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Design and Development
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New Model of Tiny Jumping Robot has a Tail
The robot uses its tail to orient itself while in the air.
By Evan Ackerman, IEEE Spectrum - Filed Aug 21, 2013

More Design and Development stories
We first met Jianguo Zhao's jumping robot at ICRA 2011. We were impressed because of how tiny it was, but also because it could change direction, self-right, and jump, all using just one single motor and a clever arrangement of gears. A new upgrade (inspired by research from UC Berkely) adds a tail to the mix, giving this little robot the ability to orient itself in midair. Oh, and it can also run, because why not.

Adding a tail also involved adding an extra motor to the robot, but there was no way that the designers could tolerate such inefficiency. So, the tail motor and gear can team up with a gear on the jumping motor to give the robot the ability to move horizontally along the ground. My guess is that the next iteration of this robot that we see will (somehow) have that motor enablingthree abilities instead of just two.

The total weight of the robot is still just 26 grams, and it's only 7.5 centimeters tall. It can jump over 80 centimeters up (with a 75 degree takeoff angle), and while "running," it can reach speeds of nearly 4 cm/s. In addition, the robot is equipped with on-board sensors, and of course it can be controlled wirelessly or made fully autonomous, and the designers speculate that it might be appropriate for applications like search and rescue, military surveillance, and environmental monitoring.

Officially, this research will be presented at IROS 2013 in Toyko this November, but a pre-print edition of the full paper is already available online here.


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