Originally Posted by Youngblood
Yep. My problem with sewing smaller hems is that I don't have a straight stitch machine, it is 7 mm zig zag. I have a straight stitch presser foot but that doesn't solve my issues with the location of the feed dogs and the opening on the face plate. If I try to sew this light weight slippery fabric too close to the edge, bad things happen... the needle tends to pull the fabric into the machine. But I only sew proto types, so I just cuss and fuss and do the best I can.
That's why the technique is shown as using the normal seam allowance and them trimming the seam. It is a pain to do on production which is why many manufactures use serging or marrow machines. Plus, they have fancy schmancy binding attaching machines and special heat sealing cutters. Frequently on mass commercial items, the seam binding is put right over a raw edge, specially in the really cheap lines of goods. The binding is put on as the seam itself is sewn.