
A Center of Gravity (COG)-
Shifting Biped (Chapter 15)
In order to keep its balance, a
biped robot needs to move its
center of gravity over one foot
before lifting the other. This
two-legged walker has its RCX
mounted on a sled, which
slides over the supporting leg
with each step.
Skier (Chapter 16)
This simple robot is able to
snowplow on a snowy slope. The
left ski pole has a wheel attached
to a rotation sensor, through which
the robot can evaluate its speed. A
motor on the back operates the
legs, making them more or less
convergent and thus keeping
its speed in the desired range.
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