How to make a long origami stairs (page 19)

 

35. Staple the lower right region.   Prepare to apply two "valley-folds" .

36. Apply two "valley-folds" of the step #35.   Prepare to concentrate on the region encircled with a dotted circle.

 

 

 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22