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Saturday, March 24, 2018

Enlarging/Reducing Patterns, a mini tutorial

If you are like me, at some point in time you'll have to resize a block or an applique design to make it fit what you need.   The table below will help you to figure out how to do that.

To use this table:
Locate your current block size down the left hand column and then across the top find the size that you want your new block to be. Follow the column down and the row across till they meet and this will give you the amount you either need to enlarge or reduce your original pattern.

The table below gives the percentage that you need to enlarge/reduce your pattern.



C
u
r
r
e
n
t

B
l
o
c
k

S
i
z
e


1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
12"
1"
100
200
300
400
500
600
700
800
900
1000
1100
1200
2"
50
100
150
200
250
300
350
400
450
500
550
600
3"
33
88
100
133
188
200
233
288
300
333
388
400
4"
25
50
75
100
125
150
175
200
225
250
275
300
5"
20
40
60
80
100
120
140
160
180
200
220
240
6"
17
33
50
67
83
100
117
133
150
167
183
200
7"
14
28
43
52
71
88
100
114
128
143
152
171
8"
12
25
37
50
62
75
87
100
112
125
137
150
9"
11
22
33
44
55
66
77
88
100
111
122
133
10"
10
20
30
40
50
60
70
80
90
100
110
120
11"
9
18
27
36
45
54
63
72
81
90
100
109
12"
8
17
25
34
42
50
59
67
78
84
93
100
13"
8
15
23
31
38
46
54
62
77
85
92
100
14"
7
14
21
29
36
43
50
57
64
71
79
86
15"
7
13
20
27
33
40
47
53
60
67
73
80

My apologies for the entire table not showing up in this blog post.   

If you click here you can download the full scale for resizing patterns for free.

To be able to enlarge or reduce to any size that is wanted (if it isn't in the above table) use the basic formula here:
(block size wanted) / (current block size) = (percentage to enlarge or reduce original block)*100

Example 1:
Current size = 4" and you want a 12" block -
12/4=3 -> 3*100= 300%

Example 2:
Current size =12" and you want a 7" block -
7/12=.583 ->.583*100=58% or 59%


Gratitudes:

1. Vacation be a-coming!

2. Getting to meet cousins in person that I've only known online.  =)

7 comments:

  1. Thank you for the link to the sizing chart!! I am trying to figure out the size to make an American flag with the proper ratio of blue to stripes...I don't like this kind of math!!!

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  2. Thank you. Be safe on your journey and have a great time.

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  3. Thank you very much. What a great tool to have on hand.

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  4. This looks cool, will check it out when I have more time!

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  5. Helpful printout, thanks! I know you will have a great family time on your vacation, and it will be so good for you!

    ReplyDelete
  6. Thank you for the link to this chart I'm sure it will come in very handy!!!

    ReplyDelete
  7. Great article, exactly what I was looking for.

    ReplyDelete

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