Crease Pattern Challenge 037

Crease Pattern Challenge, Origami

Are sheep sacred in Japan? Don’t get me wrong, I’m basically ok with sheep. Crease Pattern Challenge 91 is a spectacular ram by Naoto Horiguchi. But that’s pretty far off, and, between this and Challenge 24, I’m tired of basic sheep with fairly tricky puzzle crease patterns. Crease Pattern Challenge 37 is Hideo Komatsu’s Sheep.

OTMCP_037 - SHEEP - KOMATSU (101) OTMCP_037 - SHEEP - KOMATSU (102)

OTMCP_037 - SHEEP - KOMATSU (103) OTMCP_037 - SHEEP - KOMATSU (104)

That’s not to say it isn’t a good model. The body is well done, and I especially love the sheep’s sheep face and sheep ears. However, I ended up screwing this up a few time before folding it correctly. Luckily, it’s diagrammed a little later in Issue 105. I folded that first and figured out a couple of things.

KOMATSU - SHEEP(103) KOMATSU - SHEEP(102)

The biggest thing I learned is that the reference lines and points on the crease pattern are extremely close to ones that are easier to determine than the real points (like a line very close to something simple to find, like a quarter line). In some models, a slight shift like this might end up ok, with only a slightly thinner or fatter model. But these lines link up with each other and have sinks that need more precision. Specifically, the head will be much further off than it should be without the exact reference points.

I also found that there was a cool locking mechanism in the middle inside (which I didn’t get in the crease pattern version) and why the crease pattern version is useful. The final model’s body has large, flat sections representing wool. The diagrammed version has many more fold lines crossing these areas to determine the intersection points. The crease pattern sheep is a lot cleaner in these areas.

KOMATSU - SHEEP(104)
Diagram Lock
OTMCP_037 - SHEEP - KOMATSU (104) OTMCP_037 - SHEEP - KOMATSU (105)
My Incomplete Lock on the Crease Pattern
OTMCP_037 - SHEEP - KOMATSU (106) KOMATSU - SHEEP(105)
OTMCP_037 - SHEEP - KOMATSU (107) KOMATSU - SHEEP(106)
Left: Crease Pattern; Right: Diagram

Crease Pattern Challenge 028

Crease Pattern Challenge, Origami

Origami Tanteidan Magazine #82 is a special issue that mainly has crease patterns. So Crease Pattern Challenge #28 is actually several models split into 6 sections. I forgot whatever spiel I had for this, so direct to it I guess.

No.01 starts things with a bang: it’s A Crab and Its Kid by Toshiyuki Meguro. I had quite a bit of trouble with the reference points. I got quite a few, but, there are so many, I ended up estimating more than I knew. Such a large scale model ends up pretty forgiving, but mine (particularly the major shell) isn’t as sharp as possible.

otmcp_028_01-crab-and-kid-meguro-101 otmcp_028_01-crab-and-kid-meguro-102

otmcp_028_01-crab-and-kid-meguro-103 otmcp_028_01-crab-and-kid-meguro-104

I hope my pictures show this well enough. There are 5 baby crabs under the main crab (it’s all one large square). Just getting that many points is fascinating, and they make a really neat model.

otmcp_028_01-crab-and-kid-meguro-105 otmcp_028_01-crab-and-kid-meguro-107

otmcp_028_01-crab-and-kid-meguro-109 otmcp_028_01-crab-and-kid-meguro-110

No.02 is a Giraffe by Hideo Komatsu. I think this is my favourite model in this set. It’s a little trickier than it looks, which makes it interesting, but I think I like it just because the giraffe is endearing.

otmcp_028_02-giraffe-komatsu-102 otmcp_028_02-giraffe-komatsu-101 otmcp_028_02-giraffe-komatsu-103

03 is Satoshi Kamiya’s Dragonfly 1.1B. He always has great models with special details. The main feature with this one is the dragonfly’s banded tail. Having the tail along with four wings, six legs, and a detailed face (his is much better detailed than mine, by the way) is a little ridiculous.

otmcp_028_03-dragonfly-1-1b-kamiya-101 otmcp_028_03-dragonfly-1-1b-kamiya-102

otmcp_028_03-dragonfly-1-1b-kamiya-103 otmcp_028_03-dragonfly-1-1b-kamiya-104

otmcp_028_03-dragonfly-1-1b-kamiya-105

No.04 has two models by Takashi Hojyo: Un objet d’un poisson 5 (Pterois lunulata) and Un objet d’un poisson 11 (Jellyfish). These are pretty special, because he tends to do animals in a more traditional way than his human models. These two incorporate the methods he uses for humans to make an artistic lionfish and jellyfish. They kind of feel minimal but are very detailed. Unfortunately, I may have again missed a polarity switch on the lionfish (I tend to do with his models).

otmcp_028_04-objet-hojyo-102 otmcp_028_04-objet-hojyo-103

otmcp_028_04-objet-hojyo-104 otmcp_028_04-objet-hojyo-105

otmcp_028_04-objet-hojyo-106 otmcp_028_04-objet-hojyo-107 otmcp_028_04-objet-hojyo-108

otmcp_028_04-objet-hojyo-109

No.05 is a set of little houses, listed as Japanese Roofs, by Tomohiro Tachi. These really aren’t the kind of models I like much, so I just Xeroxed them and folded them from those. They are neat having slopes with direction changes. Also, I have a red filter that I never get to use.

otmcp_028_05-japanese-roofs-101 otmcp_028_05-japanese-roofs-103

The last model, No.06, is a Domino Cube by Ushio Ikegami. There are several crease patterns here, but I’m only doing the first one. He tends to come up with interesting methods to fold seemingly impossible models that are aesthetically fairly boring (to me at least). He previously made a Koch’s Snowflake Curve in Challenge #13. These are pretty neat (if I had colour change paper, the upper and lower cubes would be different colours), but they’re not really my thing.

otmcp_028_06-domino-cube-ikegami-101 otmcp_028_06-domino-cube-ikegami-102

otmcp_028_06-domino-cube-ikegami-103 otmcp_028_06-domino-cube-ikegami-104

otmcp_028_06-domino-cube-ikegami-105 otmcp_028_06-domino-cube-ikegami-106

Crease Pattern Challenge 021

Crease Pattern Challenge, Origami

So, this is an interesting one. Crease Pattern Challenge #21 is Hideo Komatsu’s Lion in issue 75. I kept screwing up the reference points (there were several close ones that I kept mixing up) and, after trashing a few papers, made a copy of the pattern and folded that.

otmcp_021-lion-komatsu-2 otmcp_021-lion-komatsu-1

otmcp_021-lion-komatsu-3

This seems mostly correct, but there is a large problem with the mane. Luckily, there are diagrams of this model in Works of Hideo Komatsu, so I folded that one for reference.

komatsu-lion-1 komatsu-lion-2

komatsu-lion-3 komatsu-lion-4

komatsu-lion-5

Apparently, I just didn’t flip the front of the mane back. The fold back line isn’t actually in the crease pattern (it would probably be pretty confusing to include, so it’s one of those interpretive parts). In any case, I’m counting my less detailed, more derpy lion. I also found out I already folded this model (99% sure from diagrams), so here it is in the kind of paper I usually use.

komatsu-lion-7 komatsu-lion-6

komatsu-lion-8