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  • 1. $ “One-Way” Arrow Copyright 1998-99 Stephen Hecht. All Rights Reserved A dollar bill makes a model 100mm long and 32mm wide. Rectangles of other dimensions may also used, provided they are “considerably” longer than they are wide. 1/4 1. Start with the “ONE” side up. Crease at eights, but not 2. Starting the “point” of the sharply on the middle crease. arrow. Valley-fold. 3. Fold and unfold through Turn over and rotate 1/4 either all layers. Repeat on right. way (depending on which way you want the arrow to point). 4. Pleat. Make the 5. Reverse-fold 6. Reverse-fold the 7. Valley-fold all valley-fold first. Then corners at 45 degrees. long edges, closed- layers on existing bring the mountain- Easiest to bring long sinking at the top crease. fold to the indicated edges to center, corners. Start at intersections. squashing the corners, the open end and then close up. work up. 1/2 8. Reverse-fold other 9. “Point” finished. 10. Begin working corner on existing Rotate to other end on the “flights”. 11. Sink inside. creases, tucking into and turn over. Reverse-fold top triangle on left. The layers. tiny valley-fold at the right edge helps make the tuck easier.
  • 2. $ “One-Way” Arrow (continued) Copyright 1998-99 Stephen Hecht. All Rights Reserved 12. Swing out the raw 13. Reverse-fold. 14. Swing down. 15. Wrap a single ply edges from behind. Repeat on left. around the central Model is not flat at the trapezoid. Easier if “point” end. you open the model up considerably. 16. Pleat. First mountain-fold along bottom of trapezoid. 17. Swing side strips in to Then valley-fold to line up with middle. Model not flat at indicated edge. Unfold pleat top; concave “ear” shapes 18. Valley-fold top layer, and turn over. form. between pleat lines, which lifts the “flights” perpendicular. 19. Continue flipping over 20. Like so. Model is 21. Tuck the new upper the “flights”, squashing a now flat. Turn over. trapezoid inside the one new trapezoid beneath the behind it, which was wrapped one you wrapped earlier. earlier.
  • 3. $ “One-Way” Arrow (continued) Copyright 1998-99 Stephen Hecht. All Rights Reserved 23. Pleat and tuck under diagonal edges. 22. Flip the tail assembly down. Gently bend the model along the vertical with a mountain-fold to facilitate the tuck. Then flatten out to secure. ONE 24. Finished.