Andrew Lewis ■ Illustrations by Julian Honoré/p4rse.com
You will need
Thick cardboard cut to 10" square
Utility or craft knife
Pencil, ruler, tape
Finding the center of a circle is easy when you have the right tool. This cut-and-fold cardboard center finder is ideal for all those fiddly measuring jobs.
1. Measure and mark.
On your 10" square of cardboard, use the ruler and pencil to mark a diagonal line from the bottom left corner to the top right corner. Mark a vertical line ½" from the left side, a horizontal line ½" from the bottom, and another horizontal line 1" from the bottom.
2. Cut.
Using your utility ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.
