I'm trying to create two even lines that follow this roughly drawn curve (in red) here:
Here is a rough example of how I want the lines to look, only spanning the entire length of the curvy line above. I made these lines by using envelope distort on 2 lines, and then copy pasting a flipped one below.
This method is obviously kind of obtuse though. I'm totally stumped as to how to accomplish this in an easy way. Any tips?