Monthly Folding Challenge - September 2009

Sunburst · Last edited by Sunburst on Wed Sep 02, 2009 6:15 am; edited 1 time in total

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!
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snowblue · Newbie Joined: 10 Mar 2008 Posts: 37 Location: China

Triangle!! that will be fun
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Cephalopod · Super Member Joined: 12 Apr 2009 Posts: 137

Fun challenge! I'm so used to thinking in terms of a square...this would be difficult for me if I could join in.
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legionzilla · Posted: Wed Sep 02, 2009 1:02 am Post subject:

hmmm...interesting challenge, though I'm too used to squares...I will try though...
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Fishgoth · Senior Member Joined: 15 Feb 2006 Posts: 282

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
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Wizmatt · Posted: Wed Sep 02, 2009 4:23 am Post subject:

Great choice of challenge!
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elanman · Posted: Wed Sep 02, 2009 9:27 am Post subject:

Another example of a model made using a triangle, here is Robert Lang's Gerbil.
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Ondrej.Cibulka · Posted: Wed Sep 02, 2009 2:35 pm Post subject:

Fate of Pompeii

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Nathan · Posted: Wed Sep 02, 2009 4:28 pm Post subject:

Hermit Crab
Folded from an isosceles right triangle

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Jonnycakes · Buddha Joined: 14 Jun 2007 Posts: 1312 Location: Ohio, USA

Very clever, Ondrej! I have started on a couple of ideas, but nothing solid yet...can anyone say hex-pleating?
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qtrollip · Posted: Wed Sep 02, 2009 5:42 pm Post subject:

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!!!
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origamimasterjared · Buddha Joined: 13 Aug 2004 Posts: 1630

White Dove

From half of a square.
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firstfold · Posted: Thu Sep 03, 2009 2:44 pm Post subject:

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

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firstfold · Posted: Fri Sep 04, 2009 7:12 pm Post subject:

Double Flippy Flippy Faced Polyhedra

Folded from a single equilateral triangle

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grizzly man · Posted: Sat Sep 05, 2009 1:00 am Post subject:

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