← Isha JainHardware · Soft Robotics

Hardware · Creative

Soft Robotic Jellyfish

seven pneumatic silicone jellyfish, part robot, part sculpture

May 2026

SiliconePneumaticsSoft roboticsPrototypingFusion 3603D printing
Soft robotic jellyfish exhibition

Inspired by my favourite animal, the turritopsis dohrnii (the immortal jellyfish), I created an exhibition of 7 soft robotic jellyfish. They are silicone based, using Ecoflex-30 and Ecoflex-50, and pneumatically actuated using syringes, with fabric integrated in the design inspired by Thomas Jackson.

Jellyfish detail
Jellyfish mould

I designed and 3D printed my own moulds, learning about wall thickness, air chamber shapes, and how form affects function. I fabricated everything myself using a vacuum chamber and oven for curing. Along the way I ran into many failure modes including popping, air gaps, variability in stiffness, and tubing fitting positions.

Fabrication process

inflating a finger

Through each iteration I made changes: using fabric for the bottom layer, printing separate moulds for the bottom layer, and adding a tubing adapter directly into the CAD. The final exhibition brought all 7 jellyfish together.

Exhibition
The finished soft robotic jellyfish
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