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Cahoonas
Paperfolder
Artist | Hobbyist
United States
Update: I am currently in professional school so my post frequency will probably slow down!


I am an origami hobbyist currently interested in origami design. Whenever I have some free time, I try to improve these skills through the practice of various origami techniques and designing origami models. My designs are often based on whatever strikes my interests, such as video games, television shows, and objects in real life that are not commonly done. This gallery is my way of having my creations and some of my notes online, as well as a way to share with others what I have made. I occasionally accompany my designs with at a crease pattern, and in rare cases a guide or instructions.

Occasionally I'll post designs by other artists that I've folded as interest pieces, which will be indicated in the description and in brackets in the title.

Don't take anything I do seriously. =D


WIPs, alternate views, and extra-silly stuff you don't see here go in my Tumblr:

cahoonas.tumblr.com


Photos, angles, or refolds can also be found on my Flickr:
I just found out my monster hunter origami has been featured on Capcom's blog. If you've come to this page from there, hello visitors! If not, hello anyways!

Activity


Red Blood Cells by Cahoonas
Red Blood Cells
Each model folded from an uncut 9" square of red pacon 

A couple of red blood cells. Relatively simple in structure, I wanted to see if I could replicate a biconcave shape that was fully enclosed. This meant that popping out the curved ring around the edges was a tricky task. I'm pretty happy with how it turned out.

If you want to give this model a try, I created some photodiagrams here: fav.me/d8kixes

 
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Vertebra CP by Cahoonas
Vertebra CP
Crease pattern for my vertebra model: Lumbar Vertebra

Built on a 16x16 grid, if you collapse the base, it comes out pretty boxy. The rectangular box that would eventually be the vertebral body is 2x1.5x1.5 squares. I truncated the corners of this rectangular box to round out the top/bottom views. The pleats at the top of the square wrap around and tuck into two triangular slots inside the box.

Flap-wise, this crease pattern includes 3 flaps per side:
Spinous process: long flap pulled from the lower corners of the square. The two flaps wrap around the foramen and combine via improvised tab-slot
Transverse process: pulled six units up from the base of the square at the sides
Superior articular process: a middle flap embedded in the transverse process flap
Posterior articular process: technically not included here due to it being less prominent in some vertebra. I used a elias stretch on the long spinous process flaps to get a 1 square long flap for this.

I've tried folding the thoracic and lumbar vertebra from this base; I preferred the lumbar.

This is what the crease pattern collapse looks like: imgur.com/a/mYghu
In the last image, the flap assignments are:
Bottom two flaps: spinous process, these flaps come together
The two short stubby flaps right above that: are actually two flaps embedded inside each other. outer flap is the transverse process. Inner flap is pulled out to make the superior articular pillars
The rectangle above that: vertebral body
The rest of the pleats above that: extra paper that is wrapped around and tucked inside the body to enclose the vertebral body.
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Lumbar Vertebra by Cahoonas
Lumbar Vertebra
Folded from one 16" uncut square of off-white Kozo paper

So I've been studying anatomy and had quite early on come across the spine. I found the spinal segments, or vertebra to have quite interesting shapes and tried my hand at recreating it in paper. There weren't that many spine origami models out there (even less that are human) and thus tried my hand at recreating a relatively accurate representation of this bone. Of course, the challenge was to recreate a relatively complex and curved organic structure using only a single uncut square. Since the vertebral body was a portion of the model I wanted to keep 3D and fully enclosed, I designed this model from a box pleating approach. The vertebral body was formed from a 3D rectangle with the corners truncated. Aside from that, the rest of the flaps were shaped around the vertebral foramen and come together again at the spinous process. I'm actually surprised with how well the whole thing holds together. Aside from the truncated corners and the vertebra body being a little tall, I'd say I got as close to the real thing as I could have.

Separate and additional pictures: www.flickr.com/photos/cahoonas…
Crease Pattern: Vertebra CP
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Ryujin 3.5 [Satoshi Kamiya] by Cahoonas
Ryujin 3.5 [Satoshi Kamiya]
Folded from a 6 foot square of kraft paper
Crease pattern found in Satoshi Kamiya's book "World of Supercomplex Origami"

Hmmm, where to start with this one? This is Kamiya Satoshi's famous super-complex dragon, the Ryujin 3.5, folded from a 6'x6' square of kraft paper (actually two 6'x3' rectangles taped together). Ever since I saw Kamiya Satoshi's own fold of his dragon, I hoped to one day successfully replicate his model. However this was several years ago and at the time I was unsure if I would ever have the ability to do so. In the mean time, I began designing my own designs. Fast forward to December 2013, where Mr. Origami ( www.flickr.com/photos/danielbr… ) offered to guide those interested in the techniques required to fold this model. I took him up on his offer and many test folds later, I'd say I reproduced a recognizable model!

I originally started this model in January 2014. With a new roll of kraft paper, the official crease pattern, and Mr. Origami's guidance, I began folding both halves separately from 6'x3' rectangles.  As you can probably guess, folding and shaping the scales took the most time, and even became mind-numbingly tedious at times. Work on this model progressed off and on throughout the monthes. After both halves were completed, I joined the two halves with tape and ran wires through the model such that it would hold it's shape. PVA glue was used to close the model. Of course, purists might argue that the use of tape, wire and glue might be taboo in origami. The wire and glue aren't absolutely necessary, but serve an important role for holding the model's pose and keeping it presentable. Additionally, the way the halves are taped together would make a complete square if you were to unfold the model. The kraft paper itself presented a few challenged in terms of thickness. Though it was pretty easy to fold, layers tend to build up around the neck and legs, making it tricky to manage. Also the scale tessellation ended up not being exactly uniform and minor buckling would occur around tight turns around the body. All in all after dozens of hours and tweaking details with MC, I feel this is as much as I can do for this model. 

That's one thing crossed off my bucket list. Though this was certainly quite the interesting project, I doubt I'll be undertaking something of this magnitude in the future! Man, Satoshi Kamiya can sure design his models.

Progress views
Preparing both halves: cahoonas.tumblr.com/post/91143…
Closing and posing: cahoonas.tumblr.com/post/91143…


 Update: He's now on display at the Paper Tree in San Francisco Japantown!
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:iconclone4987:
clone4987 Featured By Owner Mar 20, 2015  Hobbyist Artist
Hey, if it's not a hassle, could you release some pictures of the collapsed bases for the models that you have CP's for? I'm new to crease patterns, and I would love to be able to make some of your paper sculptures
Reply
:iconfairybubblepuppy:
FairyBubblePuppy Featured By Owner Mar 18, 2015  Student Writer
Hey, happy birthday! :D
Reply
:iconcahoonas:
Cahoonas Featured By Owner Mar 19, 2015  Hobbyist
Happy birthday to you too! (if I remember correctly)
Reply
:iconfairybubblepuppy:
FairyBubblePuppy Featured By Owner Mar 19, 2015  Student Writer
Thank you - you did! :)
Reply
:iconlilkity828:
LilKity828 Featured By Owner Mar 18, 2015  Student General Artist
Happy birthday!
       cupcakie 
Reply
:iconcahoonas:
Cahoonas Featured By Owner Mar 19, 2015  Hobbyist
thanks!
Reply
:iconraffypaeng:
raffypaeng Featured By Owner Mar 18, 2015
Happy reminder that you're older now day!
Reply
:iconcahoonas:
Cahoonas Featured By Owner Mar 19, 2015  Hobbyist
wooo!
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:iconartistafrustrado:
artistafrustrado Featured By Owner Mar 18, 2015  Hobbyist General Artist
Spotlight:happybounce:Happy b-day!! Glomp!AirborneHigh-five! i hope you're having a really awesome day! Party:iconcakeplz:Dance!:happybounce:Spotlight
Reply
:iconcahoonas:
Cahoonas Featured By Owner Mar 19, 2015  Hobbyist
Thank you!
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