Proportional Wheel Scale (6-in)
Tired of guessing what size to enlarge and reduce your patterns? This handy Proportional Wheel makes it easy to get the exact calculation within seconds.
Simply measure the height or width of your pattern image (Original Size) and then measure the corresponding dimension on your project material at the size you want the pattern to become (Reproduction Size). To get the percentage of enlargement/reduction, find the pattern measurement on the Original Size wheel and then rotate it to align with the project board measurement on the Reproduction Size wheel. The Percentage to Enlarge/Reduce will be displayed in the window.