|1-9-08 updated photo link for move to Shutterfly
4-20-07 Updated link for the new Yahoo
This tip is about a simple hem. You want to turn the fabric under twice and machine stitch it in place. No big deal, right? Then you find that it's a problem, when you come to a corner.
Examples of this: napkins, square or rectangular tablecloths, placemats, patch pockets, casual tops/jackets with side slits...just to name a few.
The problem is, after you've turned the hem up twice on one side, and then turn the hem twice on the adjacent side, that corner is suddenly 9-layers-of-fabric thick.
Presser feet don't like sewing along on 3 layers of fabric and suddenly changing to 9 layers. Needles aren't too happy about it either. More importantly, the bulk on that corner looks bad.
On a patch pocket, you don't have to turn the fabric under twice along the sides and bottom, of course, but you will have an ugly corner where the last turn-under shows a tiny bit of a raw edge [or if you flipped that back so it doesn't show, more bulk].
The web link above has instructions and images that will totally correct these problems...and makes the prettiest mitered corner.