# Patterned Sprang

Basic (closed) sprang:

1. 2F/B (F/B) F/2B
2. F/B

Open sprang:

1. 2F/2B
2. F/B
3. F/B (2F/2B) F/B
4. F/B

Patterns are read from right to left.

• F/B = pick up one thread from the back, drop one thread from the front
• F/2B = pick up 2 threads from the back, drop one thread from the front
• repeat items in ( ) as needed

If this is confusing, refer back to basic sprang.

## Patterns

The basic and open sprang techniques can be combined to make lacy patterns. Diagonal patterns are best, since the rows of holes are staggered. These directions are for a diamond figure of open holes on a tight background. The sample warp has 20 strands (10 front, 10 back), and the diamond looks like this:

``````      O
O O
O O O
O O
O
``````

Directions:

1. 2F/B (F/B) F/2B
2. F/B
3. 2F/B F/B F/B F/2B 2F/B F/B F/B F/2B
4. F/B
5. 2F/B F/B F/2B 2F/2B 2F/B F/B F/2B
6. F/B
7. 2F/B F/2B 2F/2B 2F/2B 2F/B F/2B
8. F/B
9. 2F/B F/B F/2B 2F/2B 2F/B F/B F/2B
10. F/B
11. 2F/B F/B F/B F/2B 2F/B F/B F/B F/2B
12. F/B
13. 2F/B (F/B) F/2B
14. F/B

All the pattern changes are done in odd-numbered rows. I think of my sprang as growing from the top down, so this explanation reflects that. Holes can be thought of as in columns which skip every other row.

Row 3: To start a hole, treat the warp as two separate sections of basic sprang, ending one section before starting the next. (To start with more than one hole, add (2F/2B) for as many holes as you want.)

Row 5: To add a hole directly to the right of an existing hole, and in the row below, continue normally until there are 5 threads (including top and bottom) left before the hole. Then sprang 2F/B to end the section and add a new hole.

To close a single hole temporarily (while keeping its column), close the hole with 2F/2B.

To add a new hole to the left of an existing hole, after closing the hole, begin the next section of basic sprang with F/2B.

Row 7: Add a new hole to the right, temporarily close the previous holes, add a new hole to the left.

Row 9: Close the rightmost column of holes permanently by continuing the basic sprang until only one thread remains before the hole, then close the hole with 2F/B. Keep the central two holes by closing them with 2F/2B.

Close the left hole with a F/2B to remove the column permanently.

Row 11: Close the right and left columns of holes, keeping the middle one.