hexapod

Soon, that whiny kid from Transformers won't be the only one who gets to play with giant walking robots. The makers of Project Hexapod are Kickstarting Stompy, a honking huge two-seater hydraulic robot.

Oh, Stompy, where have you been all my life? I can't wait to some day meet all 4,000 pounds of you and watch as your six legs destroy everything in their path. Despite your frighteningly arachnid shape, you have an adorable moniker. … Read more

Cockroaches are way faster than you and me. Relative to their body weight, they can flee at the equivalent of hundreds of miles per hour and are gone long before your newspaper hits the floor.

But researchers from the University of California at Berkeley recently described how cockroaches can also run toward a ledge and then flip around to its underside in the blink of an eye, effectively disappearing from predators. Now they're working on robots that can do the same. … Read more

In the world of robots, there are those that fall into the cute category, and those that just make your skin crawl.

The MorpHex robot is more of the creepy variety; well, creepy but cool, that is. Designed by Norwegian engineer Kare Halvorsen (aka Zenta), the MorpHex looks to be a big translucent ball, but it's actually a hexapod that can sprout legs and scamper away or chase you, depending on whether it's used for good or evil. … Read more

While I've always been a little scared of spiders, watching student Matt Bunting's hexapod robot dancing has all but cured me. Maybe it's the combination of the folk guitar and little leg sways in the below video, but all of a sudden, spiders (at least the robotic kind) look so damn cute.

Cuteness aside, the hexapod bot has gotten some attention from high places. Two days after Bunting, a University of Arizona electrical-engineering senior, posted a YouTube video of his bot, Intel ordered two of them to promote its Atom processors at trade shows and engineering meetings. The robot uses Intel's 1.60GHz Atom Z530 and US15W chipset. It runs on the Ubuntu open-source operating system.

Bunting built the as-yet unnamed robot from spare parts as a final project for a UA class on cognitive robotics. A camera mounted on the front of the six-legged creature (each leg has three degrees of freedom) takes successive images, which are used to help Hex determine if it is moving forward, sideways, or backward or tilting.

By analyzing the visual feedback, the 14x17x8-inch robot adaptively "learns" how to most effectively achieve its forward-moving goal.

"One of the things I wanted to explore was the idea of reinforcement learning. What I wanted to do was not preprogram any of those walking algorithms, I wanted it to figure out how to walk straight forward on its own," Bunting said. "It has the ability to figure it out itself."

Bunting's professor Tony Lewis says the bot's learning algorithm can be applied to tasks other than walking. If a leg breaks or a motor gets damaged, for example, it can relearn how to walk. The robot even has foot contact sensors that can be used for terrain adaptation.

"I see that this device might be doing scientific work like autonomous navigation, mapping of different environments, moving over rough terrain and doing exploration, possibly planetary exploration," Lewis said. "I think Matt's robot has a lot of possibilities. It's really not so far-fetched that a robot like this could go to Mars." … Read more