Amazon.co.uk Widgets  

Calculating the Correct Sett in Weaving -

Determining the correct sett for your project can be a bit of a challenge. If the same yarn is used in both warp and weft, the following formula should result in a balanced weave structure.
W = Wrap the yarn around a ruler, with the yarn just touching, to determine the number of wraps per inch.

I = Study the weave structure of the pattern you wish to use, and determine the number of intersections in the pattern repeat. Each time the weft travels from the front to the back of the fabric, passing between warp threads, this is counted as an intersection.

i.e. in a tabby weave there are 2 intersections in any given 2 warp threads.

in a twill weave there are 2 intersections in any 4 threads.

R = Determine the number of warp and weft threads in one repeat of the pattern.

Sett = W – ((I * W) / (I+R))

Example:

Yarn: 10/2 Cotton

W = 35

Tabby Weave

I = 2

R = 2

Sett = 35 – ((2 * 35) / (2 + 2))

Sett = 18

Twill Weave

I = 2

R = 4

Sett = 35 – ((2 * 35)/ (2 + 4))

Sett = 23.4

The result can be rounded up to a sett of 24 epi. It is best to weave a small sample, and wash or wet finish it. As each weaver has a different ‘hand’ or weaves with a slightly different tension, the resulting fabric may yield a product. The sett will have to be adjusted to obtain the desired result. Also, depending on the drape or use of the fabric, the sett may be changed from 10% – 30 %. For a looser weave structure such as lacey curtains, the sett would be reduced. For tight weaves, such as upholstery, increase the sett.

Table of Setts
How to Weave a Mirror Warp
How to Use a McMorran Balance
Double Width Weaving

[amazon_search design=”2″ width=”256″ market_place=”” color_theme=”Default” default_search_term=”weaving ” search_index=”Books” columns=”1″ rows=”3″ outer_background_color=”#000000″ inner_background_color=”” background_color=”” border_color=”” header_text_color=”#FFFFFF” linked_text_color=”” body_text_color=”” shuffle_products=”True” show_image=”True” show_price=”True” show_rating=”True” rounded_corners=”False”/]

Weaving Looms

 

Comments are closed.

This page last edited on July 20, 2013

by

Creative Commons License
All Fiber Arts by Paivi Suomi is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
Share

Facebook

Join our new Facebook Group
AllFiberArts Facebook Group

Paivatar Workshops

BEAIVI LOOM WORKSHOPS
Beginner Saami Pickup Band Weaving
Warp a Beaivi Loom Workshop
  • Book Making: Exposed Stitch Eco Journal (Bulverde, TX)
    Carrie Avery brings us a technique featuring a beautiful exposed stitch, meaning the binding is visible from the outside of the book. The result is a rustic and organic book with a hint of romance, ideal...
  • Book Making: The Ribbon Book (Bulverde, TX)
    Join mixed media artist Carrie Avery for an afternoon creating this beautiful hard back book with tied ribbons on the spine. Depending on the materials used, it can be romantic or elegant, and its lovely...
  • Felted Flowers (Coupeville, WA)
    Through the shapes of flowers we`ll discover several sculptural felting techniques in this class. Both with and without using resists, flowers are gonna be born in your hands! We’ll explore how the fiber’s...
  • Wandering with India Flint: New Mexico (Abiquiu, Taos, Santa Fe, NM)
    India will be traveling to New Mexico from her farm in the deep south of Australia to share her wandering spirit and creative gifts with us. She is best known for developing the highly distinctive eco-print,...

Itunes Apps