## What DPI should I use in weaving?

2: WHAT DPI DO I NEED?

DPI | Dent count per 10cm | Recommended Yarn |
---|---|---|

7.5 dpi | 30/10 | 8ply DK and some Novelty Yarns |

10 dpi | 40/10 | 4Ply Sock or 5ply Sport Weight Yarns |

12.5 dpi | 50/10 | 2ply and 3 ply fingering weight yarns |

15 dpi | 60/10 | Fine weaving cottons and linens |

**What does DPI stand for in weaving?**

This depends on if you’ve got a yarn stash already and also what you want to weave. Most looms come with a 7.5 dpi or 8 dpi reed. The dpi stands for dents per inch and basically is the number of warp threads going through a dent (slot/eye) in the reed.

**How do you calculate EPI in weaving?**

Tabby / Plain Weave Tabby, or plain weave, EPI is WPI divided by 2. So if your yarn wraps at 24 wraps per inch, you will want 12 ends per inch in your warp to give space for your weft to pass.

### What is picks per inch in weaving?

Picks per inch (or p.p.i.) is the number of weft threads per inch of woven fabric. A pick is a single weft thread, hence the term. In general, the higher the picks per inch, the finer the fabric is.

**What is dents per inch weaving?**

The number of dents per inch (or per cm or per 10 cm) indicates the number of gaps in the reed per linear width. The number of warp thread ends by weaving width determines the fineness of the cloth. One or more warp threads may pass through each dent.

**How is weaving cost calculated?**

The weaving cost is expressed as paisa /pick/inch/sq mt. The cost of weaving for rapier loom for plain weave 40″ width fabrics = 8 paisa/pick/inch/sq nmt which means that for a 120 inch width fabric the cost will be 24 paisa/pick/mt. For twill weave, the cost = 12 paisa/pick/inch/sq mt.

## How do you SLEY a reed?

Divide the reed into sections vertically. Tie a string (or strings) across the reed that separate it into divisions, as many as threads in each dent. Then when you sley, you put the first thread through the bottom section, the second through the next section (in the same dent), the third in the next, etc.

**How do you calculate the end?**

The basic formula for calculating ending inventory is: Beginning inventory + net purchases – COGS = ending inventory. Your beginning inventory is the last period’s ending inventory. The net purchases are the items you’ve bought and added to your inventory count.

**How do you calculate ends per inch in weaving?**

E.P.I. are ends per inch and is what your warp sett will be. It can be determined by wrapping around a ruler just to touch, don’t smoosh together. Count the wraps and divide by 2 for plain weave, divide by 2/3 for twill because you need more warps per inch to weave a balanced twill.

### What is warp length?

This is done by multiplying the number of ends by the total length, since each end needs to be the full length of the warp. Number of Warp Ends x Total Length of Warp= Total Amount of Warp Needed. So, in our example, the total amount of thread I would need is: 144 ends x 114 inches= 16,416 inches.

**How is yarn cost calculated?**

By taking actual count-wise production rates achieved, consumable cost per kilogram of yarn is obtained. Standard packing material cost per kilogram of yarn is obtained by cost of items used (packing material) in unit packing and dividing by the package weight.

**How to calculate WPI, epi and Sett for twill weaving?**

So if your yarn wraps at 24 wraps per inch, you will want 12 ends per inch in your warp to give space for your weft to pass. Twill weave EPI is about 2/3 of WPI. So if your yarn wraps at 24 wraps per inch, you will want 16 ends per inch in your warp. These are some basic guidelines for how to determine your EPI/sett.

## What does WPI stand for in weaving yarn?

Wpi stands for wraps per inch of yarn, and is used to help you figure out how many ends per inch of yarn to use for your weaving warp. Calculating the wpi of your yarn is simple!

**What is the distribution of warp ends in fabric?**

Sett: the distribution of warp ends in your fabric, usually over one inch (hence epi = sett). Say you’ve just downloaded one of our weaving patterns and you have some yarn in your stash that you think will work. How do you know for sure whether or not you can substitute it?

**How many picks per inch to make a shawl?**

I’ve only made one shawl so far but look forward to many more projects! A couple of things…..it sounds like you are weaving plain weave with that Harrisville and if so, you might want to change the epi to 10, which would help you get 10 picks per inch and balance in your cloth.