Yes. It’s a bit time-consuming if you have a complicated pattern, but it is easy to do.
- Make sure that you have all of your lines on your pattern connected. Because Seamly works on dependencies, you can’t find a line that was created after you started the one you want.(you’ll understand in a minute if you don’t now)
- open a new pattern piece.
- Going clockwise, from point to point, make the length and angle line of your pattern piece match the one you want to mimic in the original. For example, in the pants pattern attached, B-B1 is line A18-A19 on my draft. If a line gets flipped or mirrored, simply add 180 to your angle line.

for the curves: B7-B14 is the same as A6-A5+A5-A26 with the blank line selected.
To match the curves, you are using the same lengths from your original
That’s it. You may need to get creative to hide some guidelines if your pattern is tricky, but you’ll have a clean copy to work from.

