Why are my zig zas turning into smooth

[Amber5C43]

If I draw a zig zag it will smooth it out round. I got it yesterday so 

[Peru Bob]

This is the Using the Community forum (which is the forum for issues using the forums).
Please tell us what Adobe application you are using so that this can be moved to the proper forum for help.

[Amber5C43]

Illustrator

Moved from Using the Community (which is about the forums) to the correct forum... Mod
To find a forum for your program please start at https://community.adobe.com/

[Barbara Ash · Accepted solution]

One way to draw a zig zag line is to first draw a straight line. Select the line and choose Effect > Distort & Transform > Zig Zag.

You could also draw zig zag lines using the Pen tool. 

If you are drawing the zig zag lines with the Pencil tool, that is a freehand tool and the lines do tend to get rounded, even if you change the settings for that tool.