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In lugnet.technic, Ed McGlynn wrote:
> 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
Slashdot had a link to an article about that vehicle, too, but it requires a
specially-shaped surface to work. The one with the rotating weight works on a
flat surface.
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Message is in Reply To:
 | | Re: Vehicle with square wheels
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| (...) 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 (...) (18 years ago, 6-Dec-05, to lugnet.technic, lugnet.robotics)
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