WPI YPP - compare yarns

Learn to compare yarns to find new favorites or to substitute yarn in patterns.

Understanding the WPI (Wraps per Inch) and YPP (yards per pound) methods of identifying yarns is essential for machine knitters.

Do you have a yarn stash with mystery yarn? Use these methods to select and design patterns to put your stash to use!
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Posted by Sue Jalowiec on 12/20/2012 at 5:32 AM | Categories: Machine Knitting Tutorials - Yarn on Cones -


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