8. Soft robotics


inspirations

The Youtube Videos from de MIT channel was fascinating.

SAMUEL POINCLOUX ↓↓↓ PHD research on the physical properties of the knit stitch.

Some interesting website, where you can find tuto/explanations on Soft robotic :

https://opensoftmachines.com/ https://www.softmodbot.com/ https://softroboticstoolkit.com/ https://www.softrobotics.io/fab24

String test

After seeing those videos :



I was completely mad by the idea of creating bounces with nylon string.

Tools

- Nylon Yarn : You can find it at a fishing shop, they have more strengh.
- Pince
- Drill machine
- Heat gun
- Coton yarn (whatever, a yarn you like for weaving)
- Weight (from the knitting machine)

!!! Warning !!! I did not succed on creating bounce with Nylon... BUT at least, I tried !

Workflow

The difficulty was to find the correct distance, pull strengh between the drill, the nylon yarn and my hand that pulling the yarn with a pince.

First I did a test with a very thin nylon yarn.
video spinning loom video drill video bounce

I decide to change and bought a new nylon yarn more thicker because, my samples were too small to see any changes with the heat gun and I wasn't able to make one more longer.

video drill new yarn

The second try was a fail too, without knowing why, when I approach too much the heat gun to the nylon, it started to unroll on itself. So I decided to make a weaving to for instance "blocked" the unroll action, with beeing sure on my idea.

...

Everything falled because of the heat, with no solutions to fix the problem I decided to stop the experimentation :/

video :

Muscles test

videos inspirations of what I wanted to experiment :


The artificial muscle was developp by Mc Kibben Mc kibben

Workflow 1 → knitted muscles → fails ? → yes

Knitted elastic tube + elastique yarn :

Fail 1 :

Fail 2 :

tubular balloon knitted

Fail 3 :