Hilfe beim Muster erstellen: Zick Zack im Zick Zack Verlauf

Alex,

You need to establish the basic zigzag shape giving the desired number of peaks in one half of a zigzag section and the desired height difference between peaks, and also the desired heights between adjacent peaks and valleys (the downward peaks).

If you wish to work with the zigzag you have created, such as the blue one, you can proceed as follows (always keep a backup of the original artwork), presuming the zigzag lines are expanded to be actual paths with Anchor Points at peaks and valleys (otherwise start by expanding):

If you only have the finished blue zigzag, otherwise see easiest way to start below:

You can recreate the relevant part of the original zigzag line after locking the blue zigzag and starting at the upper peaks/valleys:

1) With the Pen Tool, Click on top of the Anchor Point at one of the blue peaks corresponding to a bottom peak (Smart Guides say anchor when you are within snapping distance), then Click the Anchor Point at the next blue valley to the right, then continue until you have selected all the peaks corresponding to the half section between a bottom peak and the next top peak (for a zigzag corresponding to the white zigzag in the cloth sample this would be 6 peaks and 5 valleys in between;

2) Move a copy of the new zigzag line vertically downwards to snap to the corresponding lower peaks/valleys;

Now you have the basis for one half zigzag section; you can now:

3) Select both zigzag lines, then switch to the Shear Tool, then Click the top left Anchor Point to make it the reference, then ShiftClickDrag the top right Anchor Point upwards until you have the desired zigzag shape height between peaks;

You can now create a whole zigzag section, still with the two zigzag lines selected:

4) Ctrl/Cmd+C to create a copy set, then ShiftClickDrag the copy by the top left Anchor Point to the right to snap to the top right Anchor Point of the original set;

5) Join the coinciding Anchor Points of both the top and bottom zigzag lines.

Now you have one section, and you can create the whole zigzag artwork from that.

Easiest way if applicable, as alternative to 1) and 2) above:

If you still have the pair of original zigzag lines forming the blue zigzag, you can just start from (a copy of) them and cut out the half section of both instead of 1) and 2), and then continue with 3).

If you only have one original zigzag line, you can cut the section of that and then move a copy of it down as in 2).

You can also create the first section in other ways.

One is to start completely over with a desired basic zigzag shape (height difference between bottom and top peaks), along with a desired height of the section or  with a desired height difference between the top peak and the adjacent valleys or similar.

Edit: Addition of alternative easiest way to start if you still have the original zigzag line.