Watch this tiny 3D-printed robot jump to six times its height

3d printed robot jumps to six times its height screen shot 2015 07 11 at 6 23 08 pm
Don’t judge a book by its cover, and don’t judge a robot’s vertical by its size. Scientists from Harvard and the University of California have 3D-printed a tiny little robot that can jump 2.5 feet — pretty impressive considering that the robot itself is only the size of a soccer ball. Attaining heights of about six times its own dimensions, this robot “jumps” much in the same way a spaceship takes off, by triggering a small explosion that propels it into the air.

With its flexible, inflatable base, the robot is as durable as it is powerful, so no matter how high it manages to leap, it lands softly and safely. When preparing for a jump, the robot inflates its legs, then lights a mixture of butane and oxygen that ultimately gives it the kinetic energy it needs to go skyward. According to results published recently in Science, the robot was able to jump successfully 100 times without causing any damage to itself, which is probably more than we can say for some human athletes.

The resilience of the robot is attributed to the ingenious combination of both soft and hard materials that Michael Tolley, one of the paper’s co-lead authors, says will give rise to a “new generation of fast, agile robots that are more robust and adaptable than their predecessors and can safely work side by side with humans.” Borrowing from Mother Nature and animals who exhibit this same amalgamation of textures and rigidity, scientists revealed that the mollusk actually served as a key point of inspiration for the robot.

“In nature, complexity has a very low cost,” Tolley said. “Using new manufacturing techniques like 3D printing, we’re trying to translate this to robotics.”

Robert J. Wood, Harvard’s professor of engineering and applied sciences and senior author of the study, noted in a statement, “This robot is a demonstration of a method to integrate the rigid components with the body of the soft robot through a gradient of material properties, eliminating an abrupt, hard-to-soft transition that is often a failure point [in robotic design].” And it could have some pretty exciting implications for the future of robotics.

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