Grommit, you forgot the crackers!!!
Scrolling through this year’s JOISEL AWARD entrants, I noticed a lovely little Rocketship designed and folded by Zhu Yandan, from China – it was released with a crease pattern (CP) so I thought it worth a try.
I used a technique called “Ghost Creasing”, where ONLY the needed creases are transferred via careful embossing using a stylus. This eliminates the excess grid creases, making the fold cleaner.
Continue readingFor a system to be considered “Turing Complete”, it must be able to be used for completing any computational problem. In the world of DIGITAL Turing Complete setups, these computations are achieved using simpler binary operations (like NOT, AND, OR, NOR, etc.).
In a paper recently released by Mathematicians Thomas C. Hull and Inna Zakharevich, they propose flat-foldable crease patterns for origami “processors” that simulate a number of simple binary operations (namely NAND, NOR, AND, OR, NOT and a few ancillary operations) making the theoretical proposition that flat foldable origami is Turing Complete.
I folded a few of the paper’s logic gates, and made a video of how they work – have a look:
Although this is a little nerdy, I can at least conceptualise the idea that a network of interconnected origami processors could, theoretically, actually do something useful. Technical challenges exist with having such crease patterns co-exist on the same sheet, in sufficient quantities to represent anything other than single bits (0/1 or On/Off or True/False), but the idea is none the less tantalising.
I link to a copy of the paper here: FLAT ORIGAMI IS TURING COMPLETE
Everyone called Charlie Brown “Blockhead”, a past Deputy Prime Minister continually is caught acting like one, so I began wondering what that would might like:
I had recently folded Boice Wong‘s astonishing pair of figures called “Emptyhead” (I named them Dumb and Dumber), so started there, and re-familiarised myself with the crease pattern, devising a smoother collapse (as I adopted the much criticised method of “parachuting” the last time).
I briefly toyed with the idea of posing him like Neo during Matrix’s groundbreaking “bullet time” scene, but decided to go simpler because he would be a … simple … soul.
The tricky bit was to use minimal paper for a neck, leaving enough of a pleat tube to sculpt a 2×2 solid cube, and explored that geometry a bit before settling on a scheme.
Continue readingI had forgotten how wonderful it was to lose yourself in a fold, particularly an Eric Joisel design:
I decided it was time to re-fold Joisel’s Cat because … the last time I attempted it back in 2011 (as part of the original 365 project) she turned out barely recognisable:
Naturally, the cat is looking at something, I decided it must be a rat. There are few more character-ful designs than Joisel’s Rat, so I folded him again – this time on a sheet 1/4 the size of the cat (to sort of get the scale right).
I reasoned the rat was around for a reason, so quickly found Jeremy Shafer’s “Cheese” design and decided the rat’s next meal would be cheese (unless he himself did not become dinner for the prowling cat). I folded the cheese with a square 1/4 the size of the rat to sort of get the scale right.
All too often a fold is completed in isolation – few designers design “sets” of models that are sort of meant to go together. Joisel’s Cat and Rat reference each other in their diagrammed sequences – I like that. Both models have challenging sequences – each with places where your judgment on where a fold goes completely changes the attitude of the model – I like that also as it let’s you infuse character into the model, and often means subsequent folds look different.
I think the only other origami artist that comes to mind for designing “scenes” is David Brill – his masterpiece “Brilliant Origami” is full of fun tableaus.
The majestic “Bin Chicken” is, sadly, an aussie icon – those black-headed ibis emerge from the deepest, moistest corners of a ripe dumpster, dripping bin juice.
Yes, I KNOW that an Egret is not an IBIS (the beak is different and the body colouration is different… but… creative license). This is Jeong Jae Il’s “Egret” – a beautifully lifelike rendition of an altogether more polite bird. The diagrams, from “Potential Origami” suggest heavier paper, so I trotted out a lovely 58cm square of duo Yukogami to work this model.
The paper is stark white one side, jet black the other, heavily textured and light cardboard in thicknicty, but I thought I would fold until either it was finished or it failed. The only real struggle was thinning down the legs that end up being about 12-18 layers. In finishing, after dry-shaping, I slid a little white glue inbetween the layers then re-formed on my dry shaped form, compressed and found the paper dried solid – an added bonus was I did not need to add wire, she stood on her own!!
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