recommended reading

Watch the First Self-Folding Robot Use Origami to Crawl

Wyss Institute/Seth Kroll

Imagine a robot that ships as a flat pack and assembles itself on demand. Search-and-rescue missions might use them to squeeze into and scout the inside of a collapsed mine. They could be deployed into space for autonomous exploration, or dropped into disaster zones for rapidly-created shelters. And wouldn’t it be great if your next piece of IKEA furniture could put itself together? While we don’t rely on robots for such tasks today, it’s primarily because they’re expensive, and can take years to develop.

Now, a collaboration between engineers and computer scientists from Harvard University and the Massachusetts Institute of Technology hopes to change that, laying the foundation for wider access to at least certain kinds of robots. The group, led by Robert Wood, a professor of engineering at Harvard and founder of its Microrobotics Lab, describes the method in a paper published today in Science. Here’s what it looks like in practice:

Just as interesting as a self-folding robot is the inspiration for its design: Origami, the Japanese art of paper-folding. The idea isn’t revolutionary—the team has used computational origami to build a self-folding inchworm and lamp, but both needed human intervention. “We wanted to build a complex machine that could fold itself and operate without any human support,” says Sam Felton, a doctoral candidate in Wood’s Harvard Microrobotics Lab. The effort, the team says, proves that high-functioning robots can be assembled autonomously.

So how does it work? The robot is made from composite paper and Shrinky Dinks (plastic sheets that shrink on baking—yes, these) and equipped with two motors, two batteries, and self-folding hinges that are activated by heat. A microcontroller—which Felton refers to as “the robot’s brain”—heats the hinges via electrical signaling. “When electricity is applied [to the hinges], they heat up—like turning on a light bulb—causing them to contract,” Felton explains. After just four minutes, the robot has gone from flat to functional, and stiff enough to crawl away. (It can’t yet reverse the process and unfold).

Currently, the materials limit what the robots can do. The Shrinky Dinks are simple and cheap, but come only in standard letter-sized sheets and can’t support much weight. There are stronger materials out there, Felton notes, but not yet in the size they would need to build a bigger robot.

Much smaller robots would also be tricky. Right now, the team uses a commercial laser system to make the robot parts. It works to a resolution of one millimeter (0.04 inches), which was already imprecise enough to pose problems. “One of the biggest challenges for making this robot was packing all of the necessary components onto the sheet in such a way that the heat from the hinges didn’t affect the other electrical components,” Felton says.

Still, with better materials, these limitations could be overcome. Since the method doesn’t require complex parts and construction, it’s cheap—just $100 for the raw materials—and quick. It might not necessarily produce the kinds of powerful and sophisticated machines that build cars and perform surgery, but the team believes there’s a lot of scope to increase the foldable robots’ computational power and complexity of movement. Their ultimate goal is a “24-hour robot shop,” where you could walk in today asking for a playmate for your cat, and pick up your feline’s friend tomorrow.

Reprinted with permission from Quartz. The original story can be found here

Threatwatch Alert

Thousands of cyber attacks occur each day

See the latest threats


Close [ x ] More from Nextgov

Thank you for subscribing to newsletters from
We think these reports might interest you:

  • Featured Content from RSA Conference: Dissed by NIST

    Learn more about the latest draft of the U.S. National Institute of Standards and Technology guidance document on authentication and lifecycle management.

  • PIV- I And Multifactor Authentication: The Best Defense for Federal Government Contractors

    This white paper explores NIST SP 800-171 and why compliance is critical to federal government contractors, especially those that work with the Department of Defense, as well as how leveraging PIV-I credentialing with multifactor authentication can be used as a defense against cyberattacks

  • Toward A More Innovative Government

    This research study aims to understand how state and local leaders regard their agency’s innovation efforts and what they are doing to overcome the challenges they face in successfully implementing these efforts.

  • From Volume to Value: UK’s NHS Digital Provides U.S. Healthcare Agencies A Roadmap For Value-Based Payment Models

    The U.S. healthcare industry is rapidly moving away from traditional fee-for-service models and towards value-based purchasing that reimburses physicians for quality of care in place of frequency of care.

  • GBC Flash Poll: Is Your Agency Safe?

    Federal leaders weigh in on the state of information security

  • Data-Centric Security vs. Database-Level Security

    Database-level encryption had its origins in the 1990s and early 2000s in response to very basic risks which largely revolved around the theft of servers, backup tapes and other physical-layer assets. As noted in Verizon’s 2014, Data Breach Investigations Report (DBIR)1, threats today are far more advanced and dangerous.


When you download a report, your information may be shared with the underwriters of that document.