Above is me playing with the 2-thread flatlock on my Huskylock. If you look close, you can see that I almost have a satin stitch. I was following the information provided in the Specialty Techniques book that I have for this machine. I have the machine set on the widest stitch width and the longest length. The needle tension is set at 0 and the lower loop tension was set at 5. I'm using a 14/90 needle with Signature Decorative Spun Polyester in size 30. You can see that I'm not quiet getting a blanket stitch effect.Here you can see that the flatlock now looks more like a blanket stitch. The only setting I changed was lower looper tension was changed to 7. Also, I was using a water soluble stabilizer to stitch on. This worked very well.
Here you can see the final result on the blanket. I was pleased with my first attempt at this technique. This would have looked much better if I had had a heavier decorative thread. Sorry, the pic is a little bit out of focus.
This is the very first time that I attempted using the 2 thread flatlock on my machine. I hope that it will not be the last time.