rolling robot

guys any one done a rolling robot ???plz help me

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bharath wrote:

The majority of robots done today have wheels and are therefore "rolling robots". Did you have something other than a wheeled robot in mind? Something like this perhaps? http://www.reconrobotics.com /
-- Randy M. Dumse www.newmicros.com Caution: Objects in mirror are more confused than they appear.
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RMDumse wrote:

Gotta think like a Texas rancher, Randy. Anybody here match that description???
Rollin rollin rollin Though the streams are swollen Keep them doggies rolling Rawbot! Rain and wind and weather Hell bent for leather ...
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Gordon McComb wrote:

Not this year.

We had to roll our doggies on out of here for lack of rain wind and weather. Auction was End of Trail for them. East Texas was bone dry this year. We got half a hay crop, where we normally get 3 or 4. So I'm not thinking much like a cattleman these days. Maybe next year. On the other hand, we've got a freezer full of truly organic beef the quality of which you cannot begin to imagine buying from the market...
Unlike a robot you just set aside, and rechare later, when you want to play with it, stock takes constant maintenance.
-- Randy M. Dumse www.newmicros.com Caution: Objects in mirror are more confused than they appear.
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guys i saw something like this in net http://robotics.usc.edu/~maja/teaching/cs584/papers/roball.pdf ..
thought it would b a very good challenge to do.so anyone have done it before...can u help me with ur ideas...
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wrote:

That rolling ball looks neat. Here's something similar (moving a weight suspended below the device's center of gravity to cause rolling), though of course not nearly as advanced. In the third pic down on the right is "Buddy Smith presents CoffeeCan:" http://botlanta.org/rally2006/open_photos.html
I remember this thing, he didn't quite have it ready, you can see the wires where he used a power supply instead of an internal battery. It only moved along a line, and I don't know how it would turn or even if he thought that far ahead. Sorry, that's all I got.
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Wow, that sounds really awesome. Whoever did that was a genius.
Oh wait, that was me...nevermind.
I realized after I made it that I did it very poorly....an RC car attached to the center shaft of the can and driving along it's rim would've worked much much better and been a whole lot simpler.
But, then again, the goal was to learn, not to make something useful, so I guess it wasn't all bad :)

Yeah, It turns out that I really should've used a better voltage regulator..... or done the circuit a little better.
One 9V wasn't quite enough to move it. But 2 9Vs overloaded the 7805. After the fact, someone figured out that I should've run one 9V to power the logic, and then used both of them to power the motors.....
Oh well.... I still have that sitting in the living room :)
ttyl,
--buddy
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Buddy Smith wrote:

Nifty little bot, but white socks and sandals?!?!?
For an overall look at similar concepts -- coaxial drive, not footwear -- there are some designs, working prototypes, and patents stretching back to the 30s (or so) on coaxial wheel vehicles: you basically sit inside and an outer wheel rotates around you. Turning was basically done by leaning. They were particularly popular as a develoipment platform during WWII as a means to traverse beaches. None ever saw commercial production.
-- Gordon
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Haha....that's why I wear them!
At least I wasn't wearing a kilt at the time.
And, for the record, it's currently too cold, even here in atlanta, to continue wearing socks+sandals....so I've returned to tennis shoes (aka sneakers) until warmer days....
ttyl,
--buddy
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