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Oxford Engineers Develop Ultra-Low-Cost Method to Build Soft Robots in Minutes

Imagine creating a robot that can bend, grip, crawl, or even swim—all in under 10 minutes and for less than ten cents. That’s exactly what a team of engineers at the University of Oxford has achieved, opening the door for rapid, affordable, and creative experimentation in the world of soft robotics. Their groundbreaking work, published in Advanced Science, could transform how researchers, start-ups, and even students approach the design and construction of flexible robots.

Breaking Barriers in Soft Robotics

Soft robots are made from compliant, bendable materials that mimic the flexibility of living organisms. Unlike traditional rigid robots, soft robots can delicately handle fragile objects, squeeze through tight spaces, or adapt to unpredictable environments. These abilities make them ideal for applications such as search-and-rescue operations, minimally invasive surgery, wearable devices, and adaptive manufacturing.

However, despite their promise, soft robots have been challenging to produce. Traditional methods often involve silicone molding, complex 3D printing, or specialized textile lamination techniques. These approaches require expensive equipment, extensive time, and significant technical expertise—barriers that limit accessibility for smaller labs and educational programs.

Professor Antonio Forte, Principal Investigator at Oxford’s Department of Engineering Science, emphasizes the significance of their new method:

"By lowering the financial and technical barriers to fabrication, this advance could significantly democratize and accelerate soft robotics research and prototyping across laboratories, start-ups, and educational settings."

A Simple, Low-Cost Fabrication Method

The key to this breakthrough is simplicity. The Oxford team combined commercially available thermoplastic vacuum-sealable pouches with precision laser cutting. By removing air between layers before laser processing, they can both seal and shape inflatable soft robotic actuators in a single step. The result is a programmable bending actuator ready for use in minutes.

Remarkably, the process requires only three components:

  1. Thermoplastic vacuum pouches – costing less than $0.10 per actuator.

  2. A standard vacuum sealing machine – commonly found in kitchens and laboratories.

  3. A laser cutter or desktop laser engraver – widely available in makerspaces and engineering labs.

This straightforward approach drastically reduces both time and cost compared to conventional fabrication methods, while still allowing precise control over actuator geometry.

Creating Movements and Shapes

Once fabricated, these inflatable actuators bend in predictable ways when pressurized. By controlling the size and placement of folds and cuts, engineers can "program" the actuator to perform complex movements.

Using this technique, the team created:

  • A soft robotic gripper capable of lifting objects 25 times its own weight.

  • Ultra-light crawling and swimming robots that can move across surfaces or water.

  • Inflatable animal structures, including turtles and cranes, highlighting the creative and educational potential of the method.

Ashkan Rezanejad, Postdoctoral Researcher and lead author, explains:

"By enabling creative and artistic projects, our method could be particularly valuable for education and attracting students to soft robotics."

These examples show that soft robotics is no longer limited to expensive labs or specialized engineers. Now, schools, makerspaces, and start-ups can experiment with flexible robotics without prohibitive costs.

Performance, Durability, and Design Flexibility

Affordability is only part of the story. The Oxford team rigorously tested the mechanical performance of their actuators. The results were impressive:

  • Strong output forces at relatively low air pressures.

  • Durability to withstand up to 100,000 inflation–deflation cycles without significant wear.

Such reliability ensures that these inexpensive actuators can handle repeated use in practical applications.

To make design even easier, the researchers developed a computational design framework. This tool allows engineers to predict how the actuators will bend based on their geometric parameters. The framework can produce a variety of shapes, from simple spirals to letter-shaped structures, giving designers unprecedented control over soft robot movements.

Applications and Future Potential

Soft robotics is expanding into many fields. Potential applications include:

  • Medical devices: Minimally invasive surgical tools that can navigate the human body with minimal damage.

  • Wearable technologies: Flexible exoskeletons or assistance devices that adapt to human movement.

  • Industrial automation: Robots that handle delicate components or materials without breaking them.

  • Exploration: Soft robots that operate in hazardous environments, including underwater, disaster zones, or confined spaces.

By simplifying fabrication, the Oxford method enables rapid prototyping, letting researchers test, refine, and scale new designs far more quickly than before.

Looking ahead, the team plans to explore:

  • Other thermoplastic materials compatible with their approach.

  • More complex motions, such as twisting, multi-directional bending, and articulated movements.

  • Educational integration, allowing students to experiment with soft robotics in classrooms and labs.

These advances could make soft robotics accessible not just to scientists, but also to hobbyists, artists, and innovators around the world.

Democratizing Soft Robotics

One of the most exciting aspects of this work is its potential to democratize a cutting-edge field. Expensive equipment, long production times, and technical complexity have historically limited participation in soft robotics research. By bringing costs down to mere cents per actuator and reducing fabrication time to under 10 minutes, Oxford engineers are opening doors for anyone with basic lab access or even a desktop laser cutter to create, experiment, and innovate.

This democratization could accelerate the pace of discovery, allowing small labs, start-ups, and educational programs to test new ideas quickly, iterate on designs, and contribute to a rapidly evolving field.

Conclusion

The Oxford University team’s ultra-low-cost, rapid fabrication method represents a significant step forward in soft robotics. By combining vacuum-sealable thermoplastics with laser cutting, they have made it possible to create durable, high-performing soft actuators in minutes for less than ten cents each. Their work not only lowers the financial and technical barriers to entry but also encourages creativity, education, and rapid innovation.

As Professor Forte puts it, this method could "significantly democratize and accelerate soft robotics research and prototyping across laboratories, start-ups, and educational settings."

With applications spanning medical devices, wearable tech, industrial automation, and exploration, the possibilities for soft robots are growing fast. Thanks to this innovation, the era of accessible, low-cost, and flexible robotics may have truly begun—inviting a new generation of engineers, students, and makers to experiment, create, and transform the way we think about machines.

Reference:
A. Rezanejad, M. Mousa, Y. Wang, M. Adlerstein, J. Yao, and A. E. Forte, “Vacuum–Laser Fabrication of Programmable Soft Actuators.” Advanced Science (2026): e22500. https://doi.org/10.1002/advs.202522500

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