1093: “An Origami Journey”

Avid noticers of this blog will realise that, since 2011, I have been rapidly expanding my abilities as a folder. Like most people, my first ever origami experience (apart from largely unsuccessful paper planes) was an origami crane (Tsuru) – taught to me as a boy of 11 yrs by a Japanese exchange student. A few years back I completed my task of learning how to fold Satoshi Kamiya’s “Ryujin 3.5”. This fold is not unrelated to both events:

Brandon Wong's "An Origami Journey"

Crane to complete Eastern Dragon is quite a journey, learning all sorts of new techniques and refining skills along the way and this fold celebrates that very journey. Originally designed and folded by Brandon Wong (@ThePlantPsychologist) – I first saw his fold on Instagram, and then photos of it on OrigamiDan (a discord server I am a member of) and vowed, one day, to fold it.

Brandon very kindly published the Crease Pattern along with photos of his fold, and right now I am rapidly learning to solve crease patterns so the perfect storm emerged after retiring I have time to tackle more ambitious folds.

Brandon Wong's "An Origami Journey" 360 view

After gridding the 90cm square, I set about laying in the exacting additional creases needed, including a puzzling pythagorean hinge line and some baffling level-shifters. Collapsing was a …. process. Apparently I “parachuted” the model – starting at the edges and working towards a bulging centre is termed parachuting (which is something I must address) until it more or less sat flat. After checking in with Brandon (isn’t the internet amazing) he suggested a fix for the only collapse kludge I had on his right shoulder.

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1060: Second Stellation of a Cuboctrahedron

To celebrate the release of his lovely new book of modular polyhedra (must get me one), Fergus Currie offered an early morning (for me at least on the opposite side of the planet) workshop on how to fold his second stellation of a cuboctahedron:

The second stellation of a cuboctahedron

I set an alarm, awoke at 1am and folded along with Fergus.

I like this modular a LOT – each vertex is a single piece of paper – it works well with paper that has only one side printed or printer paper. The design is ingenius, the angles odd and exacting but you get into a groove and they make sense in the end.

The second stellation of a cuboctahedron VIEWS

I went into production line, and using the template to establish the initial odd division, I found that using a fine ball stylus and ruler it was easier to lay in the intermediate creases with the accuracy to make the vertices crisp and accurate.

Once I had 24 units, I then interlocked them in groups of 3 using the narrow tabs and pockets – these interlock really tightly and I could not imagine trying to do these later. I then joined the triples as they tile on longer tab-pocket sets that slide together with a little encouragement. Eventually the units combine to become this wonderful spikey ball with unique geometry.

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1034: Eric Joisel’s “Harlequin”

A few months back, in the relative calm of my summer holidays, I began to re-fold “Harlequin” designed by Eric Joisel, after failing to successfully fold it during the “Tribute of Eric Joisel” competition I was part of late last year:

"Harlequin" designed by Eric Joisel

I took my time, learned lots from initially failing, made sectional maquettes to check techniques and really enjoyed the process of folding.

"Harlequin" designed by Eric Joisel in the round

This model is such a synergy of techniques – I can see influences from so many of Joisel’s other creations (many of which I have folded before). The initial collapse is vaguely humanoid, but the shaping is the making of model. So many details to control. The face and hat are tricksy but I an really happy with the level of detail I managed here – he has a playful but chilled character, smug smile and refined face – the mask is jauntily sitting on his nose also.

The fabric effects to the sleeved and pantaloons are a nightmare – to make them seem to “drape” is really hard I found, but eventually it came together. I pre-creased some quilted effect on the bodice and skirt which I am really happy with, and the collar took me ages to nut out. He is in full stockings (diamond pattern), has goofy shoes, a fly-away in-action wavey cape and open hands – so many bits were there waiting to be shaped. One can only marvel at the genius of the design.

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1002: Flat-folding Curve-following Parabolic Corrugation

I had been exploring corrugations that followed curved lines, as you do, and sort of worked out that you needed a quadrilateral face with equidistant gutters either side, but my rough approximations were foldable but not pretty:

Flat-folding Curve-following Parabolic Corrugation

Then I saw a published paper, about the same thing, that suggested square/rhombi arranged diagonally to follow the line, organised diagonal-based accordion pleats, and a scale factor bigger of the same shape for the gutter creases and bingo, problem solved.

Flat-foldability is a thing, there is lots of maths in it, but it is so satisfying to have manually derived something that was subsequently proven (*flex*).

Flat-folding Curve-following Parabolic Corrugation CP
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985: Satoshi Kamiya’s Ryu Jin 2.1

Some folds are quite the journey, Ryu Jins are no exception. I have already folded the 1.2 and the 3.5, but had not tried the 2.1, relegating it to the “when I have time” pile:

2 point 1 - model

Holiday time is a time of recharge, paper folding therapy is my thing so I embarked on the super-duper-complex journey with HUGE bits of paper. I decided to fold it in 2 halves (two 140 x 70 cm rectangles of red duo Ikea Kraft paper).

2 point 1 - CP

As a bit of paper engineering, Ryu are masterpieces of fitting so much on a single square. The 2.1 is laid out in a similar morphology to the 3.5, with 2 halves of the model on opposite edges of the paper. The Ryu 1.2, in contrast, uses the diagonal and is symmetrical about that.

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