update

Readme.fr.md

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 [![fr](https://img.shields.io/badge/lang-fr-red.svg)](./Readme.fr.md)
 [![en](https://img.shields.io/badge/lang-en-green.svg)](./Readme.md)
 
-:camera: _**des photos seront ajoutées plus tard pour clarifier les explications**_ :camera:
-
 **La version francaise du readme sera ajouté plus tard...**

Readme.md

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 [![fr](https://img.shields.io/badge/lang-fr-red.svg)](./Readme.fr.md)
 [![en](https://img.shields.io/badge/lang-en-green.svg)](./Readme.md)
 
-:camera: _**pictures will be added later for more clarity**_ :camera:
+## 1 - Design
+
+_Coming soon !_
+
+## 1.a - Membrane design
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_membrane_insert.png?raw=true" alt="Image not available" height="250" />
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_separate_membrane_and_insert.png?raw=true" alt="Image not available" height="250" />
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_separate_membrane.png?raw=true" alt="Image not available" height="250" />
+
+_Coming soon !_
+
+## 1.b - Stopper
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_stopper.png?raw=true" alt="Image not available" height="300" />
+
+_Coming soon !_
+
+## 2 - Assembly
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_step1.png?raw=true" alt="Image not available" height="300" />
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_step2.png?raw=true" alt="Image not available" height="300" />
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_step3.png?raw=true" alt="Image not available" height="300" />
+
+_Coming soon !_
+
+## 3 - 3D printing
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_separate_membrane_sliced.png?raw=true" alt="Image not available" height="400" />
+
+<img src="https://git.deuxfleurs.fr/distorsion/3D-printed-parametric-respiratory-one-way-valve/media/branch/main/pictures/one_way_valve_sliced.png?raw=true" alt="Image not available" height="400" />
+
+_Coming soon !_
+
+## 4 - Parameters
+
+If you want to changes the parameters of this design, you can edit the _Freecad_ file [3Dfiles/one_way_valve.FCStd](./3Dfiles/), which is fully parametric, with parameters present in the **Spreadsheet**.
+
+If you want/need to change parameters, we would suggest you play with them and try to understand the impact of each parameters. We will only explain a small selection of important parameters that you are most likely to have to edit.
+
+We will only describe a few parameters that you are most likely to have to change.
+
+### 4.a - Structural parameters
+
+_**wall_thickness** :_ \[_default=2.7mm_\] The wall thickness accross the print (_except for the strap attachment point_). Can be tweeked to make the print either stronger or weaker but lighter and faster to print.
+
+_**snap_fit_clearance** :_ \[_default=0.09mm_\] The clearance between two objects that would fit togeteher with difficulty. Also impact the clearance betwen threads.
+
+### 4.b - Geometrical parameters
 
 _Coming soon !_