Confession: for two years of my time at art school, I was a fibers major and I never learned exactly how sewing machines work. Now that I’m seeing this, it totally explains things like incorrect thread tension fucking up your bobbin. H/T BoingBoing for sharing this Wikimedia Commons entry by Russian contributor NikolayS. Nikolay, you’ve made at least one person much less ignorant of the world’s arcane machinations.
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