The Rotundus Rolling RobotPosted 6 Jan 2005 at 00:53 UTC by steve 
In another backlogged story from the holidays, Nils Hulth of Rotundus AB in Sweden writes, "I
do not know if you are interested in our novel robot design - a
ball-shaped robot. Currently we are looking for uses for this robot
apart from surveillance and inspection. Maybe one of your readers might
have an idea?" The Rotundus robot looks like a large, black bowling
ball. By moving
an internal mass, the robot can move at up 20mph and is able to
handle rough terrain.
It's also airtight, so it can roll through snow, mud, and water with no
problem. Photos and
video of the robot in action can be found on the Rotundus website
along with a few more details in a marketing
flyer (PDF format). As for other applications, we reported on a proposed spherical miltary
robot back in 2001. It called for a more elaborate system of moving
masses and had extendable tripod legs and weapon arrays.
We did a kit called a "Miniball" waaay back in 1998 that was
solar-powered but without the full navigational ability (used ricochet
effect to change direction). Not only that, I saw a wire-frame
"buckyball" using dual motors to give
a fully steerable ball robot back in 1993. Even got a pic of it, if
anybody's interested.
NASA also had something on their website not long ago about an
inflatable robot of similar design for Mars (& similar) exploration. It
wasn't too clear on the details, but it shows the concept is alive and
kicking.
The spherical concept is lots of fun to play with, but *any* depression
on the surface acts as a gravity point to attact it. Not to poo-poo this
robot, but I'll be *very* impressed if it can do something like write
its name in the snow on the side of a gentle slope. I'll continue
looking at the videos now (and hopefully be stunned into silence!).
Regards,
Dave
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