What have you folded lately?

[Jeffery Mewtamer]

I doubt it's anything new, but I've been playing with regular hexagons recently and have found both a hexagonal coin purse and a non-modular octahedron that are closely related.

Both start from a regular hexagon creased as follows:
1. Fold in half along all three diagonals.
2. fold each edge to lie on the creases made in one.
3. unfolded, the hexagon will be divided into 6 congruent equilateral triangles each of which will be divided into four smaller equilateral triangles.

If you try folding consecutive edge midpoints to the center, the two small triangles that meet at the corner formed by the two edges can form a flap.by turning these flaps insde out and tucking them underthe part that was folded into the center and going around, you get what I'm calling a coin purse, which also has the nice property that it's has half the edge length of the original hexagon, 1/4 the area of the starting hexagon, and has four layers of paper throughout the flat model.

From the coin purse, if you pull out two opposite flaps, fold the model in half midpoint-to-midpoint through the part that is now only two layers thick, and push in the bisected edges, the flat model pops up and the flaps that where pulled out can be tucked into a slot on the face on the other side of the sunken part. The resulting Octahedron has no creases on any of the faces and has equal numbers of edges that are simple creases and edges that have slots cat could be used for accepting flaps for modular constructions. The Octahedron probably wouldn't make a very fair d8 though, as If I'm not mistaken, four of the faces have 1 layer of paper, 2 have 3 layers, 2 have 5 layers, and the remaining 4 of the triangles the hexagon was divided into are interior to the shape.

I haven't tested it, but I suspect triangular and pentagonal bipyramids can be constructed in a similar manner.

[isurus]

these are all my creation






The chaser






Dynastes neptunus





Torosaurus






Stegosaurus

[kareshi]

A certain dancing shark.

[Origami_Sunshine]

Helmets by Alexander Kurth
Swords by Hsi-Min Tai

I think teddies are having lots of fun playing with them, don't you?

Helmet & Sword by OrigamiSunshine, on Flickr

[Mir Numaan]

Jackalope design by Kamiya Satoshi by Mir Numan, on Flickr

[picaruelo]

Hi,

This is an origami recreation of a Spanish School in the 1960s. It has been folded by members of the AEP in Madrid for an exhibition that is taking place in Madrid from the 15th of January to the 28th of February. It is located in Centro Cultural Pilar Miró. Pza/ Antonio Maria Segovia s/n
More photos: https://www.flickr.com/photos/aepmadrid/



Good folds,

[Mir Numaan]

Crane design by Nicolas Terry by Mir Numan, on Flickr

[Malleon]

Here's several things I folded from December until now. I think I made quite a good progress....

Dragonfly - Brian Chan by malvin_leo, on Flickr
From 38 cm x 38 cm single tissue paper, treated with MC(?) - PVA mix
On hindsight, I don't like this model very much. The wings comes from the ventral side rather than dorsal.

Aedes aegypti, opus 619 - Robert J. Lang by malvin_leo, on Flickr
From 45 cm x 45 cm cassava paper painted with acrylic, treated and shaped with PVOH
The two pairs of middle points are extremely frustrating.

Violin - Gen Hagiwara by malvin_leo, on Flickr
From 15 cm x 60 cm double sided (golden crepe and black tissue) tissue foil, bound with diluted PVA

Tarantula, opus 406 - Robert J. Lang by malvin_leo, on Flickr
From 45 cm x 45 cm cassava paper painted with acrylic-poster paint mixture, treated with PVA - modified starch mixture, and shaped with PVOH

Japanese Tree Frog (as Poison Dart Frog) - Satoshi Kamiya by malvin_leo, on Flickr
From 40 cm x 40 cm cassava paper, colored with yellow poster paint and streaked with black poster paint, treated with PVOH-PVA mixture, shaped with PVOH

Japanese Tree Frog - Satoshi Kamiya by malvin_leo, on Flickr
From 30 cm x 30 cm double thin glassine (green and red) foil, bound with PVA

Phoenix 3.5 - Satoshi Kamiya by malvin_leo, on Flickr
From 50 cm x 50 cm yellow glassine, hold in shape with PVOH
I fudged up the wing on this one....

Cyclommatus metallifer - Satoshi Kamiya by malvin_leo, on Flickr
From 40 cm x 40 cm cassava paper, colored with acrylic-poster paint mixture, treated with PVOH-PVA mixture, shaped with PVOH
I messed up the teeth on the mandibule.

There are several more things I folded, mostly intermediate. However, here in Indonesia, the downpour is just insane (2 days straight!) so I cannot photographed it outside, and I don't have a lightbox.

[JAPC]

Mr. Boo!
For the february folding challenge.

[Riley]

Wow these are all wonderful designs ,I wish I was at a level of expertise as most of the people here
Only time and practice will get me there, good luck and have a wonderful life everyone.

[Wizmatt]

I've designed and folded an eagle. Folded from 40cm wrapping paper that came with an Amazon parcel. I'm quite surprised at how good it is for folding.

Eagle by Wizmatt, on Flickr

[Damian Malicki]

Ryujin 2.1 designed by Kamiya Satoshi, folded by me

Ryujin 2.1 designed by Kamiya Satoshi, folded by me by Damian Malicki Origami, on Flickr

Head

Ryujin 2.1 designed by Kamiya Satoshi, folded by me (head) by Damian Malicki Origami, on Flickr

Hope you like it!

[Tomasz Krawczyk]

Sheep by Tomasz Krawczyk

[Mir Numaan]

Buffalo design by Kunihiko Kasahara by Mir Numan, on Flickr

[primus]

Rooster
diagram Akira Yoshizawa (Tanoshi p.86)
paper Craft (15x15 cm)