There are a few things you need before starting: a piece of paper, an Illustrator file, and some basic skills. Here’s how to make a plaid pattern in Illustrator:

  1. Start by creating a new document in Illustrator.
  2. On the left-hand side of the new document, create a rectangle that is twice the size of your paper’s width.
  3. In the top-left corner of the rectangle, draw a line that is 1/8 inch wide and extends to the right edge of your paper. This line will be your starting point for your plaid pattern.
  4. Next, draw two lines that are 1/8 inch wide and extend to the left edge of your paper. These lines will be your finished borders for your plaid pattern.
  5. To create the plaid fabric, start by drawing one line across each border of your rectangle (you’ll want them to be parallel). Then, draw another line across each border (again, you’ll want them to be parallel). Finally, connect these two lines together by drawing a curve (you can use any type of curve you like). Now you’re ready to start sewing!