Hacky Sack is a football game played by 2 players. The origami hacky sack is an angled modular made from 30 units. The design is by Winson Chan. The modules are not too difficult to fold. The assembly is slightly more complicated and the end result is a very solid sphere that does not require any glue.

The sphere is assembled in modules of 3 and then joined together into pentagons. And joining 30 units results in the dodecahedron, with little triangular corners and a whole lot of open spaces.

I found it an interesting and artistic model to fold. And I must say I love the combination that I have chosen as well. The combination of green-yellow-orange is always a pleasure to look at. Makes one think of bright, sunny days!

Model Details:

Model: Hacky Sack 

Creator: Winson Chan

Difficulty Level: High Intermediate

Paper Ratio: Square

Paper Size: 4 inch squares

Model Size: ~6.5 inches in diameter

Modules: 30

Diagram: Origamidiagram.com 

The Dodecaedro Traforato or Perforated Dodecahedron is a modular origami by Silvana Betti Mamino. Like most modular origami, the modules are pretty easy to fold. They are folded from a A4 sheet. Well, the A4 is actually cut into 4 rectangles horizontally. I felt A4 strips would be too big, so worked with A5 sheet cut into 4 rectangles. Worked perfectly well :) I used printer paper - 5 colours and 6 strips in each colour.

Folding printer paper wasn't that easy - 80 gsm paper requires more effort to fold than 60 gsm, doesn't it? Assembling for me, was the most challenging part. The reason was because of the colours. I wanted to ensure that there was some kind of uniformity in the assembly and after 3 attempts, I finally managed it I think.

The modules hold together without glue once fully assembled. But I didn't find it terribly stable, so if you will be moving it about, then a little glue helps. If you are assembling without glue, ensure you have a whole bunch of paper clips to hold the modules in place.

Model Details:

Model: Dodecaedro Traforato

Creator: Silvana Betti Mamino

Difficulty Level: High Intermediate

Paper Ratio: Rectangles from A5

Paper Size: 2.1 inches by 5.8 inches

Model Size: 4.5 inches diameter

Number of Modules: 30

Instruction: Modulandia.it

I recently bought Tomoko Fuse's 'Unit Polyhedron Origami' and I was immediately tempted to try out one of the first models described in the book - the regular polyhedron.

It is an interesting model to make and I must say I love the end result :) Assembly is slightly difficult in the initial stage, where you have each module trying to come apart. But after around 7 modules have been added, adding the rest is quite easy.

I will probably be trying out more from this book; there are quite a few lovely models explained in the book.

Model Details:

Model: Regular Dodecahedron 

Creator: Tomoko Fuse

Book: Unit Polyhedron Origami
 
Author: Tomoko Fuse
 
Difficulty Level: Low Intermediate

Paper Ratio: Square

Paper Size: 5 inches

Modules: 12