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A Rigid Heddle Loom That's right -- a rigid heddle loom. These contraptions were historically -- and in some places, still are -- used as a way of weaving fabric into things like scarves or clothing. But these aren't something you can just pop along to your local DIY store and pick up. With a 3D printer, however, and a couple of screws, and, of course, some yarn, you too can mimic your ancestors who toiled in factories for pittance a day.