How to make a 2D origami tank (page 12)

 

21. Apply the "squash-fold" of the step #20.   Prepare to apply a horizontal valley-fold.

22. Apply the horizontal valley-fold of the step #21.   Prepare to apply a "squash-fold" .

 

 

 

1 2 3 4 5 6 7 8 9 10 11 12 13