A four thread construction seam is what you’re
going to use your serger for a good majority of the time. We’re using all four threads.
Tensions are all normal, and both needles. You’re going to find that as you put your
fabric right up to the edge of the foot, it will take it right on in. Use the cutter in
any way, if you want to use the cutter back there or bring it around to the front of your
foot, and that fourth red seam is going to hold everything together. That means you don’t
have to go back and zigzag your edges. You don’t have to go back and seam it. It’s all
done in one pass. This is the one I use the most. It’s where the serger gets left for.
I can just run up to it, sew a couple seams and be back to my sewing machine for other
things like decorative stitches, button holes, top stitching that I might need to do. But all those regular seams, they are looking
awesome and professional by using that four thread serged edge. Here is a great example
of using a four thread stitch for construction seams. This just a little knit skirt for a
little girl. Look, we’ve actually left the colorful threads of the serger, left it as
the hem, just went around with four threads. Little differential feed so this didn’t stretch
out and wave, but on the inside all those seams are serged. How easy is this? There’s
actually a way you can do the elastic waistband with a serger and it works beautiful. You
just fold that back and actually stitch it, and you have a casing, just leave a little
opening when you get all the way through, and you could serge every. This could be done
completely on a serger without any sewing machine in use.