I’ve just used this technique to make the Sew Chic Tia Dress and it works so well I thought I’d share it.
Here are the bodice pieces from the Tia dress. I’ve sewn the upper bodice pieces together and on the centre seam I’ve marked the point 1.5cm from the centre front and lower edge with a dot and finished my stitching there.
Pin the upper bodice to the lower bodice matching notches and the centre front dots.
Stitch each side of the seam separately. Hopefully you can see that I’ve sewn off the edge on each side a little. There is a minute gap at the intersection which will allow the intersecting seams to lay perfectly flat.
In case it’s not clear here it is with some lines to help show the gap. The blue lines show the positions of the edges and the centre front seam, the yellow lines are the stitching. The gap is very small, only the width of a stitch.
Clip seams and trim the point a little. Press one side of the seam open.
Then press the other side open creating a neat fold with the excess fabric at the point.