Can You 3D Print a Robot’s Brain Out of Air?
What if a robot’s brain wasn’t made of wires… but air?
In this episode, we take a deep dive into microfluidic soft robotics and build a fully 3D-printed walking robot with its own built-in, air-powered control system.
It all starts with a transparent FDM-printed microfluidic chip — think of it like a sci-fi circuit board for air. Then we add a tiny rotary valve that acts as the mechanical brain, sequencing airflow with rhythmic precision. From there, we injection mold some squishy silicone muscles, slap on a few legs, and watch it come to life.
No solenoids. No Arduino flipping relays. Just pressure, vacuum, and a 3D-printed rotary valve.
And yes — it has googly eyes.
Because science is better with a little personality.
Whether you're into soft robotics, 3D printing, microfluidics, mechanical logic, or just want to see a strange little creature waddle across the table, this one's for you.
🧠 Explore fluidic logic
🌬️ Build rhythmic rotary valves
🦾 Injection Mold air-powered actuators
🤖 And take a step closer to truly integrated soft robots
Thanks for watching! If you enjoy squishy engineering experiments and want to follow the evolution of these bots, consider subscribing. There’s a lot more to come.
Timestamps:
0:00 – What is Microfluidics?
3:35 – Fluid Logic and Soft Control
7:07 – Prototyping the Valve
12:38 – Printing the Microfluidic Chip
17:48 – Adding Legs
📚 References & Sources:
[1] Karanassios, V. (2018). Microfluidics and Nanofluidics: Fabrication Technology and Application to Chemical Analysis. https://doi.org/10.5772/intechopen.74426
[2] Whitesides, G. M. (2006). The origins and the future of microfluidics. Nature. https://doi.org/10.1038/nature05058
[3] Mosadegh et al. (2010). Integrated elastomeric components for autonomous regulation of oscillatory flow. Nature Physics. https://doi.org/10.1038/nphys1637
[4] van Laake et al. (2022). A fluidic relaxation oscillator for soft robots. Matter. https://doi.org/10.1016/j.matt.2022.0...
🎥 Featured Videos & Inspiration:
Paper Microfluidics – • Lab 5: Paper Microfluidics
Embedded Microfluidic Valves - • The first embedded valve for microfluidics
Fluidic Oscillators in Soft Robotics – • A fluidic relaxation oscillator for reprog...
Microfluidic Rotary Valves – • Mechanical turning valves on a microfluidi...
Transparent FDM Prints – CNC Kitchen – • Transparent FDM 3D Prints are Clearly Stro...
🎵 Music Credits
Above The Clouds by | e s c p | https://www.escp.space
https://escp-music.bandcamp.com
A Few Jumps Away by Arthur Vyncke | / arthurvost
Music promoted by https://www.free-stock-music.com
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Lucid Dreaming by | e s c p | https://www.escp.space
https://escp-music.bandcamp.com
Over The Ocean by | e s c p | https://www.escp.space
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Dancing In The Rain by Zambolino | https://freetouse.com/music/zambolino
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Technology by 2TECH-AUDIO | https://2tech-audio.bandcamp.com
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Quasarise by | e s c p | https://www.escp.space
https://escp-music.bandcamp.com
Once Upon A Time by Chill Pulse | https://freetouse.com/music/chill-pulse
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