COMO FAZER ALMOFADA

Method of calculating material need for

Canadian smocking -"Arrow head design"

Material need for Canadian 

smocking depends upon 

the flowing things

1. Size of the finished 

material we need.
2. Design we select.
3. Size of the square in the

graph we use for smocking.

For each design I have arrived at 

a general formula using mathematics.

By just substituting the numbers 

in the formula we can find out  the 

width of the material by calculating how

many squares we need in a row. 

We can calculate the length of the

material needed by calculating 

how many squares we 

need in a column.
Diagonal of the square plays a 

great role in this. I will give you 

approximate values diagonals of

the squares we normally use.
Diagonal of a square 

of 2 cm =2 .8 cm
Diagonal will be for square 

of 2 .5 cm = 3.5 cm
Diagonal will be for square 

of 3 cm = 4.2 cm
Diagonal will be for square 

of 4 cm= 5.7 cm

Method of calculating 

material need for a cushion of

"Arrow head design"

 Cushion size 40 cm X 40 cm

Arrow head design

Size of the square

used in the graph= 3 cm

General formula to calculate 

width of the material

No of squares needed in row =

(width of the finished smocked

material needed x 4) ÷ diagonal 

of the square
General formula to calculate

length of the material

No of squares in a column =

(length of the finished smocked

material needed X 2) ÷

Diagonal of the square

Method of calculating the width of the material

No of squares needed in a row =

(40 cm X 4) ÷ 4.2 = 38 squares
Material needed for 38 squares =

38 X 3 cm = 114 cm
Width of the material needed =

114 cm + 2 cm  for 

seams =116 cm

Method of calculating the

length of the material

No of squares in a column = 

(length of the finished smocked

material needed X 2) ÷

Diagonal of the square
No of squares in a column = 

(40 cm X 2) ÷ 4.2 = 19 squares
Material needed for 19 squares =

19 X 3 cm =57 cm + 2 

cm for seams =59 cms.

 

Please note that the number

of squares in a row should

be of even number.
First row and last row are

smocked by joining 2 points

The remaining rows are smocked 

in pairs by the method

of joining 3 points.
In the same manner we can 

calculate the material needed 

for different sizes of  cushions

done with different sizes of squares.

 

http://vani-testblog2.blogspot.com/2010/12/method-of-calculating-material-need-for.html