After you have make sure that the test box is 1″ (inches) using your ruler, layout the pattern according to the number as provided is your pattern diagram.
Cut border line as shown example below. It does not matter which part you cut. As long as each piece will overlap each other.
Glue them together.
Your final output, you will see the pattern as pattern diagram.
Make sure, you get a perfect circle as shown below. If not, adjust your printer setting.
Finally, cut your pattern and its accessories.