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Making a Jacquard Loom Controlled from an iPhone

via Retro Tech Journal

Weaving on a loom is fun. I gave my son a simple loom for Christmas, and he wove an entire scarf on Christmas Day. This got me thinking about building a computer controlled loom, maybe one that could weave any pattern imaginable. I liked the idea of taking software back to its very origins with Jacquard and the original Jacquard Loom. I also new there’d be lots of interesting design challenges.

At the heart of the loom is a long row of cams sitting on a square shaft. In order to not have this giant row of cams jamming up horribly, the cams would have to have almost no load. The square shaft locks most of the cams in position but has one section that can rotate to spin a single cam. The main idea was to have the cams not do the lifting and lowering of threads directly, but to have them shift some hooks back and forth. If the hook was over a bar, then the bar could do the work of raising and lowering the threads.

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