Commit 5025e873 authored by Adricen's avatar Adricen

update final proj

parent 9dd48670
## Final Project : NIRVIVAAD
**Team** : Caroline Roux, Laurence Cotin & Vy Hoang
##### ***A Low cost and Low Tech waterproof backpack in opensource***
#### Project Summary
After doing some researchs and talking to indians living in Kerala, we learned that a lot of people have lost valuable items during the flooding of the last summer. To prevent this from happening again, we decided to create a waterproof backpack so that people could protect and transport their personal belongings, like diplomas, certificates, family photos, precious and value objects during the flooding. It could also protect them in the relief camp from all the dirt there is on the ground. The bag is made out of tarpaulin which makes it really affordable, light and waterproof. The tarpaulin is also a really resistant material when the density is over 150g/m2. It can resist to scratches and impacts. Furthermore, this material is really common and easy to find in Kerala, which makes it easy to find and reduces the global cost of the bag. Our bag has shoulder straps to make it easier for people to carry. It also has two layers made out of tarpaulin to increase it's resistance to impacts and heavy loads. The joints are welded together using a straightener or an iron. This method seals perfectly the joints and allows stored items to stay dry. To close the bag, we have to roll the top 3 times to prevent the water from entering the bag. Finally, the idea is to upload the design in opensource by the fablabs's network. We will send the bag's template to the different FabLabs in Kerala, so they can cut with the lasercutter the patterns of the bags and send them to population. The indians can do the bags themselves with the instructions for use and the tarpaulin that they have or get. Our goal is to prevent the lost of valuable items which is a big part of the people's identity for the next flooding or disaster.
#### Story Board
- The fabrication starts before the fooding
- The design documents are sent to the 22 Fablabs in Kerala
- The patterns are cutted with the laser in the Fablabs
- The patterns are distributed to the population
- The people can make their own backpack with the instructions
- The indians can put their personal belongings into the bag
#### Fabrication Tutorials
**Laser Cut File Tutorial**
We made a template of our bag that can be cut in the laser machine of the FabLabs in Kerala. The template can be made out of any material. Slots were made on the template to allow people to trace easily with any pencil.
*image pattern design*
**Assembling Guide Tutorial**
After tracing the shape of the template on a piece of tarpaulin, people can cut out their bag and follow the "*Backpack Template Guide*" to know which parts they should fold.
![2. Assembling Guide](Images/2. Assembling Guide.jpg)
**Welding the Joints Tutorial**
After cutting and folding their bag, people can weld the pieces together using a hair straightener. For the welding we recommend using the following technique :
- Step 1 : Take baking paper and fold it into 8 layers.
- Step 2 : Insert the pieces of tarpaulin inside the baking paper.
- Step 3 : Close the baking paper with the tarpaulin.
- Step 4 : Insert the baking paper between the two plates of the straightener.
- Step 5 : Hold for 7 seconds at a temperature of 220 degrees Celsius, then release.
- Step 6 : Press firmly with pliers, then slide them over the entire surface that has been heated.
![3.Welding the joints](Images/3.Welding the joints.jpg)
**Close the bag** **Tutorial**
To close the bag and make it waterproof, we have to roll it three times and close it with the leash. It's an universel system that works if we follow the good instruction. If the system is not well close the water will enter. So it's a fondamental step to keep the stuffs dry.
![4.close the bag](Images/4. close the bag.jpg)
**Fasten the backpack Tutorial**
To make the leash of the bag, you need three strips of tarpaulin to create a braid system. The dimension of one strip is 3m x 0,01m. The braid is for the extremity part of the leash.
- step 1 : Make a knot with the three trapulin'strips A, B and C
- Step 2 : Take the strip A and put it between the strip B and C
- step 3 : Take the strip C and put it between the strip A and B
- Step 4 : Take the strip B and put it between the the strip A and C
- Step 5 : Do it again till the end of the rope
- Step 6 : Make a knot to close the system
![4. Braid Method](Images/4. Braid Method.jpg)
**Make the shoulder's straps :**
In order to carry the bag, the tie method is used. Therefore, you can adjust the shoulder straps as you wish.
- step 1 : Cross the two strips in the middle
- step 2 : The strip B never move
- step 3 : Surround the first strip with the other strip ( x2 times)
- step 4 : Take the strip A and put it below the knot
- step 5 : Put the strip into the knot
![5. Shoulder straps method](Images/5. Shoulder straps method.jpg)
#### The 1 euro backpack
To make our project possible, the most important thing was to make it affordable so everyone could have access to it. So we calculated the prices of the tarpaulin in India according to the various dimension and the density that would be around 150-180g/m2. We noticed that it cost 5 times less in India for the same product and more we can do bags on one tarpaulin piece the cheaper it is.
![Price comparaison](Images/Price comparaison.jpg)
#### Zero Waste
![Zero waste](Images/Zero waste.jpg)
#### Design Variation
#### Source internet and links
**Tarpaulin price** **in India** :
**Solder machine reference "how to build it"** :
#### Final Prototype
![Final Prototype](Images/Final Prototype.jpg)
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