How to make a 3D origami paper cup II (page 10)

 

17. Apply (3) both "valley-fold" and "mountain-fold" and then (4) another "valley-fold" of the step #14.   Prepare to apply (5) both "valley-fold" and "mountain-fold" (6) followed by another "valley-fold" of the step #14.

18. Apply (5) both "valley-fold" and "mountain-fold" and then (6) another "valley-fold" of the step #14.   Prepare to apply (7) both "valley-fold" and "mountain-fold" (8) followed by another "valley-fold" of the step #14.

 

 

 

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