The Fitful Flog

March 11, 2006

The Octuple Helix Compass Rose Jar

Octuple Heix Compass Rose Jar

Which is pretty much exactly the same as the previous model, the 8-Sided Compass Rose Jar. The difference is that this one is made from American letter paper (and it could be any size rectangle, really) and that instead of using that ?2/2 section to make the closure, this one repeats that section over and over, until it makes eight helical spirals up the sides.

Well, it more suggests eight helical spirals than actually creates them. Try it out, you’ll see. This is just the CP, but if you’ve successfully folded the 8-Sided model, you’ll be able to puzzle this one out pretty quickly.

I’ll hasten to add that this model squirms uneasily beneath the heel of the conceptual tyranny of 22½°-45°-90° angles.

Drawing this CP put me very much in mind of the Tholian Web episode of Star Trek.

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15 Responses to “The Octuple Helix Compass Rose Jar”

  1. 1
    Eric Gjerde Says:

    Really like this design- keep up the good work. Now I have cool stuff to fold when people ask me to fold something; it’s really hard to fold a tessellation on the fly!

    but these can be folded from anything and look beautiful.

  2. 2
    Origami Tessellations - Octuple Helix Compass Rose Jar Says:

    […] Oschene does it again. […]

  3. 3
    Kevin Chiang Says:

    i have a question for you
    when you posted the instructions for your dollar to the donut…
    when you create a crease do you fold it all the way across the bill or do you restrict it to its side? (the 45 degree angle part)
    the same goes for the steps following it…

  4. 4
    oschene Says:

    The angled pleats on that fold are restricted to the sides. It would get pretty crowded, else.

  5. 5
    Eduardo Says:

    Today I haveve folded the 8-Sided Compass Rose Jar and the Star Vase.
    No problems there.

    I tried folding the Octuple Helix Compass Rose Jar too. I managed to
    make all the creases on an A4 sheet of paper and I could partially
    collapse it. But I could not collapse the spirals. The problem was I
    could not align the two layers of the cylinder perfectly, it seems I
    lacked precision even though I did my best to make all the creases in
    place. Do you have any pointers to get it done?

  6. 6
    oschene Says:

    Hm, it seems pretty accurate on letter paper – I’m guessing this is a scaling issue. With A4, you’ll want to make sure that the print dialog is scaling the page to fit. One way to test this is to see that the middle section is printed in even eighths. It could be that the outside eighths have been shorted a few millimeters. Not a lot, but enough to throw off the accuracy.

    If that doesn’t work, let me know and I’ll scale the drawing and post an A4 version.

  7. 7
    Eduardo Says:

    oschene,

    I?ve actually folded without printing out the CP. But an A4 version would be nice for me to check it out whether I made the creases correctly.

  8. 8
    oschene Says:

    Have you checked the ratio of the central helix? There should be eight rectangles, one by √2+1, with diagonals across them. If the ratio of these is not correct, the model will not close up properly.

  9. 9
    Kevin Chiang Says:

    ok i see
    but what do you use to make the creases?
    just your hands?
    or do you use any tools?

  10. 10
    Eduardo Says:

    oscheme,

    I think the proportions are right. But I can?t get both layers aligned properly… I?ll try to print and fold it again.

  11. 11
    Ricardo Says:

    I’m at work and I’m supposed to not see things unrelated to work (damn call centres) but I couldn’t help noticing such a great design. I’m also a neophite with such complex models and though I’m not unfamiliar with paper folding, I hadn’t had the time to take origami seriously. Where are the instructions to fold this model? It’d be great if anyone could help me with this.

    Thanks.

  12. 12
    oschene Says:

    Hey, Ricardo,

    I used to work in a call center – there’s a story about that, some entries back.

    Start with this model – once you have that, this one will make more sense to you.

    Hang tough. Customer service skills translate to every other field you can think of.

  13. 13
    marcos Says:

    EU GOSTARIA DE APRENDER A FAZER ORIGAMES?
    SE PUDER ME AJUDAR EU AGRADESERIA MUITO.. OGRIGADO….

  14. 14
    oschene Says:

    Hey, Marcos,

    If I were looking to learn origami, I don’t think I’d start here – I’m way too lazy to make simple models or to diagram things understandably.

    I’d recommend trying other sites with better diagrams, like Oriland.

    And then, come back here. This stuff isn’t that difficult, it just requires some seasoning.

  15. 15
    Joan Michaels Paque Says:

    I’ve done a number of similar
    spirals so appreciate your
    accomplishments and your
    explanations. Thanks.

    JMP
    http://www.joanmichaels.paque.com

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