People use pinking shears on the edges of raw fabric as a way to finish the seam and prevent fraying like a straight cut would get.
But I can’t get my head around how/why exactly the zig zag edge makes it less likely to fray. If anything I’d think the little triangle points would be easier to fray.
In: Engineering
Do you know about how cutting on the bias virtually eliminates fraying? It’s cutting on the bias in opposite directions one after another so there are never straight cuts!
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