Commit a2980250 authored by Adricen's avatar Adricen

update img folder

parent 673417c0
......@@ -2,14 +2,6 @@
By Lucile CAU-JOINDANNES, Katarzyna CHLODEK, Noel LIMA
The project is a recycled plastic made buoy on which we attach bottles in order to allow a better orientation in submerged villages in Kerala.
## Presentation of the project
......@@ -20,7 +12,7 @@ The buoy help answering to the orientation problem in Kerala after flooding. In
The buoys would be placed on each side of every road of the submerged villages, and also at the crossroads (as represented on the image under). The codes of navigation will be used in order to have a good comprehension from every fisher boat that is confronted to it. They will need to pass in between the green and red buoys, with the green at their left (and therefore the red one at their right). There are also yellow buoys in case of danger or obstacle in the middle of the road. This implies the need of a helper going first to see if there are any, the simplicity of the buoy is then very practical because they can have some buoys to place with them. The location at crossroads allows people to orientate themselves as well as defining the roads and their width.
![crossroad final](images/crossroad final.png)
![crossroad final](img/crossroad final.png)
### Assembling
......
......@@ -10,9 +10,9 @@ By Lucile Cau-Joindannes, Katarzyna Chlodek and Noel Lima
The first idea we had to help the situation in Kerala, was to create a floating community space on fisher boats so people could support each other during difficult times. We then realized, that creating this device would keep boats in place instead of helping others, which was not a good finality.
![sketch départ](images/sketch-départ.png)
![sketch départ](img/sketch-départ.png)
![sketch 1](images/passerelle1.jpg)
![sketch 1](img/passerelle1.jpg)
......@@ -24,19 +24,19 @@ The first idea we had to help the situation in Kerala, was to create a floating
To have more informations on buoys and how they work, we made some researches on the navigation codes (colors and positions) and we also called FullOceans, a french company that sells different models of navigation buoys. We asked them, how buoys were made and if it was possible to build a low-cost, local made buoy. It seems to be quite complicated to a cheap but resistant enough buoy so we continued our researches.
![Capture d'écran 2018-12-18 à 14.29.38](images/FullOceans.png)
![Capture d'écran 2018-12-18 à 14.29.38](img/FullOceans.png)
### First prototype
We decided to test a prototype of a wooden central part that would be laser cutted, superposed with tarpaulin that would make it waterproof and also with places to attach plastic bottles so it would float.
![fichier-découpe-1-bois](images/fichier-découpe-1-bois.jpg)
![fichier-découpe-1-bois](img/fichier-découpe-1-bois.jpg)
![47580983_368188457059779_2930469710912815104_n](images/étape1-essai1.jpg)
![47580983_368188457059779_2930469710912815104_n](img/étape1-essai1.jpg)
![47683828_389601961777486_8295011849347268608_n](images/flotaison-essai1.jpg)
![47683828_389601961777486_8295011849347268608_n](img/flotaison-essai1.jpg)
As it is easy to conclude, this prototype was not efficient at all, because of two main reasons. The first one is concerning its resistance; tarpaulin is waterproof, but does not resist to branches or any other remains that could be in the water. Therefore, if the tarpaulin is open, the wood is exposed and can be destroyed easily by the contact with water. The other reason is the fact that this prototype was long and complicated to assemble, with many steps that would waste too much time in Kerala. They needed something easy and quick to assemble to help as many people as people in the shorter period of time possible.
......@@ -48,11 +48,11 @@ After watching the process of making these plastic products, we wanted to try wi
![mold1 - copie](images/mold1.jpg)
![mold1 - copie](img/mold1.jpg)
![shredding1 - copie](images/shredding1 .jpg)
![shredding1 - copie](img/shredding1 .jpg)
![mold-bake1 - copie](images/mold-bake1.jpg)
![mold-bake1 - copie](img/mold-bake1.jpg)
After searching on Internet some information on the process. We found that the temperature needed to melt this kind of plastic and to put the oven at, was 210 degrees. Also, the mold needed to be in wood that had a coat because otherwise, the plastic would stick to it and we would not be able to get the prototype out. As it is possible to see, it did not work out, because the wood burned before the plastic could melt.
......@@ -60,7 +60,7 @@ After searching on Internet some information on the process. We found that the t
For the pre-jury we created a form that would make a bubble shape with the bottles, with many faces. The visibility procured by this shape was great, but the making would be way too difficult (mold) and would need a lot of plastic.
![boia-de-plastico-com-garrafas - copie](images/image-synthèse-p2.png)
![boia-de-plastico-com-garrafas - copie](img/image-synthèse-p2.png)
After the comments, we decided to change the form for something more simple but still efficient for orientation. After this error, we decided to try the same experiment but with only cap plastic and a more appropriate wood that would more appropriate for the experiment.
......@@ -70,11 +70,11 @@ After the comments, we decided to change the form for something more simple but
We still thought about the different faces so the caps could be melted easily in the central part, but the top would be flat instead of 3D. In order to confirm that it would work, we experimented on the necessery distance to see clearly bottles. We also tested with the paint so we would have the complete effect.
![IMG_20190107_153244](images/test-visibilité.jpg)
![IMG_20190107_153244](img/test-visibilité.jpg)
![IMG_20190107_153410](images/visibilité2.jpg)
![IMG_20190107_153410](img/visibilité2.jpg)
![IMG_20190107_153459](images/visibilité3.jpg)
![IMG_20190107_153459](img/visibilité3.jpg)
#### Working the CNC machine
......@@ -82,9 +82,9 @@ We still thought about the different faces so the caps could be melted easily in
We also created a mold on Fusion 360, so we could work on the CNC.
![fusion-test1](images/fusion-test1.jpg)
![fusion-test1](img/fusion-test1.jpg)
![fichier-dec-cnc](images/fichier-dec-cnc.jpg)
![fichier-dec-cnc](img/fichier-dec-cnc.jpg)
By superposing the layers of wood, we can create a more efficient mold with less screws, so less steps and an easier assembling. The third part is the needed to compress the plastic as it is melting to have a compact result (the octogone is in 3D).
......@@ -92,13 +92,13 @@ By superposing the layers of wood, we can create a more efficient mold with less
With further research, we discovered that the octogonal form was not the more efficient or simple one and the result would not be as different than a regular form such as the rectangle. The rectangle could allows as many bottles as the previous shape but with a simplier mold.
![cnc-final](images/cnc-final.png)
![cnc-final](img/cnc-final.png)
#### Integration to the ground
Concerning the functionning of the buoy during the floods, we decided to put it in the ground so it could be protected from animals, people and other situations that could break or damage it. The first idea we had, was to put the central part in the ground with a place for bottles (apart from the central part), like this, people could come screw the bottles in place when needed.
<video src="images/bouee-orientation-évolution.mp4"></video>
<!-- <video src="img/bouee-orientation-évolution.mp4"></video> -->
We realized that in time of crisis, the priority was not to put the bottles on the buoy, so we decided that the bottles would be screwed manually but before the flood and that with a certain device, the complete buoy would be ejected from the ground.
......@@ -108,4 +108,4 @@ IMAGE OF NEW COMPOSITION
Finally concerning the position of buoys in the villages, we decided to put them on each side of the road at the start and finish of this one to delimit it easily, and also at the crossroads so everyone can see the width of streets.
![crossroad final - copie](images/crossroad final.png)
![crossroad final - copie](img/crossroad final.png)
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment