This episode covers all the things you could and would want to measure and all the ways to do it. We start with WPI, then TPI (for single and ply), twist angle, grist, and then end with non-mathy, non-technical intuitive measuring.

Feb 10, 2020 · Measuring wraps per inch (WPI) and twists per inch (TPI) can be two of your absolute most useful measurements to take when spinning. I consider them a foundational measurement to take, especially if you’re a technical spinner …

WPI is a quick, easy, and imperfect way to measure yarn. Jacey walks you through how to do it, how not to do it, what it can tell you, and what it can't.

Jul 25, 2023 · TPI stands for twists per inch, which refers to how many times the yarn has been twisted per inch of length. The higher the TPI, the tighter the twist and the stronger the yarn. TPI is especially important when choosing yarn for projects that require durability, such as …

May 20, 2022 · Regardless of how you spin or what equipment you use, wraps per inch (wpi) can be measured for most yarns. Wpi is meant to give a rough idea of yarn weight—not its physical weight but its category such as lace, fingering, bulky, and so on (download the Craft Yarn Council’s Yarn Standards Table).

Jun 3, 2012 · CPI And WPI Measuring System. In knit fabric, yarn is measured in the course and Wales direction. When CPI means the yarn is in course per inch and WPI means Wales per inch of the knit fabric. Measure the CPI & WPI with the magnifying glass setting multiplier: The following are the measuring steps of CPI and WPI with the magnifying glass. They are-

20 signifies "20 threads per inch" =.050 pitch ( 1 divided by 20 ) or if you are measuring in metric. it should be 1.27mm. link to Thread Identification page. The descriptions, illustrations, specifications, dimensions, and part numbers are subject to change without notice.

Apr 29, 2015 · Here are two terms that spinners toss around: twists per inch (tpi) and wraps per inch (wpi). They mean very different things. I’m sure that spinners who don’t live in countries hopelessly mired down in the English measuring system (oh how I envy you) would use twists per centimeter and wraps per centimeter.

As a spinner, I use wraps per inch (wpi) often. If I do a good job of measuring wpi, then the square of wpi is the grist in yards per pound. And the twist factor times times wpi equals required twist in tpi.

The abbreviation TPI commonly stands for Threads per Inch, a unit of measurement that indicates the number of threads in a linear inch of fabric or material, often used in textiles and manufacturing.