1, the number of steps of 1-3 in full stitch embroidery is 1/2 stitches. First, thread through the lower left hole of the grid to be embroidered;

2. Insert the needle into the oblique hole, and at the same time, insert the needle out of the hole on the left side in the horizontal direction.

3. Insert the needle into the oblique hole and penetrate the horizontal hole at the same time;

4. You can embroider the required pattern repeatedly in the same way.

To tell the truth, I don't know much about cross stitch, and I don't know if this 1/2 stitch is the half stitch you said, but there are many tutorials about cross stitch in /jiaocheng.html, which should be helpful to you.

References:

/jiaocheng.html