Stanford's Shape-Changing Soft Robot: A Squishy Innovation

company logo for Stanford University Stanford University

Country: United States of America

Year: 2020

Summary

This soft robot by Stanford can morph like a high-tech balloon animal, changing shape & roaming freely without needing constant power source

Status: Prototype, In development, Research

Operation: Semi-autonomous, Teleoperation

Robot Type / Domain: Research

Tasks: Rolling Motion, Navigating Rough Terrain, Object Manipulation, & More

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Development process and details (IROS2020 Half-day Workshop)
Last updated: October 04, 2024
Written & Reviewed by addoobot team.
Authored by Dr. Mahdi Hassan, a robotics enthusiast with extensive experience and a PhD in robotics and engineering combined. Connect with me on LinkedIn.
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Meet Stanford's Shape-Changing Soft Robot

Imagine having a robot that can change shape like a balloon animal—except this one is high-tech and way cooler. Stanford’s new soft robot can do exactly that. Called an isoperimetric robot, it's built from an inflatable tube that twists into triangular shapes.

But here’s the best part: it doesn't need to be hooked up to a power source or have air constantly pumped into it to work its magic. This shape-shifting bot can grab objects, move around freely, and handle tasks all on its own. Let's break down why this transforming, free-roaming robot is simply incredible.

Shape-Changing Wizardry

At first glance, Stanford’s soft robot might just look like an inflated tube—but don't be fooled! This robot can twist and reshape itself, thanks to a clever mechanism that pinches and moves its structure. It can completely transform its shape while keeping its overall size the same. That means it can wrap around objects, lift them up, or even roll forward by adjusting its weight. And here’s the kicker—it doesn’t need a bulky power source or any fancy equipment. Once it’s inflated, it’s ready to move on its own, no strings attached!

Why is it So Special?

Traditional soft robots usually need to be tethered to a power source—like an air compressor—which limits how far they can go. But this new design from Stanford changes the game. Once inflated, the robot is free to move around on its own, with no cords attached!

The team at Stanford combined the best of both worlds: the softness and flexibility of soft robots with the strength and stability of traditional robots. This makes it not only safe to use around people but also tough enough to handle tricky environments. It’s soft for safety and sturdy for real-world tasks—pretty much a win-win!

From Earth to Space

The gentle and flexible build of Stanford's shape-changing soft robot makes it ideal for helping humans with tasks like carrying objects or navigating rough terrains, especially in places where traditional robots would have a tough time. It could be a lifesaver in disaster zones, squeezing through tight spaces or crawling over debris where other robots might struggle.

But the potential for this soft robot is out of this world—literally! The team sees it as a perfect candidate for space exploration! Picture this robot on another planet, morphing to tackle rocky landscapes or fitting through narrow gaps. Lightweight and compact, it’s built for the tough demands of space travel.

A Robot That Learns and Adapts

What makes this robot even cooler is how adaptable it is. The robot can efficiently change shape to fit different environments using simple motors to shift air inside its body. This adaptability opens up all kinds of possibilities for future robots that could work side by side with humans—whether it’s helping with heavy lifting or safely navigating our homes and workplaces. Imagine robots that can adjust on the fly, working more closely with people and handling everyday tasks with ease.

What’s Next?

The team at Stanford is already buzzing with ideas for what’s next. They’re playing around with new shapes and even thinking about teaching this robot to swim! As the field of soft robotics keeps growing, we could see a whole new wave of robots that change the way we interact with machines—making them smarter, safer, and more adaptable than ever before.

This shape-shifting bot is just the beginning. It’s paving the way for robots that won’t just be for industrial tasks but could be integrated into everyday life. Whether it’s helping astronauts on Mars or assisting in rescue missions right here on Earth, this squishy marvel is opening up exciting new possibilities in the world of robotics.

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Top 5+ Qualities (by addoobot)

What we find to be the top qualities of Stanford's shape-changing soft robot:

  • Shape-changing capability: The robot can transform its structure by reshaping its inflatable body into different geometric forms, allowing it to adapt to various tasks and environments.
  • Efficient air management: The robot doesn't need continuous air pumping; it reuses the air within its structure by moving it around with simple motors, which improves efficiency.
  • Untethered operation: Unlike most soft robots that require constant power or an air source, this robot operates freely after inflation, making it highly mobile.
  • Lightweight and portable: Its inflatable design makes it compact and easy to transport, especially useful for space exploration or disaster recovery missions.
  • Safe for human interaction: With its soft structure, the robot can work safely around humans without posing a threat of injury.
  • Versatility: Its adaptable structure allows it to perform a range of tasks, such as picking up objects, navigating rough terrains, and even potentially swimming​

Technical Specifications

• 3 series pouch motors attached around body

• Maintain constant air volume & overall length

Actuation: Pneumatic

Number of Actuators: 3

Body Material: Airtight, thin, and flexible material

No more specs to show.

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