Swiss Microrobot Playing "Pac Man" I

A gold/nickel microrobot of 300x300x70 micrometer (10^-6 m) dashing through a maze of photoresist walls.
The robot is controlled by visual servoing, i.e. the user clicks a spot and the computer steers it there.

The robot and required system was built by a team of researches at ETH Zurich (Swiss Federal Institute of Technology) and won the RoboCup in the Nanogram League 2007.

For more information see other videos and comments, our webpage (http://www.iris.ethz.ch/msrl/research/special/nanogram/) or Google it.

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• nanogram
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[OghamTheBold]

300 micrometers is hard to visualize - you should put an ant's pocket watch in the shot - so we can see the scale.

As I suspected - the batteries are the size of a small horse.

[03dom]

yep. well, this shot has been taken during the competition with not much fiddling. but you do have the size bar on the lower left and also, you could follow the link in the video-description which will take you to better size-comparison images.

[yc83sakura12]

how come they didn't use "um" to signify micrometers... i believe the scale is in milimeters then...

[03dom]

the scale bar is 3mm (as indicated), the robot is 300x300 micrometer - a tenth of the scalebar, which is easily visible in this video.

[jabaste]

Where is the robot getting its power from?

[03dom]

external oscillating magnetic fields generated by coil pairs.

[lovelplants]

hooo.. cool..

[johnnystorm28]

This is a robot made my ETH students

[3kbuz]

yeah ETH rox ;D