HS+-+DT+-+S1+-+Bhargabi

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 * Design Folder - Bhargabi**

**Investigate:**
===**Unit Question - The DT lab is overflowing with cardboard. How can cardboard be used to make a stable chair with back support capable of holding a 150 lbs person without using any fasteners, glue or tape?**===

**UQ - Interpreted**
====**The extra cardboard can be used again to create a stable piece of furniture, in this case a chair. This is a way to be able to reuse and recycle the extra cardboard which is kept in the DT lab, this also relates to AISD's mission statement which talks about living in a sustainable world. The main aim of this chair which is a product of a very sustainable idea, to have a back support and to be able to hold up a 150 lbs person.**====

**Design Brief**

 * I will be designing this product as a piece of furniture for my room at home, it will be an interesting concept and design. According to the aim of the project, i think this will be a suitable goal because i need proper sitting arrangements in my room, this is helpful because when friends come over, it is very hard to make sitting arrangements. The product needs to be attractive to add a sober look to my room.**

**Design Specification**

 * The product needs to...**
 * 1) **use cardboard as the main material**
 * 2) **be able to hold up a 150 lbs person**
 * 3) **have a back support**
 * 4) **not use any fasteners, glue or tape**
 * 5) **be attractive**
 * 6) **be strong**
 * 7) **needs to fit into my room**
 * 8) **be safe**
 * 9) **be stable**
 * 10) **limit the wastage of cardboard**


 * Guiding Questions:**


 * **What types of joints would be good for my product designing?**
 * **What is the pro's of using cardboard to make my chair?**
 * **What sort of problems will I face while designing the product?**
 * **How can I make sure that I limit the wastage of the resource?**
 * **How will I design the the product so that it fits in my room?**
 * **Is there any way to make sure that the final product would be safe?**


 * Research:**
 * Frank Gehry is a very well known cardboard furniture designer, one of his designs which is very well known and famous is the wiggle chair. He works with architecture and is one of the most important architects of today. According to my research, he enjoys to use unusual resources for his products. His designs of chairs and other such materials are often referred to as robust and stable which is why he is a very good architect in modern times. Looking at some of his various projects which are not always related to furniture, it shows a repetition in the use of distorted objects.**


 * The following picture is the wiggle chair which was designed by Frank Gehry:**




 * There is another design of furniture created through the use of cardboard which I found interesting, a design by an interior deisgner;**
 * Edith Szilvasy.**


 * Cites used:**
 * []**
 * []**

**5th September, 2011**

 * Design one: This design has both pro's and cons which can be pointed out with any difficulty because even though the design is very interesting, and is aesthetically good but it's main flaw is the capability to hold up things, when tested, the design failed to hold up a certain amount of weight. Some changes that could be added to the design would be to add good joints and connections in order to make it stronger, and when this is represented and created in real life, it could be a strong yet aesthetic design, but this needs to be worked on.**


 * Design two: This is a design that shows a very important idea regarding the importance of joints and the benefits of putting them in use. What I noticed about this design is the strength of the center point, due to which i think this can be something which i could apply in my product in order to make it successful and accomplish goals such as; holding up a 150lbs person. Regardless of that, this model needs to have been worked on more and I could have added other requirements from the actual product into this, which would have helped me brainstorm ideas on what i do or do not want to make.**

[[image:Photo_on_2011-09-07_at_10.16_#3.jpg width="512" height="385"]]

 * Design three: This was a design I came up with when i was playing around and experimenting the different idea's of how I could use paper to make stable chairs, this design has been able to fulfill some expectations from the actual product. Some of the things it has managed to do is to create a back support and in this design, the back and the sides are the strongest part, the weakness in this product is regarding the connection of the seat and the arms, this is a solution I will need to find regardless of whether I end up doing this design or not. This design also does not take up too much space hence will be suitable for my goals.**




 * Research: Guiding Questions-**
 * //__Benefits and strengths of using a cardboard:__// I learnt that there are many benefits and strengths of using a cardboard, this is good because now i will be able to keep this is mind and using it to make them major strengths of the product.**


 * __//Folding cardboard://__ Research about effective methods and innovative designs.**
 * **This website showed many different ways to fold cardboard and finished products, something I found interesting was that most of these designs were made up of mostly folds, and had a lot of triangles as a part of their design. This made me think about what I wanted in my final design.**




 * __//Ways to fold cardboard://__ This was something that was very important for me because I had problems in folding the cardboard in the quarter scale model which made me curious about if the actual cardboard could be easily folded or will also be required to be folded. Something I also questioned myself about was if it is likely for the product to face manufacturing problems. Something I learnt from this research was that scoring the cardboard before making cardboard's will be a very effective solution to this problem.**




 * Works cited:**
 * http://blogs.howstuffworks.com/2010/07/01/how-cardboard-works/**
 * http://foldschool.com/_objects/objects_stool/objects_stool.html**
 * http://www.ehow.com/how_6578200_fold-cardboard.html**


 * Size of a normal chair -**
 * http://www.chairsource.ca/design_howto_chair.asp**

=**Design - Plan:**=
 * Designing on sketch up:**
 * Design 1**




 * Design 2:**


 * Process of designing the quarter scale model**
 * Planning of the final product; 1/4 scale model**


 * According to my sketch up design, the product only consisted of two patterns that were replicated in order to form the chair. I started of with drawing out measures and cutting up one part at a time, i realized that the left piece (as shown in the image below) which is in the shape of a chair needs to be made 4 - 5 times, and one very efficient way to do this is by putting two pieces together in order to make a 6"8 rectangle and cutting out the shapes from there on, this was something I had discussed with my DT teacher while designing the chair on sketch up. This is one of the benefits of this product because their is minimal waste of materials and according to the requirements of the chair, the size is suitable and will be made out of the provided cardboard which has been used before.**


 * As i mentioned before, this piece can be replicated in a very easy way, all we need to do is draw three 5"8 rectangles, and cut out the shape in which the back support is 1" and the bottom of the chair till the seat is 4". These pieces can be drawn together and the only thing we need is to have a little bit of space in between the rectangles incase there is a mistake made while cutting them out.**




 * When we are done with cutting both the pieces as many times as needed, you can actually see that it was not very hard to get to this stage. One of the only challenges I faced was to be able to cut out the pieces in a proportional manner, this was actually a very important part of creating a model of this size because the material is not as thick as actual cardboard and the slots had to be made very well in order to hold up the chair well, if it was not proportional then, it would not stand up properly.**
 * While designing the chair, it was important to insert the slots properly, something i realized was that, when I first designed the 1/4 scale model, the paper that was inserated did not have slots, it was only the main body of the chair that consisted of 1" cuts to insert the 1" wide paper pieces. After inserting all the pieces I noticed that, i would need to cut 1/2" from every piece in order for it to a stable chair which is comfortable and well made. Another problem was that, the cardboard towards the front of the chair made me think that it needed a little bit more length so I decided to change the 5" to 6". This was more required for the aesthetics because it did not effect the support of the chair, all it did was fold up a little bit which made it look like a manufacturing defect.**



[[image:Bhargabi_-_chair_13_resized.jpg]]**This is the final 1/4 scale model of the chair! :)**

 * Production plan -**
 * Materials needed:**
 * 1) **Cardboard**
 * 2) **Knife**
 * 3) **Mat; to cut on**
 * 4) **Ruler; with inches shown**


 * Time required:**

=**Create:**=