Monday, April 20, 2009

Pardon the interruption...

My apologies, but Boston Origami is going on a 2-week hiatus. Due to unforseen weddings and holidays (okay, they were foreseen weddings and holidays... I just didn't plan well) my queue of origami pictures is empty. This blog will return on May 4 with something special.

Monday, April 13, 2009

The secret of the small dish

So what exactly is this "secret" we made reference to last week? Look and see, gentle viewer, and all will be revealed...


Here we see the "small dish" from last week, as well as a mirror-image version. (Why a mirror-image version? That's part of the secret, folks.)


Here we see the same two dishes, each with three "flaps" extended. The flaps are normally inserted into the base of the bowl as part of the locking mechanism. However, they can be extended...


...and combined! We are now privy to the secret: the small dish can be combined with it's mirror-image counterpart to create this geometric figure, known as a regular icosahedron. (A regular icosahedron is a solid figure that consists of 20 identical triangles. Geeks like me will also recognize it as a d20.) Such shapes have been studied by mathematicians for thousands of years, and are favorite subjects for unit origami designers.

The icosahedron was constructed from 12 sheets of 5-7/8" square origami paper and stands roughly 5" tall. It was designed by Tomoko Fuse; a folding pattern for it may be found in her book Unit Origami. (Just like last week, huh?)

Monday, April 6, 2009

Rice bowls


Here we have a pair of rice bowls. These bowls are examples of "modular" or "unit origami", a style of origami in which many identical units are created and locked together via folding alone to create the final model. Two different (but similar) kinds of units were used in the creation of these bowls; each bowl consists of 3 of the first kind and 3 of the second kind.

Astute viewers may notice that the bowls are similar in pattern. They are actually from the same pattern; slight changes in the shaping folds of the units account for the difference in shape. The bowl on the left is clearly triangular. The bowl on the right is referred to by its designer as a "small dish" and has special properties. What are these properties? They will be revealed in next week's post.

Notice the interior spiral pattern of the bowls.


Each rice bowl was created from 6 sheets of 5-7/8" square origami paper. Each is approximately 2-1/2" deep and 5" to 5-1/4" wide. The bowls were designed by Tomoko Fuse. The folding pattern for both may be found in her book Unit Origami.

Monday, March 30, 2009

Let That Be Your Last Battlefield

And now, the classic Star Trek episode "Let That Be Your Last Battlefield", re-created with paper cranes.





*sniff* So sad.

The Kirk and Spock cranes are traditional models folded from 4-1/2" squares of standard origami paper. The Lokai and Bele cranes are variations of the traditional model, folded from 5-7/8" squares. (The variation "shrinks" the paper somewhat, making them roughly equivalent to a 4-1/8" square.) The cranes measure 3-1/8" to 3-3/4" from beak to tail, owing to variations in pose as well as paper size. Folding sequences for the traditional model may be found pretty much anywhere; a good folding sequence for the variation may be found at Origami Club under the heading "traditional".

Photography courtest of Danielle Osterweil.

Monday, March 23, 2009

Chickens

Ah, what have we here? Some sort of moonlight tryst?


These chickens are based on a very fun and simple model by Kunihiko Kasahara. Easy enough for beginners, but elegant and evocative.

Which one is the rooster? Which one is the hen? Can you tell? One of the joys of origami is in making subtle adjustments to the pattern. In this case, slight variations in the shaping of the back, tail, and underside create subtle differences in the completed model. Learning these adjustments and variantions is the first step towards origami design.

And now... cyborg rooster.*


"I'm looking for Sarah Connor."

"Ain't nobody here but us chickens!"

The rooster and hen were made from standard 5-7/8" red origami paper. The cyborg was made from 5-7/8" square gold and red foil paper. Each stands about 2-5/8" tall and is roughly 4-1/4" long (minus tail, in the cyborg's case). Folding patterns for a basic hen and rooster can be found in Kasahara's Origami Omnibus.

* Please, no "Robot Chicken" jokes.