Ultra-Low-Cost Technique Slashes Price of Soft Robotics | TechXplore

by Anika Shah - Technology
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Oxford University Breakthrough Slashes Soft Robotics Costs with Novel Fabrication Technique

Engineers at the University of Oxford have developed a rapid and ultra-low-cost method for manufacturing soft robotic actuators, potentially democratizing access to research and development in this rapidly evolving field. Published in Advanced Science on March 8, 2026, the technique utilizes readily available lab equipment and materials to produce programmable soft actuators for under $0.10 (US Dollars) each, in less than 10 minutes.

The Challenge with Traditional Soft Robotics Manufacturing

Soft robots, constructed from compliant materials, are gaining traction in applications like delicate object handling and search-and-rescue operations. However, traditional manufacturing methods – including silicone molding, specialized 3D printing, and complex textile lamination – are often time-consuming, expensive, and require specialized expertise, hindering widespread adoption and rapid prototyping.

A New Approach: Vacuum-Laser Fabrication

The Oxford team’s innovative approach combines commercially available vacuum-sealable plastic pouches with precision laser cutting. By removing air between layers before laser processing, the researchers can simultaneously seal and shape inflatable structures with high accuracy, creating programmable bending actuators in a single cut-and-seal step.

Key Components and Process

The fabrication process requires only three components: commercial thermoplastic vacuum pouches, a standard vacuum sealing machine, and a laser cutter or desktop laser engraver. Once fabricated, the actuators bend predictably when pressurized, enabling complex and programmable movements.

Demonstrated Capabilities

Using this method, the team successfully built a soft robotic gripper capable of lifting objects 25 times its own weight, as well as ultra-light crawling and swimming robots. They even produced inflatable animal structures, including turtles and cranes.

Performance and Durability

The thermoplastic structures demonstrated strong output forces at relatively low pressures and were able to withstand up to 100,000 inflation–deflation cycles during durability tests.

Computational Design Framework

Researchers also developed a computational design framework that allows engineers to “program” the bending behavior of the actuators by adjusting geometric parameters. This enables the creation of predictable shapes, including spirals and letter-shaped structures.

Future Directions

The team plans to explore other compatible thermoplastic materials and adapt the method to enable more complex motions, such as twisting and multi-directional movements.

Implications for the Field

Professor Antonio Forte, Principal Investigator from the University of Oxford’s Department of Engineering Science, stated that this advance could “significantly democratize and accelerate soft robotics research and prototyping across laboratories, start-ups, and educational settings.” This streamlined process promises to accelerate innovation and broaden participation in a field traditionally constrained by expensive and specialized manufacturing processes.

Postdoctoral Researcher Ashkan Rezanejad added that the method could be particularly valuable for education and attracting students to soft robotics by enabling creative and artistic projects.

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