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Increase/Decrease Pattern Size

Updated: Feb 11, 2021

Have you ever purchased a pattern and wish that you could increase or decrease the size?


It can be done. Its so easy, you don't have to purchase another pattern to achieve it.


When wanting to increase or decrease the size of a pattern, the width is usually the determining factor for the print percentage you need.


The easiest way to determine the print percentage is to divide the "desired width" by the "actual width".


Examples:

Actual width= 13 inches wide; Desired width = 9" wide

9 divided by 13 = .692 or 69%.


Same formula is used for increasing:

Actual width = 13" inches; Desired width = 15

15 divided by 13 = 1.207 or 121%


When printing you would need to change the "Custom Scale" to the percentage needed in the "Page Sizing & Handling" setting.


You would also use these same percentages when needing to determine the length of zippers. Straps would be unchanged.


If wanting to change ONLY ONE of the dimensions, ie: height only or width only, determine a good center point in the pattern piece and tape the additional inches needed in between. But remember, if you are changing the width, a zipper length may need to be adjusted as well.


Anyone have any questions or any additional information, please free to join in on the conversation in the KM Designs Pattern Co group on Facebook.


Once in the group, click on "Topics" and then "Help and Support".


Happy Thanksgiving!

Stay safe and stay well.


Kris McIntosh

KM Designs Pattern Co




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