Last night I was pressing a 15mm (5/8″)* fold into a piece of fabric. At least, I think the fold was 15mm (5/8″) deep – I was eyeballing it. Because, you know, dragging my behind across the room for a tape measure was not an option.
Hmmm, I thought. How can I be so sure of my 15mm? And could others be sure, too?
Time for a little game! Below are four pieces of fabric. One of them is pressed over by 15mm. The other three are pressed over by incrementally different widths. Which of the four options do you think is the 15mm (5/8″) fold? Leave a comment and see if you can eyeball 15mm! Now, shush with your protestations that computer screens distort pictures. It’s just a bit of fun, innit? I’ll let you know if you were right, all in the fullness of time.
Rock and roll, my friends, rock and roll.
*For beginner Sewists, 15mm (5/8″) is a fairly standard seam allowance or commonly used measurement in dressmaking. You’ll often find a groove on the throat plate of a sewing machine that is 15mm (5/8″) away from the needle.
STOP PRESS! Another Australian Pattern Pyramid has gone live over at Tingled Fangers!