![]() ![]() 16-20 (front/back/backlit): Open suns, open triangle wheels, CT stars gapped, CT linked flowers, OT stars gapped At first they look easy, then you realise there are elements UNDER other elements, others that WRAP others. ![]() Layer management was then tackled – easy vs hard collapse sequences and then the hardest stuff of all – stacked geometry. “Open” rhombus twists did my head in – the “anvil” shaped setup for the narrow diagonal kept getting lost in the pleats and many of them I ended up “freestyling” then tidying up using the resting geometry when everything was flat again. “closed rhombus twists require a “diamond” to define the narrow diagonal and paper tension to collapse the long points – it took me ages to get them right (and neat). Rhombus twists continued to mess with my head. 11-15 (front/back/backlit): Fairy rings, convergence, lens stars, open lens stars, open saws We then progressed to closed hexagon twists (again, something I had done lots of beforehand) and refined them into “open” hexagon twists – a fascinating variation of a “star puff” of which I had passing familiarity. 6-10 (front/back/backlit): Triangle double-bar wells, shrinking violet, studded wheels, radiant, dancing ribbons We later progressed to “open” triangle twists, which are much harder, and require a “setup” that uses paper tension to define the lines off-grid that were the sides of the triangle. The folds started with closed triangle twists (something I had done a lot of previously, so found accurate placement of these fairly easy. This approach came awry pretty quickly as the elements began to argue for the same real estate on the sheet and I learned that sequential development was way more sustainable. The first few were easy, and collapsed simply, but then I decided I did not need the tutorials and proceeded to mark up the paper with the day’s CP and collapse from that. 1-5 (front/back/backlit): Cluster 6, cluster 4, cluster 6 alternating, cluster 4 alternating, HT6 closed alternating The idea was that Madonna released a CP and a video tutorial each day for 25 days, victims start with hexagons of paper pre-creased into 16-grid triangles, and collapse increasingly difficult combinations of tessellation techniques on the page. I guess I am supposed to know about Advent, having worked in a Catholic boys school for 33 years, but… apparently it is the 25 days in December leading up to Xmas (learn something every day) If you want to try a more complicated version, cut two different squiggles out of two different sides, and move them both.It was late in the semester, I was looking for a folding project (to add to the other 4 already on my board – procrastigami strikes again) and noticed in my feeds a 25-day program by Madonna Yoder called “Advent of Tess”.Color in your basic shape to look like something - an animal? a flower? a colorful blob? Add color and design throughout the tessellation to transform it into your own Escher-like drawing. The shape will still tessellate, so go ahead and fill up your paper.Then move it the same way you moved the squiggle (translate or rotate) so that the squiggle fits in exactly where you cut it out. On a large piece of paper, trace around your tile. Tape the squiggle into its new location.It’s important that the cut-out lines up along the new edge in the same place that it appeared on its original edge.You can either translate it straight across or rotate it. Cut out the squiggle, and move it to another side of your shape.Draw a “squiggle” on one side of your basic tile.The first time you do this, it’s easiest to start with a simple shape that you know will tessellate, like an equilateral triangle, a square, or a regular hexagon. Here’s how you can create your own Escher-like drawings. Work on the following exercises on your own or with a partner. ![]()
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