wombat1138: (narbat)
I was going to add this to the snowstar notes on dA, but it started getting too wordy. Quick reference pic:



The actual dimensions I listed in the original notes (N = 3") were chosen more for cutting convenience than strict accuracy, although they're reasonably close. I'm also providing a second set of approximate measurements for N = 3.5", since that's what most of my pre-cut paper supply is.

I'm also reverting a bit to the terminology from Lew Rozelle's Origami Ornaments, which I just bought a Kindle copy of and am not entirely happy with-- it leaves out the very useful supplementary table of contents that lists all of the individual modules.

(Hm-- what's with the huge space preceding the table in preview? Guess I'll see if it's still there when I actually post... aha, it's a linebreak artifact.)Read more... )
wombat1138: (Default)
Origami update: Finally nailed the single-sheet octants. Yay.

I shall now revert to flooping over from Martian Death Flu. Or at least Martian Extreme Annoyance Flu, which is now embarking on its second week. My energy level wasn't directly affected in the usual flu sudden-onset hit-by-a-truck way, but it's been gradually wearing down from all the coughing and sniffling. I just did a half-sized laundry load this morning that consisted almost entirely of goopy handkerchiefs :b

OTOH, the goopy half-leaf I snipped off my miraculously-not-dead aloe plant (almost all plants die under my attempted care) really does seem to be helping the chapped nose more than lip balm or petroleun jelly did. And nasal irrigation is also extremely effective at intervals, though I really have to remember not to use iodized salt ow.
wombat1138: (spot)
Box dividers, really, but still full of failitude-- I've been trying to come up with a single-sheet pattern to create eight compartments inside one of Tomoko Fuse's standard square modular boxes. (No pix, because it's just that faily.) Read more... )
wombat1138: (Default)
42 paper squares of various sizes for each one *floop*

(The smaller one is ~4" across; the larger one is ~6" across. Paper square sizes range from 1 - 3.5".)

Flexagons

Nov. 30th, 2009 11:15 am
wombat1138: (Default)
Have detoured from tamatebako experiments to playing with hexahexaflexagons. Will have to get hold of some cardstock for more durable models, and/or check effects of paper aftercoats such as Mod Podge-- the pattern probably isn't directly plausible for strung/wired beadage, and I don't think I have the gadgets/skills to mess about with small metal panels/hinges. I don't think it would make a good hat or similar wearable object either-- textile adaptations probably limited to cushions and such.
wombat1138: (Simpsonized)
Semi-coherent working notes, based on scribbled diagrams and crumpled scrap-"doodling" from last night--

Inherent problem w/ matching right-angle flaps into shallow pockets-- partially solvable by folding flap sides down into a flatter half-height triangle.

Quasi-triangular hinge buildable by "blintzing" alternate corners of a corresponding hexagon underneath, then pinwheeling up the triangle sides analogously to Rozelle's complex bases-- flips blintzed hexagonal corners back out over underside pockets. Add internal inserts as support? Modify to outward starpoints to reinforce outfolded pocket petals?Read more... )
wombat1138: (Default)
Have resumed fiddling around with the tamatebako pattern. More specifically, I've been trying to find a flat triangular hinge for the cuboctahedral variant-- Tomoko Fuse has a 3-pocket equilateral triangle in one of her books on modular polyhedra, but there isn't enough internal friction to hold the flaps in place so they pretty much have to be glued anyway, which misses the point.

As an alternative, there're Lew Rozelle's "three-sided bases", but those have their own problems. Because they're pyramidal, the final shape would end up just being a larger cube, albeit more complexly patterned. Their closure method is rather bulky, requiring thin paper with a much thicker internal insert to provide internal structure; the smallest thin-paper squares I have on hand are 3".

And then there's the question of relative paper sizes, although the logistics actually simplify quite a bit inm practice. Starting with an N-sized square for the tamatebako face, the face flap is N/3. This theoretically dictates a 2N/3 square to fold a simple pyramid (reasonably straightforward)-- and for a complex pyramid, a 2N/(sqrt 3) square (somewhat less straightforward; ~(1.155)N ). However, on my usual scale where N = 3.5" or 3", an N-sized square for the complex pyramids is a pretty good fit.

OTOH, the complex pyramids are obviously more complex to fold (not too much-- mostly just a matter of an extra blintz step at the beginning), but while it's not too difficult to measure and cut 2" squares for simple pyramids with N = 3" , it's a bit more fiddly to measure and cut 2-1/3" squares for N = 3.5".

...though if I have to measure and cut 2" squares anyway, it's not that much more of a task to measure and cut 3" squares while I'm at it.
wombat1138: (spot)
Finally bought a copy of Kunihiko Kasahara's The Art and Wonder of Origami, from which I snarfed the tamatebako folding pattern a while back. He gives a historical overview of the object, documenting its first appearance in an 18th-century woodcut illustration of a decorative panel carved with several different traditional origami models and its first known folding patterns to one of Isao Honda's origami books in 1933 (both the basic six-part cube and a fancier "hexahedral" version that connects the flaps of the six square faces into overlapping triads, creating eight additional triangular faces as the truncated vertices of a larger cube). Kasahara also lists the earliest English-language pattern as a "stamp box" (cube only) in a 1937 book.

Semi-coincidentally, last night I browsed through a Barnes and Noble reprint of Harry Houdini's 1922 book Houdini's Paper Magic which turns out to have the pattern for the "hexahedral" tamatebako as a "Japanese hexagon puzzle box", listed with various other traditional models which Houdini learned from a Japanese acquaintance. Sent an email note to the English-language publisher of Kasahara's book hoping to pass the info on to him if he doesn't already have it; got a vacation autoreply.
wombat1138: (Default)
Finally got around to figuring out a stable perpendicular half-divider for Tomoko Fuse's standard modular box-- the dimensions may still need a bit of tweaking, but the concept seems basically sound. It uses the same size of paper square as the box modules.Read more... )

As an initial subdivider for the rectangular halves, here's one that creates three triangular subcompartments, with the larger middle one flanked by smaller triangles on each side; it's sort of the half-shape equivalent of the five-compartment divider, starting with a half-rectangle:Read more... )

And a semi-analogue for a diagonal half-compartment; this creates a square quarter flanked by two triangular eighths, partitioned by full-height troughs (the partition itself is continuous but the troughs are in two distinct segments, so it isn't possible to fit a single long L-shaped object atound the square quarter):Read more... )

Also, archived diagrams for the Magic Rose Cube; I think I printed these out a while back and made a few, but lost track of them since then.

Hah!

Jan. 24th, 2009 07:02 pm
wombat1138: (Default)
(Cut for spoilers.)

1.) Finished Okami earlier this week, though I missed several things in the game. Most of it was minor stuff like Stray Beads here and there, but apparently I managed to accidentally skip Read more... ) (As a future trivia reference, 大神 (ゲーム).)

2.) Finally managed to semi-confirm a theory about a minor detail in a Yamaguchirow doujinshi, specifically Read more... )

Meanwhile, making slow progress with the hana-kotoba book, though not in a very organized way. If I'd thought this out more clearly, I would've divided the translations into individual index cards for each entry, instead of just sequentially jotting things down into a notebook; this is especially obvious when considering the long list of flower names transcribed from the table of contents, and then the separate list of add'l info from the book proper. Oh well.
wombat1138: (Default)
Two modifications of the X/+ 4-compartment dividers into analogous 3-compartment dividers (one half + 2 quarters), a small "2.5" secondary divider for the one of the quarter-sized triangular compartments in an X-shaped divider, and a diagonal subdivider for diagonal halves (or diagonal 2.5).Read more... )
wombat1138: (spot)
This is pretty nifty-- a five-section divider with a large half-area square/diamond/star-shaped central compartment and four smaller 1/8th-area right triangles in the corners. Fits into Tomoko Fuse's standard four-part modular square box bottoms.

I'd been wondering about the feasibility of something like this for a while, and finally started messing around with paper today to see if it could be done. What I ended up with is a mutant version of the traditional one-piece masu box, sorta turned inside-out or upside-down or something. It uses the same size of paper as the box modules.Read more... )
wombat1138: (Default)
(also, heap o' kusudama.)

Four-compartment diagonal dividers for Tomoko Fuse's standard square box; they're pretty similar to the rectilinear dividers from before. However, my practice paper is a bit off-square, so the relative dimensions are somewhat wiggly.Read more... )
wombat1138: (Default)
Slight edits for the third set of instructions (half-area isoceles right triangle dishes) in my earlier post.Read more... )
wombat1138: (Default)
Sorry, no pix here; having figured out how to fold a few simple dividers that fit into Tomoko Fuse's standard square boxes, I'm just jotting down the instructions before I forget them again. Both of them start with the same size of paper used for the boxes.Read more... )
wombat1138: (marker sketch)
Just found a copy of Rozelle's Origami Ornaments for $15, instead of the ~$50 range I'd been seeing for it otherwise. And earlier today, a uranium-glass vase at the thrift store. *And* when I got home, my Yamaguchirow pencilboard had finally arrived. Life is good.

(I should probably figure out what to *do* with the various uranium-glass non-beadage-- and for that matter, completed kusudama-- that I've been accumulating. Ah well, there's bound to be something.)
wombat1138: (Default)
Based on recs from Amazon, finally tracked down Lew Rozelle's Origami Ornaments at the local library. It's everything I'd hoped that Tomoko Fuse's Floral Origami Globes would've been (although I've become reconciled to the latter for its own peculiar virtues). Unfortunately, Ornaments out of print and used copies are $$$. Found the author's email address and have asked whether there's any hope of bringing it back into print.

Still no pics of recent kusudama; have been distracted by beadage and need to re-sort the finished pieces piled near the computer so I can straighten out which ones have already been listed and which haven't. Also need to STOP MAKING NEW STUFF for now until the previous items are sorted out.
wombat1138: (Default)
...okay, I have to admit I was wrong. When I first got Tomoko Fuse's latest book, Floral Origami Globes, I wasn't very impressed by it and considered returning the thing, due to the tedious prospect of having to make at least 12 identical 2-piece modules for every finished kusudama. However, once I stumbled onto the concept of mix'n'match color schemes within each kusudama, I was hooked.

And now I have beads all over the floor that desperately need to be put away before tomorrow, when the cleaning lady sweeps through and the wombat-consort comes home from his trip, and I can't stop making kusudama. See, I've got all these odd pieces, and I think, "Well, instead of trying to rubber-band all these modules together, it'll be easier for me to make a few more so I can just assemble the entire kusudama and store it that way." And then I space out and fold something the wrong way, or grab the wrong color of paper without noticing it, and then I've got two *more* modules that need to be paired off and matched up, and then *another* kusudama needs to be made, and...

(I have no idea wtf I am going to do with all these kusudama. Maybe put them into a box and eBay them off that way. I managed to get rid of one this morning by using it as a space-filler in a box of jewelry. They're breeding like rabbits. Halp.)

Doh.

Oct. 14th, 2006 12:26 am
wombat1138: (Default)
...as I suddenly realize, "Jeez, I actually do have a page where I can put photos of the origami stuff I've been yakking about instead of trying to dance about architecture."
wombat1138: (Default)
Having discovered a few weeks ago that I'd forgotten how to complete a Kawasaki rose, I hauled out my copy of Origami for the Connoisseur and stumbled my way back through the directions. It'll probably take a few more roses before I actually remember all of the steps again.

Meanwhile, for the past few days I've been poking through some tamatebako models, which interested me because of their presence in myth as well as their (alleged) properties-- it's a long-lost origami pattern which was apparently lost for several centuries but was finally reconstructed from sketches in a historical manuscript. It's a cubical box which can be opened from any one of its six faces, but supposedly if you open too many faces, the entire box falls apart. However, it's not a "pure" origami pattern because it involves both scissors and glue.Read more... )

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