The Origami Forum

For a long period of time i'm tryng to fold this diagram...
The problem is in Part V (Jack) on the fold number 8-9. I can't imagine how to transform a part of the Jack paper, into arms!!!

Please, if someone fold this diagram help me ^^



The diagram can be found here: http://hugo.pereira.free.fr/index.html
The name is Jack in a box!!! ^^
Thanks!!!

Hmm, as I recall it wasn't that hard. It's an Elias strech. If you don't understand that, it's like two points and then sinking it a bunch of times- except that that part is already sinked. You may have to get someone else to explain, I have no idea how to...

Cupcake is correct. The Elias Stretch is comparatively easy to do, but hard to explain, like a petal fold.

1. Try pp 5 -6 here: http://origamiaustria.at/articles/boxpl ... uide_3.pdf
2. Max Hulme has a wonderful one sheet Jack-in-the-box. It is diagrammed in a number of places, including Complete Origami by Eirc Kenneway on p. 31. The instructions are very clear.

My own poor interpretation is: Given that you have created a number of connected flaps:
1. Crease to one side down about one and one half units, then uncrease.
2. Hopefully, you have at least three connected flaps.
3. Slowly separate them, using the crease as a pivot.
4. Push against the spine of the middle flap to create "something like" a 45 degree sink. This will release the closer flap, enabling you to stretch it, pivot on the crease, and fold it down completely.

Much easier done, than said

After you locate and perfect the Max Hulme Jack, then look for the Neal Elias The Last Waltz for a very elegant, bicolor model. This model also depends on the Elias Stretch.

HTH,

- Hank Simon