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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!


offset hex twist (p6m) sketch

Saturday, October 29, 2005

offset hex twist (p6m) sketch
Originally uploaded by Ori-gomi.
I've folded this design already, and I thought I'd try to diagram it since it looks quite interesting. I'm not sure how one really diagrams or documents the folding process for this sort of thing; while it's relatively easy, it's also repetitive and time consuming, so it's difficult to know quite how to approach it.

anyway, this was my starting point. included below is the flickr commentary.

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started working today on a diagram set for a relatively complicated 3.4.6.4 (p6m) tessellation; it's an interesting thing to fold, although rather time consuming. I have a folded model that is awaiting some time to be photographed properly.

the most interesting part of this design, to me, is the fact that while the top side displays very obvious characteristics of the 3.4.6.4 (p6m) tiling design, the flip side of it is the dual fold of this same tiling, exactly! it is pretty neat to see that take shape in one folded pattern.

the top side info is seen here at wikipedia:

Small Rhombitrihexagonal tiling

the dual is seen here:

Deltoidal trihexagonal tiling

interesting stuff, at least for me!

log hex star sketch


log hex star sketch
Originally uploaded by Ori-gomi.
some ideas that I'm working on; here's the flickr post in it's entirety.
---------

playing around with some ideas, and this is one of them... I think I can put together a hexagonal tower of triangles, based on some logarithmic scaling (which shouldn't even require measuring or anything else to accomplish!)

I'm thinking it might turn out like one of those "flower towers" I have heard of but never seen; who knows? regardless, if it's something I figure out on my own, then I'm claiming it as my own...

(that assumes I get around to folding it, though!)

if I can get it to pull together, it might be a nice part of a larger tessellated pattern.

duo gunmen (Brian Chan lays the smack down)

Friday, October 28, 2005

duo gunmen
Originally uploaded by Chosetec.
Brian Chan on flickr has recently folded up these two very impressive origami models of some characters from the Trigun anime.

the one on the right, with the giant sword and animerealistic hair/hands/feet is just amazing to me! wonderful stuff.

Kodak creates self-lighting backlit paper!

Wednesday, October 26, 2005
Backlit prints

Imagine wallpaper that switches on to brighten the room, or floor tiles that glow underfoot, or even a photo album with pictures that glow on demand.

Kodak researchers in Rochester, New York, US, have been doing a lot more than imagining. Recently filed patents reveal how photographic prints, or inkjet printing paper, can be made to self-illuminate.

Kodak's new paper has a backing sheet made from a three-layer sandwich. A thin metallic sheet is coated with a smooth layer of white-light phosphor, similar to that used in a black and white TV tube, and the phosphor layer is topped with a transparent metal film.

The backing sandwich is then either coated with the silver halide chemicals used to make conventional photo prints, or the dye absorbing layers used for inkjet printing paper. Polymer glues hold the layers together, add strength and seal against atmospheric damp.

When electrical current flows from one metal layer, through the phosphor powder, to the other metal layer, a glow is produced. This provides a uniform backlighting for the images printed over the top.

The effect requires about 100 volts at several hundred hertz but very low current – similar to a pocket LCD screen. A transparent polymer coating acts as an insulator to protect against any tingle if touched.

Kodak has made the backlit paper thin enough to pass through a conventional printer and flexible enough to fit in a photo album.

Get full details of what Kodak is hatching, here. (Warning! link to patent application, and lots of potentially disinteresting engineering material)

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Pulled from NewScientist.com

non-origami, but interesting!

Monday, October 24, 2005
So, lately I came across an interesting guy on flickr- NRG78. he's quite a jack of all trades, and does lots of interesting stuff.

he has an interesting blog, at: http://nrg78.com/ipw-web/b2/. worth checking out. lots of varied interests, and definitely is "with it" when it comes to the newly expanding digital world, etc.

mawelucky folds a p6 tessellation! great!

Saturday, October 22, 2005

p6
Originally uploaded by mawelucky.
super origami tessellation folder Mawelucky folded this great p6 tessellation! good stuff.

logarithmic diamond bowl, bottom

Wednesday, October 12, 2005

logarithmic diamond bowl, bottom
Originally uploaded by Origomi.
I've been working on this little piece for a while now. just took photos today, though! it's a circle that has been folded using a logarithmic scaling for pleats that extend from the center of the circle.

it makes a rather neat bowl shape, that goes from completely folded up (like a little seed, almost) to a shape that is almost completely flat, like a satellite dish or a (rather pleated) plate.

it holds in a great bowl position, though. very nice.

excessively complex test fold, reverse, backlit

Tuesday, October 11, 2005

excessively complex test fold, reverse, backlit
Originally uploaded by Origomi.
I'm not showing the front of this as I could not figure out a satisfactory flat-fold collapse for the rather large amount of paper that gathered in the center. I ended up with an insanely thick blob of paper that looks something like a hexagon, which you can tell here by the dark shadow.

it did turn out in an interesting fashion, in terms of what was being attempted, and might lead to some interesting future designs on larger paper than this. as it was, the pattern barely fit on very 15cm x 15cm paper that was folded to 5 iterations deep (which is tiny little creases!)

Flickr in leaves

Monday, October 10, 2005

leaves flickr
Originally uploaded by alida saxon.
totally non-origami post, but a great photo by my friend Alida Saxon which is worth seeing.

she was also the kind person who gave me a flickr pro account!

her series of photos on sumac leaves, just posted, is certainly worth checking out.

Tesselation hexagonal

Thursday, October 06, 2005

Tesselation hexagonal
Originally uploaded by mawelucky.
a new tessellation folder on flickr! rejoice, rejoice!

ignore this, just some feed registration stuff

No Need to Click Here - I'm just claiming my feed at Feedster

Fredrik Owesen *is* alive! --- Stacked-Triangles

Tuesday, October 04, 2005

Stacked-Triangles
Originally uploaded by Owesen.
This great new fold posted to flickr by Fredrik Owesen. twisty, spirally, somewhat 3d, and very, very cool. now I have to try to reverse engineer it!

He's got a small pile of new photos posted on flickr, so make sure to pop over and check out his photostream. it's good stuff.

funky rhombic-looking tessellation from Melisande

Sunday, October 02, 2005
Browsing through Melisande's photos again today, I saw these (which looked new to me!)



Very nice! it's somewhat like her fabulous sampan tessellation, but in an interesting rectangular grid. great work!

my first hate spam!


Un-named star fold, closeup
Originally uploaded by Origomi.
wow, I got my first nasty comment today! it's actually pretty funny. I'm not sure what their objective was, but it made me laugh- so I guess it's all good!

http://www.flickr.com/photos/origomi/33174492/