kana.ito-russo
First session :
We have grouped together with Charlotte and Lily and Kana. And worked on a project dedicated to Yousra who has mobility problems with her hands (especially fingers).
Two weeks before we talked to her and she said that some students already gave her a prototype for an object to be able to cut food. But this prototype is not “aesthetic” and the protection is not cleanable and finally the magnet uses too much space (and so the protection is not smooth).
So first we were thinking about making the knife less large to prevent it from taking too much space, so we put the finger holes directly on the handle. But after testing it ourselves we understood that it was a mistake because the knife was no longer inclined as it was.
Here is the prototype :
And we were losing the “goals” of the project (that is the issues that we talked about at the beginning).
So we came up with those ideas :
-Using a 3D printer to redo the protection so that the material can be cleanable. We need now to think about which material to use and also know how to use the 3D printer.
We tested if some materials in the lab could be “burned” to make the surface look smoother.
And actually it is possible but complicated, depending on which material we use.
-Putting the magnet inside the protection.
-Making the handle in wood (Yousra likes it). We searched for which wood to use (a light one).
Second session :
For the first time, we learnt how to use FUSION AUTODESK to modelize a 3D system.
Each of us tried to modify the knife.
Third session :
We mesured the knife and modified them to make the new prototype. And so, we searched in the lab with Dimitri the right wood to use for the handle. And we draw the prototype above the wood.
Fourth session :
First of all, we used FUSION to do the handle : We imported the picture and put it into scale and we used 'lines' to put point and used the 'tangent' to curve the side of the handle.
We used the laser cutting to see how the handle would be. And we talked to Yousra about it. She agreed so now we need to make it into wood.
Fifth session :
Today we did another prototype of a more curved handle. Because we need to show Yousra several possibilities for this handle. Also, we used printer cut to produce layers of this prototype in paperboard.
We also did the same with the one on the fourth session.
All this to have a better vision of the two possibel handle.
The first one, we (and Yousra) thought was the best, we did it on wood to make it more real.
Here are the pictures :
Sixth session :
Today Yousra was supposed to be here to check our prototypes but finally she could not. So, we used this session to make those more usable. So we sand the wood and sticked together the layers of paperboard.
Here are the pictures :
Seventh session :
-The attachment issue -> We tried to look at different ways to attach the blade to the handle and came up with a possible solution : a metal tourillon to have a flat surface and a good support at the same time.
-The cover ( making the inside of the cover more round to make it cleanable or making the inside fit perfectly the blade) -> We started to modelize on fusion some prototypes as well as making a cardboard version. We still have to work on this part by taking into account the cleanability, practicity and aesthetic.
Eighth session :
Yousra coudn't come today but we sent her as always some updates of our project.
So, last week we tried to attach the blade and the handle with...
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