I like to use the center-increase triangle in the seamless construction of this jacket:
You can join this knitalong any time between now and November 30, by following the instructions here. Because I am starting to send out instructions already, I wanted to set up this blog post to support a very important element in the construction, and teach you this technique with visuals.
I always use the kfb (knit in the front and back loop of the same stitch) to increase from one stitch to 2 stitches. This increase takes place in the center of the triangle. In the pattern you will receive instructions to remove the marker, kfb, then place the marker–this marker identifies where you will kfb on the return row.
However, I prefer for you to learn to do this without the marker, and read your work. This will assure that you will not deviate from the lovely straight line that is formed as you execute these kfb instructions in precisely the correct place.
The kfb creates a pair of stitches that are joined “at the hip.” They feel differently than the other stitches on your needles, because they are connected, with one of the two being a half stitch that does not reach down into any other stitches in rows before. You will always execute the kfb in that half stitch created in the previous row. Here’s how it looks close up:
Try to practice doing this without the marker, by reading your work, and it will liberate you from the tediousness of removing the marker and replacing it. There is also less chance for you to make a mistake, because by looking for that half stitch from the previous row in which to increase, you will be assured that you are increasing in the correct stitch and that everything lines up.