Wednesday, September 10, 2008

Chart for Sizing DOWN a Pattern by CarlaC

Origianally posted by LouiesMama (CarlaC ) Thank you Carla!!!
http://www.disboards.com/showpost.php?p=27480030&postcount=1950 My patternmaking book only goes down to size 3, so I used the size charts
in "Simply the Best Sewing Book" by Simplicity.
Their measurements for each size (chest/waist/hip) in inches are as
follows:
0.5 - 19/19/20 (six months)
1 - 20/19.5/21
2 - 21/20/22
3 - 22/20.5/23

If you are using a commercial pattern, you might want to check the
measurements they use for each size just to make sure they correspond (if the
measurements aren't on the pattern, you can find them in the pattern book or on
the company's website). So here are the numbers I came up with:
Size 3 down to size 2 - scaling set to 95%
Size 3 down to size 1 - scaling set to 91%
Size 3 down to size 0.5 - scaling set to 86%
Size 2 down to size 1 - scaling set to 95%
Size 2 down to size 0.5 - scaling set to 91%
Size 2 down to size 0 - scaling set to 86%
Size 1 down to size 0.5 - scaling set to 95%
Size .5 down to size 0 - scaling set to 90%

I based the newborn size 0 on a chest measurement of 18" (this one is for
you, T ). So it seems like (at least for the tiny sizes) the general rule of
thumb is:
Shrinking 1 size - scaling set to 95%
Shrinking 2 sizes - scaling set to 91%
Shrinking 3 sizes - scaling set to 86%

Monday, September 8, 2008

Percentages for scaling up a pattern! By CarlaC (LouiesMama)

Origianally posted by CarlaC (LouiesMama)

I was looking at the size charts in my patternmaking textbook, and it seems
like the larger "tween" sizes increase pretty proportionally. I did the math
to
get the differences in the sizes so that the pattern pieces could be
scaled up
on a copy machine.

to go from an 8 to a 10, scale up
103%
to go from an 8 to a 12, scale up 106%
to go from an 8 to a 14, scale
up 110%
to go from a 10 to a 12, scale up 103%
to go from a 10 to a 14,
scale up 106%
to go from a 10 to a 16, scale up 110%

You'll want
to go to a place like Kinko's that has nice machines so you can
adjust the
scale to whatever you want, and also so you can select a larger paper
size
(I think you can go up to 11X17 in most machines).I haven't tried this
personally (I just do the scaling in my drawing program), but these are the
percentages I would use. This should work for most patterns (not just mine)
that
are free-fitting like the peasant top/dress. With more fitted styles,
keep in
mind that as girls develop, the hip/waist ratio changes, and also
the bustline
changes. So for something like the a-line, scaling up might not
work. Boys are
easy - they stay pretty much the same until they either get
big muscles or a
beer belly !