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In lugnet.technic, Steve Hassenplug wrote:
> On Tue, December 6, 2005 10:29 am, Jordan Bradford wrote:
> > I saw this linked on Slashdot:
> >
> > <http://www.prweb.com/releases/2005/12/prweb316686.htm>
> >
> > Allow me to cut through the inventor's verbosity and translate the concept:
> >
> > The square wheels are mechanically linked and turn in unison, but they're offset
> > from each other. The weight at the top of the vehicle forces one of the squre
> > wheels to stay flat on the ground. As the weight rotates to a new square, that
> > square has to turn to become flat, which makes all the others turn.
> >
> > I think I'll try building one of these, if I can get the offset angle to work.
> > It's 1/4 of 90 degrees, according to the article.
> >
> > The way this vehicle is set up, it only moves in a straight line. How might one
> > steer it? Shifting the center of gravity? Disconnecting one of the wheels from
> > the others temporarily?
>
> I think one way to steer it is to split the robot in half, and twist in the middle.
> However, that will make it hard to keep the front and back wheels in sync.
>
> Steve
Right, Steve - keeping the wheels in sync may be the problem. You're onto
something with the split in the chassis, though, and I thought of a
three-wheeled version, where the front single wheel can pivot, like on a
tricycle.
I found this article on the subject too:
http://www.maa.org/mathland/mathtrek_04_05_04.html
Ed
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