order here, but I will spare you the higher mathematics which woke me at 3 AM and kept me occupied until I finally relented and got out of bed. First, looms like my old one form sheds in one of two ways: they are either rising-shed, in which one layer of threads is raised as the other remains horizonal, or sinking-shed, in which one layer remains horizontal as the other is lowered. On the other hand, with a countermarch loom like Max, the shed opens in the middle, one layer rising as the other sinks simultaneously. Why does this matter? In both rising-shed and sinking-shed operation, there is a certain amount of friction and resistance on the weft as it is beaten into place. On a countermarch loom, it has a clear path and requires very little force by comparison. I simply bring the beater back, and the shed accepts the weft with no particular energy expenditure on my part. Owing to this bit of mechanics, the weft beats tighter, requiring more throws to achieve an inch of cloth. For Max's first piece, I warped for my default sett of 15-16 ends per inch (i.e., across the width of the fabric). However, 16 throws yields only 5/8" of cloth, as opposed to being balanced (16 epi:16 throws) on my old loom when using this fiber. In order to achieve a balanced weave with the same number of ends and throws per inch on Max, I need to make some adjustments. I promised to spare you the math, so just suffice to say that I think warping at 20 epi will bring the weave into balance, or as they say, "close enough for gov'mint work." This is particularly important when square motifs are desirable as they are in most overshot. As for Max's operation, he is an absolute dream! I knew that a countermarch loom would be quieter, but I had not expected the actual weaving to go any faster or to require less effort. In fact, I find myself referring to Max as "gentle" as our relationship develops. I needed that.
Labels:
countermarch loom,
Max,
sheds,
vertical herringbone,
weaving
Thursday, February 15, 2024
Colour Play
Day 125: While I never need an excuse to play with bright colours, Max has provided a perfect excuse to go hog-wild. You may recall that a couple of months back, I wove a pattern gamp using multiple threadings and treadlings in combination. It gave me a visual catalog of possibilities for future projects, a handy reference for patterns I might like to use together. A colour gamp works in much the same manner, demonstrating how colours interact with one another where weft crosses warp. I've been promising myself to weave one for years, but the idea was invariably back-burnered by something else. Max needs a fairly simple project for his inauguration since adjustments will need to be made to balance the shafts, so I thought, "Why not weave a twill colour gamp?" I'm making it wide enough to be towels (very colourful towels, mind you) with 16 threads each of 15 different colours. I will cycle the weft through the same sequence every 16 throws in a pattern called "vertical herringbone." The optical effect should be dazzling, blinding, verging on psychedelic, and just a whole heck of a lot of fun for a colour lover like me.
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