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Origomi - Eric Gjerde's weblog on Origami & etc.

Origomi: Eric Gjerde's discussion and thoughts on origami, paperfolding, and tessellations.

This blog has moved to www.origamitessellations.com. Please update your bookmarks! thanks!

Elha's origami blog! Русский оригами Блог!

Thursday, June 30, 2005
Yay! Russian origami bloggers!


Здравствуйте, мой Русский оригами друг!

Sorry that's all just so very wrong, but I have a hard time remembering the proper russian syntax...

-Эрик Джэрди

easy origami links, and blog template changeups...

Wednesday, June 29, 2005
I really, really don't like blogs. web pages I like, but the whole "blog" concept with a gazillion useless tacky bits on the page annoys me.

So since my previous template was geting stranger and stranger in how it didn't work, I'm cheating and just pasting in someone else's nicely pre-made template. my bad. I don't think the 2 people who even look at this site care that much :)

Seriously though, a lot of you keep coming here because you're doing google searches for "origomi" instead of "origami". I'd suggest the following links:

money origami
Bob Nienhuis's money origami page
folds.net easy origami tutorials
Origami Underground (origami models for adults only)
British Origami Society
Marc Kirschenbaum's Origami Page
Monkey.org tells you how to make an origami crane
Meenakshi's huge page of modular origami diagrams
Sarah's (of megatokyo fame) origami site
wannalearn.com's links (many of the same sites, and several more for instructions

Hope that helps you get started down the road to some easy origami folding!

If you are looking for origami tessellations and more complex origami, take a look at the links in the righthand "links" column!

woven paper stone stool

woven paper stone stool
Originally uploaded by R.bean.
R.Bean over at flickr has a bunch of photos from a south korean paper arts museum... quite a few of them are just mindbogglingly beautiful and creative.

this is a woven paper stool- amazingly attractive to me, and it gets my paper freak inner-self motivated.

She's got a whole bunch of really cool photos, so make sure you check them out!


Tiled Hexagon Tessellation v2.0 PDF Available!

Monday, June 27, 2005

Tiled Hexagon Tessellation v2.0 PDF Available!
Originally uploaded by Origomi.
I have a new diagram, released today. It's for my tiled hexagon tessellation. This, and the two PDFs published before it, are licensed under a CC license. Yay for copyleft!

Eleven pages of diagrammy goodness, people. dig in and let me know if it works for you. I really like getting photos from people who've completed one of my folds!

Great origami resource link!

Thursday, June 16, 2005

Saw this in my referrer logs, and it's just chock full of origami linkage. over a hundred, at least. fascinating!

thoughts on regular polygon tilings

So I've been doing a little thinking and exploring about regular and irregular polygon tiling. I'm working right now on some different models depicting the various methods of tiling regular polygons, which honestly is pretty easy to do- I've already done quite a few like this so it's not a challenge, really. I'm looking to have good examples of every type, and to fully depict the possibilities more than anything.

I've also been trying to fold tessellations made up of arbitrary angles. I really shouldn't call these tessellations, as they aren't, but maybe something closer to aperiodic or chaotic tilings. there's a LOT of math involved, most of which I don't understand anymore, so it's slow and irritating going. but I have found some interesting facts which prove and disprove some things for myself, so I figure that any increase in understanding is a good thing.

I'm taking the next week+ off from work, so hopefully I'll have a few quiet moments to sit back and think about some of these things and discover some new things (new to me, anyway. there's nothing new under the sun.)


draft instructions for tiled hex tessellation

Wednesday, June 15, 2005

tiled hex tessellation

1st step: pre-crease paper to preferred level of crease width- I'd
suggest 4 iterations of folding, minimum. (that's 1/2, 1/4, 1/8,
1/16; 1/32 or higher will yield better results).

2nd step: identify "central" hexagon. it should have a two-pleat-
width radius from the center of the hexagon. This "central" hexagon
can be the exact center, or offset if that's what you prefer. actual
location is irrelevant to the final pattern, although symmetry is
usually a preferred result. see illustration.

What we are doing with this fold is creating a valley around every
hexagon shape, which results in a tight grid of hexagons across the
entire paper. we're folding the extra "valley" paper into the
triangular squash twist folds. see illustration.

3rd step: identify the two-pleat-wide "valley" that encircles your
central hexagon. This needs to be folded into a one-pleat-high
mountain fold all the way around; at the hexagonal vertex points, you
will need to fold it into a 3-way intersection. This also requires
that you fold the 3rd angle at the intersections into the same sort
of mountain fold- this should extend straight out from the vertex of
the hexagon. see illustration.


Ralf's Origamipage

Monday, June 13, 2005
I found this link while digging around trying to find out what happened to Helena Verrill's site(s). it's for Ralf's Origamipage, at http://www.origami-online.de/index_de.html.

Take a look at his tessellations- some of them are very, very complicated pieces of work! quite stunning. I really like all his folding with triangular creasing, as I think that the triangle/hexagon combo is really the way to go for great tessellation patterns.

Spread Hex Tessellation With Squashed Triangles

Spread Hex Tessellation With Squashed Triangles
Originally uploaded by gila o.
Gila O. over at flickr took the spread hex tessellation and did a squash twist on all the 3-way crease intersections. it looks great, in my opinion.

Gila is a one-woman tessellation folding machine!

new diagram in progress

Sunday, June 12, 2005
I have a set of diagrams that I came up with for my tiled hexagon tessellation, which makes up the background of this webpage. It's a fold that I always enjoy making, and it's relatively easy to fold as well.

I'm looking to have some folks go through it and let me know what's easy/hard/needs to be fixed/etc. I have a few very nice people who are already doing this for me, and I'd like to get some more feedback so I can try to make a better template to use for future models. If you're interested please drop me a line at origomi@mac.com and I'll send it to you. Thanks!

Gila O's 16 square twist

Originally uploaded by gila o.
Gila folded this over at flickr- she posted 1, 4, 16, and 64 square twisted folds! very fun stuff to fold. And she was nice enough to post it to the Origami Tessellations Group (http://www.flickr.com/groups/origamitessellations/).

thanks for sharing it with us, Gila!

unnamed hexagonal twist tessellation

Thursday, June 09, 2005

unnamed hex origami tessellation, top
Originally uploaded by Origomi.
this is a rather interesting fold, which has a lot in common with some of the star twist tessellations I've done in the past. it's a little different and it gives me more paper to play with in terms of extra folds and pleat lengths.

I particularly like the central triangle twist. that made me happy.

John McKeever's origami tessellations

Tuesday, June 07, 2005
Ravi Apte pointed me out to the origami tessellations of John McKeever. Some of his folds are rather fantastic, and I applaud his use of the Kawasaki Rose as a tessellation process. I just can't fold those to save my life; although I'm not really into flowers much anyway so I think it's OK.

I think my favorite photo of his is this one:

hexagons with triangles

Spread Hexagon Tessellation PDF available!

Monday, June 06, 2005

Spread Hexagon Tessellation PDF available!
Originally uploaded by Origomi.
I just uploaded a NEW diagram of my spread hex tessellation. 6 pages of fun! or something like that, anyway.

Take a peek and check it out if it seems like something that would be interesting to you. It's a much, much easier fold than the star twist I diagrammed first, and it's significantly better in terms of instructions, some drawings, etc.

Hope you like it!

sea creature

sea creature
Originally uploaded by Origomi.
I'm posting this just so you can see I don't always fold tessellations!

... just most of the time :)

owesen's star tessellation (version 1), reverse

owesen's star tessellation (version 1), reverse
Originally uploaded by Origomi.
this is Owesen's star tessellation, version 1. I like the way the folds make a weave pattern on the back. this is just a piece of scrap I was playing with, but I was happy enough with the way it looked to upload it to flickr.


Sunday, June 05, 2005
I received a great email from Danilo in Chile, with a bunch of great photos attached- I'd like to post them but I'm waiting for his permission first. His origami group in Chile has a website, located at www.origamichile.cl. It's very nicely laid out and has a bunch of stellar photos and diagrams. Someone definitely went through a lot of work to put that site together!

Since there seem to be a bunch of people visiting from Brasil and Chile, I'm going to hit up my nice Brasilian coworker to translate some of my documents and web junk into spanish (and Brasilian Portuguese!) for me. Hopefully he can make it a little better than Babelfish does!

I'm plugging away at some new materials, worked a bit on some existing crease patterns for release but I spent quite a few hours today trying to fold arbitrary angles to see what it takes to solve that problem. and the answer is... lots of math! it hurts my head! something that Alex Bateman should be programming, instead of me trying to figure out with a ruler and folding... I did come up with a pretty freaky pattern (to me) which I will scan and post tomorrow. it actually goes a bit of the way towards solving some complex tessellations of the euclidean plane, which really surprised me a bit. Kind of neat, although I got strung up by not knowing where all the "next folds" should go.

Anyway, that's for tomorrow!

technorati tag post

- trying to help technorati fill in some of the blanks on it's tag pages. not that I'm a tessellation freak or anything...

working on a new crease pattern today- well, new to you, not new to me. hoping to put it online tonight if I can find the time- it's FirstSunday crafting day at our house, so the hordes will descend upon our humble abode at 3. Hopefully I can run off and hide long enough to get some work done.

I'm also kicking around some ideas about arbitrary angle folding, but I don't want to say much about it because I'm not sure it's an idea that will work. more info to follow if it's not a total dead end.

hope your weekend is going well!

Origami links!

Saturday, June 04, 2005
I have some new, *great* links to check out. First off is:

Sebastian Kirsch's website. He's got some seriously great material, including a fold that looks suspiciously like a log spiral, or something similar to it. except it's not a spiral... well anyway, it's something that I've been searching for! For about 2 months! so this will hopefully save me from reinventing the wheel.

Jean-Claude Correia more Correia work. I really dig this guy. his folding is just excellent and so very analog. I hope that last statement makes sense to you, maybe it doesn't- but when you work with digital info all day, and you fold very precise geometric things, it's nice to just get a little chaotic with your folding and learn to let go. good stuff.

Hatori Koshiro's blog. His blog is in japanese, but google can translate it for you. He also has linked to Correia, and he's got some very nice folding, too.

And, of course, a stupid plug for my website. www.origamitessellations.com. I had to reload my server today due to some unexpected stupidity but it seems more or less back up to speed. thanks rackspace!

star twist crease pattern - original scan

Friday, June 03, 2005

star twist crease pattern - original scan
Originally uploaded by Origomi.
this is the original scan of the star twist pattern I uploaded yesterday. It's available in it's final version here.

Star Twist Tessellation PDF available!

Thursday, June 02, 2005
I created and uploaded a 3 page PDF of my star twist tessellation.

It's available for download here. tessellation tessellation
Originally uploaded by gila o.
This is one of Gila O's folds, which is a very nice example of one of Alex Bateman's crease patterns. I just keep mentioning that guy today, probably because we had a few email exchanges- his work is kind of stuck in my head!

Gila's nifty stuff is at http://www.flickr.com/photos/87477835@N00/, she has some newly created folds there as well. check out some of her new work and let her know how cool it is!

Paper Mosaics (Alex Bateman's Origami Tessellations)

First off, let me post a link to Alex's new site- it's www.papermosaics.co.uk. Not only does he have some great material there, but he also created a software program that generates tessellations- and it's released under the GPL! (that means free forever, and allows derivative works that also must remain free). That's an excellent thing, and really warms my heart. I'm a huge open source junkie and I always like to see people release things for free rather than trying to lock them up forever.

Which leads me to my next point- Alex has an e-book available at his website, which he graciously provided a gratis copy of (thanks Alex!) It's 3 pounds (which is about $5.40 US currently) and is a very nicely put together document, with a number of good introductory folds and lots of photos. I'm going to give some of them a go once I get a chance to put them on some thin paper.

I've been trying to put together some simple PDF documents with diagrams and photos for a few months now, and it's HARD. I think it's great that Alex is trying to get a little something for his work here, and I encourage any of you interested in tessellations to check it out. It's a way to not only get a little more insight into his thinking and designs, but to also support his hard work in releasing software and folding goodies for you folks to play with.

I only hope the docs I end up releasing come out half as good. I'll be happy!

Alex Bateman's Tess program

Wednesday, June 01, 2005
Alex Bateman wrote a swell perl script/app a while back called "Tess", located here. it works quite well when you run it on a mac (providing you have the appropriate perl libraries installed from CPAN or elsewhere) but it really doesn't run all that well on a windows PC, unless you go through a lot of setup. most of those steps are quite honestly a bit beyond most people, and since I have a commercial Perl compiler environment available to me I made a standalone application that runs on any windows PC.

I've contacted Alex, in the hopes that I'll be able to get him to post it on his site. I can't accurately discover the licensing that he released his program under, so I'm not distributing it to anyone until I get some feedback from him.

Here's a screenshot of Tess running under windows:

currently it still outputs to postscript, and I have no interest in changing that unless I'm sure the licensing supports me modifying anything. I'd probably integrate some sort of ps2pdf type functionality, as PDF is pretty universal. of course, if you're using a mac, it just opens up postscript documents in Preview no problem...

new photo gallery on www.origamitessellations.com

I put up a photo gallery on http://www.origamitessellations.com which is located here. It's about 150 photos of various origami things, most of which I've posted to my flickr account and some which I haven't. I usually end up taking about 20 photos of any given piece, and most of those don't go onto flickr since there's such a tight size restriction.

This is really a testing page for the gallery, as I'm not terribly enthused about it at the moment. I've been using and abusing HTML since about 1993, but it's never been something I've enjoyed a whole lot. I'm looking for a push-button tool that makes things look pretty without a lot of effort!

Anyway, lots of origami tessellations and hexagons, triangles, squares, and stars to check out there. I've got the first page of my draft document done for a piece on origami tessellations! I'm happy to make some progress.