Monthly Folding Challenge - September 2009

Sunburst · Post by **Sunburst** » September 2nd, 2009, 12:02 am

For this month's contest, I decided on a topic that, I hope, should get as much participation as the August contest. Here it is : you get to fold ANYTHING you want... as long as it is folded from a triangle. It's as simple as that.

The rules :
1) Whatever you wish to fold must be from a triangle.
2) The triangle you use can be of any shape, but regular ones are favored (equilateral and isosceles right triangle). It would be best to specify what type you used, too.
3) Only one triangle is allowed per submission.
4) No cuts nor glue, obviously.
5) You may only submit something that you have designed specifically for this challenge.
6) You may submit as many models as you wish.

EDIT : Here's a helpful link for cutting out an equilateral triangle from a rectangle : http://www.serve.com/hecht/origami/diags/gettri.gif

Cephalopod will be the judge of this contest. This said, good luck to all of you (mainly the purists) with this challenge!

snowblue · Post by **snowblue** » September 2nd, 2009, 4:38 am

Triangle!! that will be fun

Cephalopod · Post by **Cephalopod** » September 2nd, 2009, 6:58 am

Fun challenge! I'm so used to thinking in terms of a square...this would be difficult for me if I could join in.

legionzilla · Post by **legionzilla** » September 2nd, 2009, 9:02 am

hmmm...interesting challenge, though I'm too used to squares...I will try though...

Fishgoth · Post by **Fishgoth** » September 2nd, 2009, 9:25 am

Not an entry, but a suggestion for people who aren't sure where to start...

Here is David Brill's horse, a true origami classic. The base he uses is folded from an equilateral triangle, and generates a variety of flaps, which Brill has used for his Lion pack model, and many others. Diagrams are here : http://www.brilliantorigami.com/horse.pdf

Wizmatt · Post by **Wizmatt** » September 2nd, 2009, 12:23 pm

Great choice of challenge!

elanman · Post by **elanman** » September 2nd, 2009, 5:27 pm

Another example of a model made using a triangle, here is Robert Lang's Gerbil.

Ondrej.Cibulka · Post by **Ondrej.Cibulka** » September 2nd, 2009, 10:35 pm

Fate of Pompeii

Nathan · Post by **Nathan** » September 3rd, 2009, 12:28 am

Hermit Crab
Folded from an isosceles right triangle

Jonnycakes · Post by **Jonnycakes** » September 3rd, 2009, 12:33 am

Very clever, Ondrej! I have started on a couple of ideas, but nothing solid yet...can anyone say hex-pleating?

qtrollip · Post by **qtrollip** » September 3rd, 2009, 1:42 am

Jon, it's funny you say that. I was gonna post to challenge you to come up with something that is hex-pleated, but you beat me to it!!!

origamimasterjared · September 3rd, 2009, 8:49 am

White Dove

From half of a square.

firstfold · Post by **firstfold** » September 3rd, 2009, 10:44 pm

I've been trying to figure out what to do with this paper for a long time

Folded from one equilateral triangle of wrapping paper

Dino

firstfold · Post by **firstfold** » September 5th, 2009, 3:12 am

Double Flippy Flippy Faced Polyhedra

Folded from a single equilateral triangle

<embed src="http://www.youtube.com/v/FFoyvhpFT7o&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed>

akugami · Post by **akugami** » September 5th, 2009, 9:00 am

a kingfisher folded from the half of a square

needs some more shaping, for instance at tail, but i found the unusual form of the wings quite interesting