Step 14:Fold both left and right edges to the center line.
Step 15: Note that you will now see two dotted lines in the figure below. We will do the same folding at two dotted lines. Now let’s start with dashed line 1.Fold the upper part down along the dashed line(1).
Step 16: Make a crease by folding the right edge of upper layer meet to the top edge.
Step 17: Make a crease by folding the left edge of upper layer meet to the top edge.
Step 18:We’ll get two perpendicular creases as shown in the figure below. Now Unfold, and we’ll do the same at the dotted line 2 shown in step 15.
Step 19:Fold the bottom part up along the dotted line.
Step 20:Make creases on upper layer by folding both left and right edges meet to the bottom edge.
Step 21:Unfold.
