Above, I’ve added an edge turn just under the first corner. It doesn’t matter where you start, but I think you’ll find it a little easier to begin at one of the corners, and then work your way around the edges from there.
I’ve finished drawing in all the corners and edges. Depending on the number of blocks you’ve chosen for your plaitwork, the ribbons might all be joined together in one single big woven loop or be several separate loops all woven together.
11_1st_Edge.jpg12_Finished_Corners.jpg