25 December 2013

Origami Heart



MERRY CHRISTMAS!!

A simple yet beautiful Origami Heart designed by Francis Ow.

Instructions on Francis Ow's website : Two Simple Heart: http://web.singnet.com.sg/~owrigami/hearts.htm

Video Tutorial by Tadashi Mori :



Time required: 5 minutes for one model

Paper used: Color printer sheets. (Colored on both sides)

Paper size : Any rectangular paper (that is sides of ratio 1:2). I have used 3 inch x 6 inch for this one.

Difficulty : Simple.

No of Units : Single sheet

No glue



23 December 2013

Origami Crane




Origami Crane(orizuru in Japan) is a traditional and one of the most famous Origami designs. It is a simple and great model to try for beginners. It is also considered very auspicious in Japan.

Difficulty : Simple and great for beginners.
Time Required : 10 - 15 min
No of sheets:  One square sheet. I have used 6 inch square sheet for the model in the photo.

Starting from Square Base, following are step by step folds to make an Origami Crane.

1. Square Base - http://or1gam1.blogspot.com/2013/12/how-to-make-origami-square-base.html


2. Fold the sides to meet the diagonal.

3. A triangle is formed above the folds. Fold it down to get a crease.


4. Open the triangle and the two side folds. Create a diamond  like fold like below, by bringing the tip up following the creases created. 


5. Repeat on the other side to get the below step


6. Repeat step 2 on the above fold. Repeat for the other side.


7. To get the neck. Squash fold like below.


8. Repeat on the other side, to get the tail


9. Fold the two upward flaps to get the wings


9. Squash fold the neck to get a beak. 


Extend the wings to collapse the sharp upper triangle to get the body of the crane





Video tutorial available here:


How to make Origami Square Base




One of the basic folds in Origami is the Square Base.Square Base is invariably used in many modules.

Following are the steps to make a Square Base.

1. To start with, I am taking a 6 inch square sheet. Colored on one side and white on the other.


2. Fold the paper (colored side up) in half vertically. 


3. Fold the paper in half horizontally to get the below crease on the white side.


4. Fold the paper along the diagonal with white side up. 


5. Repeat the folding along the other diagonal, with white side up, to get the below crease.


6. With these folds, we have divided the paper into four squares. For the final step, press the center of the square (marked in blue) inwards. Bring the two sides, marked in black, on the line, marked in orange. The two orange lines lie on each other.


After the fold it looks something like this:










01 November 2013

Origami Decorations

This is my 50th post. Here's some decoration ideas:


9 intersecting Stars and Impatient Trillium 


Kusudama


Intersecting tetrahedra




Other models so far




25 October 2013

Fireworks by Yami Yamauchi


Paper:  Regular color printer paper used

Designed by: Yami Yamauchi

Tutorial : by Jo Nakashima



No. of units required: 12 (6 - Orange , 6 - Green)

Size of each single sheet: 4 inch square

Difficulty: Simple and very easy assembly.

Time: Can be finished with in an hour or so

No glue required.



11 September 2013

Evi's Rose



Paper used: Regular printer sheet

Nice tutorial by Tadashi Mori:



Difficulty: Simple - easy folds, edges need to be trimmed and folded to get a rose look. Has a flat base, easy to place it on table. I could have done better.

Paper Size: 8.5 inch square for above model

No glue/scissors required for this, Rose of Roses and Kawasaki Rose.

Time: 30 min or less



06 September 2013

Rose of Roses - Jordi Adell


Paper used: Normal color printer paper.

Nice tutorial by Sara Adams:


Difficulty: Easy , has a kawasaki like twist, I did this after kawasaki rose, felt fairly easy. Should modify after the final step to make it look like a rose, the better one modifies, the better it looks like a rose. Sturdy enough, not as sturdy as Kawasaki. Kawasaki folds are tight enough, won't come out easily even after a heavy throw.

Time: 30 min

Paper size: 

The baby pink rose - 6 inch square
The dark pink rose - 8.5 inch square

Inspiration: http://blackswanfolds.blogspot.com/2013/04/rose-of-roses.html

I came across this type of rose through the above blog.








05 September 2013

Kawasaki Rose



I changed the blog appearance again for it is convenient to customize with default blogger template. The earlier template had not much options.
Check out the Gallery tab above, to view all the modeld in Google blogger dynamic view. Looks good :)

Kawasaki Rose


Did this on 22 June 2013.

Too many creases that are easy to make. I thought I might find Kawasaki twist a bit hard. When I tried it was not as difficult as I thought, it neatly got twisted.
One tip: While making creases before Kawasaki twist press it nice. I used my nail to press each of the crease. This might have made the Kawasaki twist easy.
After this the folds might get confusing, not impossible to figure out though. First time I folded 3 houses and I got stuck at 4th one, kept wondering where the flap must be folded, took few minutes to figure out.

Final model is very neat.

Reference: A very nice video by Marigami



First time (above photo)

Paper used: Color printer paper.

Paper size : 8.5 " x 8.5 "

Second time: (below photo)

Paper used: Scrap book Paper which is thicker than printer paper. I felt thicker paper works out well for this.

Paper size:  12 " x 12 "

***

No of sheets : one

Difficultly:  might not be easy for beginner level. Intermediate I would say

Time : can finish in 1 hour. Second time I took lesser time.

I felt bigger size paper looks good.Sturdy model. My scrapbook sheet has lot of embroidery designs, the rose done out of this paper doesn't look that clear in photo.

I didn't use any glue or paper clip while making this rose.

What I like about such model is it requires just one sheet.

After the Kawasaki twist:


Kawasaki Rose: Not very clear in this scrap book sheet sue to the design.




04 September 2013

Origami butterfly (michael lafosse)

michael lafosse

Paper used: Color printer sheet, both side colored. Use double color paper for a better look.

Difficulty: easy

Time:  30 minutes

Paper size: 8.5 square sheet

Tutorial by: Michael lafosse - His personal blog: http://www.pem.org/sites/origami/






Andrea's Rose


Second tessellation I tried.

Paper used: Color printer paper.

Time : 1 - 1.5 hours

Difficulty: moderately easy.

Size of the paper:

  1. 8.5 inch square to make the model in above photo with 6 layers
  2. 12 inch square to make the below model that I framed with 6 layers, the paper was too thick.
(It is not very clear in the photo due to the color of the paper)

Suggestion: Printer paper with normal thickness suits well. Do not take a very thick paper, folding becomes difficult



Tutorial by Sara Adams - could not follow clearly after couple of steps.


This video is sufficiently clear and was able to complete with this guidance.




Started and completed on : 4th June 2013



09 August 2013

Hydrangea by Shuzo Fujimoto

Designer :  Shuzo Fujimoto

Started on 31 May 2013.

Hydrangea is the first tessellation I tried. Nice thing is it requires just one paper.

Reference: http://youtu.be/3Y3EcpOSSRs
Paper used: Color printer paper.

Size:

  1. 12"x12"(above picture in which I was able to do 6 layers)  
  2. 8.5 inch x 8.5 inch (below picture), this is the largest square we can get from 8.5 " x 11 " printer sheet. I did 3 , 4 and 5 layered Hydrangea


Difficulty:

Moderate, I got confused at couple of folds.

First attempt - 31 May 2013, I folded 3 layers. In the video Sara Adams clearly tells how to get another layer. I got little confused and stopped at 3 layers.

Second attempt - 3rd and 4th June:  I realized how to fold another layer and folded 4 layers and 5 layers.

Finally folded up to 6 layers and framed it.

Printer paper is good to fold, especially slightly thicker paper, not too thick, it becomes difficult to fold multiple layers.

Interesting read:

http://www.coolmath4kids.com/tesspag1.html

04 August 2013

Kusudama fish curler

Designer :  Ekaterina Lukasheva

Tutorial available here: 



More info: http://www.kusudama.me/origami/Curler - Ekaterina Lukasheva's official page

No of units:  30 units.
Paper size used : 4" x 4"  
Difficulty: easy to make units and simple assembly.
Paper used: normal color printer paper
Time: 3-4 hours




22 July 2013

Rhombicuboctahedron curler units

Designer: Herman van Goubergen

No of units:  24 units.
Paper size used : 3" x 3"  
Difficulty: easy to make units and simple assembly.
Paper used: normal color printer paper
Time: 1 hour

Rhombicuboctahedron is an Archimedian solid with 8 triangular and 18 square faces. 
Further reading: http://en.wikipedia.org/wiki/Rhombicuboctahedron

Icosidodrcahedron - Rhombicuboctahedron - Cuboctahedron



16 July 2013

kusudama versailles

Designed by Krystyna Burczyk


Presenter: http://www.youtube.com/watch?v=RmNeREucbIg by Tadashi Mori

Paper used : Color printer paper

Paper size:  4 " x 4 "

Single flower with single unit
Difficulty: Easy, assembly is easy.

No of units: 60 to make a kusudama ball. 5 units to make one flower. 12 flowers required totally.


12 flowers
Time : I took 5 days. I would have taken 6-7 hours totally to make 60 units and assemble.

No tools used for curling, no glue used for assembly.


Single unit with Completed Kusudama ball
It is easy to make units and assemble. Didn't find any problem. It's a beautiful bunch of paper flowers.It looks more beautiful in real than in photo.



Interesting math:

When we fold the first two steps, we actually dividing 90 degrees into three 30 degree angle. Simple proof using Trigonometry:

 θ = 60 degrees.
 α = θ / 2 = 30 degrees. (α is angular bisector of θ)

I have used 4 inch square sheet. Side of square would be 4 inch. AB is 4 inch since we fold the tip of below right corner of square, let's say D, to point A. Hence AB = BD = 4 inch.


Started on 17th June 2013. Completed on 21 st June 2013



10 July 2013

Archimedean solids


When I did Icosidodecahedron curler unit, I went curious about this polyhedron and searched on the net. I found some really interesting facts I thought worth documenting here for quick reference.

 Archimedean solid, (From Wiki) it is a highly symmetric, semi-regular convex polyhedron composed of two or more types of regular polygons meeting in identical vertices. They are distinct from the Platonic solids, which are composed of only one type of polygon meeting in identical vertices.

Icosidodecahedron and Cuboctahedron are one of the 13 Archimedean solids. For more refer to this link: http://www.geom.uiuc.edu/~sudzi/polyhedra/archimedean.html

There are 5 (and only five) Platonic solids namely Cube, Tetrahedron, Octahedron, Dodecahedron and Icosahedron.

 Truncation means cutting off the corners of a solid. We cut off identical lengths along each edge emerging from a vertex. This process adds a new face to the polyhedron.

What happens when we truncate Icosahedron?

If, when truncating the vertices of either the icosahedron or the dodecahedron, we move in exactly half way, the result is the icosidodecahedron. Thus, we can think of the icosidodecahedron as being the limiting case of either the truncated icosahedron or the truncated dodecahedron.

There's another Archimedean solid worth mentioning. That is Truncated Icosahedron. (polyhedron in Ten intersecting Planes)While truncating Icosahedron if we move 1/3rd we get Truncated Icosahedron. A good example of this solid is a Football. 
And if we move 1/2 we get Icosidodecahedron.

There's a reason why we arrive at Icosidodecahedron when we truncate either Icosahedron or Dodecahedron half way. The reason is they are Dual Solids where the vertices of one corresponds to faces of other. 

If we take Platonic Solids:
1) Dodecahedron and Icosahedron are dual solids.
    Explanation: Dodecahedron has 12 faces and 20 vertices
                       Icosahedron has 20 faces and 12 vertices

2) Cube and Octahedron are dual solids.
     Explanation: Cube has 6 faces and 8 vertices
                         Octahedron has 8 faces and 6 vertices.

3)  Tetrahedron is self dual. It has 4 faces and 4 vertices.

Refer to my Origami platonic pictures to verify the above fact. 


Some references:
http://www.geom.uiuc.edu/~sudzi/polyhedra/  - In this site, under Archimedean solids, there's lovely illustration of diagrams to help understand better. 



05 July 2013

Icosidodecahedron Curler Units


I loved cuboctahedron curler unit and got inspired to try Icosidodecahedron curler unit. Making single unit and assembly is same as Cuboctahedron.
When I first heard "Icosidodecahedron" I thought it is some complex module(the complicated name mislead me), after I completed I felt that this is easier than Cuboctahedron. In Cuboctahedron pieces kept coming out as we need to stretch paper in final assembly. In this one no such hassle, the units are easy and simple to assemble.

I had earlier done Icosahedron but this one is different. When I googled about Icosidodecahedron I learnt that it is a polyhedron which has 12 pentagons and 20 triangles. Each pentagon is surrounded by triangles on each of it's five sides and each triangle is surrounded by pentagon on each of it's three sides. Remember this line when assembling, nothing will go wrong and it's easier this way instead of following video. I watched the videos once and assembled myself easily.

In the above picture notice the pentagon formed by green, pink, yellow, orange, blue papers. Also notice the triangles surrounding this pentagon.

Further I was curious to know about this polyhedron, I made some search on the net. I found some really fascinating facts. I will post it in a separate post.
Cuboctahedron and Icosidodecahedron


Reference:  Designer: Herman van Goubergen: http://www.britishorigami.info/academic/curler.php
                  Presenter: http://www.youtube.com/watch?v=e5V2GzCxMXs by jonakashima
                                  http://www.youtube.com/watch?v=WoRKoXm-4rI  by barbabellaatje
No of units: (just) 30 units.
Paper size used : 3" x 3"  
Difficulty: easy to make units and simple assembly.
Paper used: normal color printer paper
Time: 2-3 hours
Started and Finished on 15 May 2013