12∙ Soft robotics¶

6th to 13th decemberr 2022

Update

December, 2023
July, 2023

Assignments

Ressources of the week

Research & Ideation¶

Adriana Cabrera and Lily Chambers was our instructor for this week.

References & Inspiration¶

Saskia Helsinka, Fabricademy final project 2022

Adriana Cabrera Knitting and soft robotics ![](https://adrianacabrera.github.io/SoftSkeletons/img/projects/SoftSkeletons/Fabrics/Knit1.GIF

Team of the week¶

For this week work together with Laora Guillerm , Marion BanonLauriane Beaumont<!--

Alginate ¶

Ingredients & Recipes¶

💡IngredientsRecipe

Testing the material.

Alginate paste already ready to use. Made one week before, waiting in the fridge.
- 100mL eau
- 3g alginate
- 5g glycérol 
- Chlorure of calcium

- Mix with robot : water + alginate + glycerol = Alginate paste
- Make a paste

Notes 🥽 Misunderstanding of the steps of making the different layers, to succeed in making a bladder-like bag. I wanted to add more layers of alginate onto the former ones, but it didn’t work because the calcium chlorure spray had already made it waterproof and unmixable.

Results

✅ Apply a thick layer --> Dehydrate > Squeeze out excess paste. > Insert air > 
Spray calcium chloride inside through the opening.

via GIPHY

Vinyl waffle¶

07/12/2022

💡 Our ideaToolsResults

Make a hot water bottle that would be shaped like waffles as an air path.

- Waffle iron
- Vinyl sheets
- Parchment paper

Inconclusive experimentation. The waffle iron heated up on all parts.
It would have been necessary to add parchment paper between the two sheets of vinyl.

Silicone drawing¶

07/12/2022

1- Making a file¶

With Marion, we decided to use one of my drawing to create the mold.

We opened it in Illustrator to vectorize the drawing.

After discussing with Capucine and Diane, she recommanded to affine the draw and resize it around 15cm.

2- Laser cutting¶

I used green plexi acrylic and glued the different layers to themselves.

3- Silicone¶

3.1- Mold silicone¶

🥽IngredientsRecipe

Use gloves to manipulate silicone because it sticks to everything.

- 100g silicone RTV 181
- 5g PRO R30

Cast in the mold
Let dry 24 hour

Unmolding

3.2- Make another layer of silicone for the fixation¶

IngredientsRecipe

- 33g silicone RTV 181
- 1,6g PRO R30

- Cast in the mold
- Let dry 24 hour

How to clean silicone?¶

Because silicone is a very complicated-use material, follow those steps to be as good as possible user :

wait until it’s completely dry
rub with fingers
throw in a trashbin, not in the sink

Aloe qui vivra¶

08/12/2022

Testing with natural plant.

empty aloe stalk
inflate with the pump

Results¶

Holiday’s heat¶

With Lauriane et Laora, we wanted to use the 3D printer to test heating the plastic film. Folloing the waves we made during the week 10. We start from the file to modify and adapt it.

Tools & Materials¶

Material	Details
Machine	Zmorph with no filament and normal buse (3D printer)
Tools	USB card adaptator for SD card, Neoprene, Plastic bag, Parchment paper
Software	Illustrator, Rhinoceros 3D, Cura
Fabrication files	Vectorial sinus , 3D sinus DXF