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[DPRG] cylindrical robotic arm

Subject: [DPRG] cylindrical robotic arm
From: cattug cattug at gmail.com
Date: Sun Feb 13 12:09:18 CST 2005

Thanks Ron, 

but thats not what i need. i am trying to develop a nonlinear control
scheme and a robotic arm with cylindrical coordinates (one revolute
and two translational joints) is one of the applications. i use only
the mathematical model of the robot, so i just want to find simple
representation figures.


On Wed, 09 Feb 2005 03:48:06 -0800 (PST), DeltaGraph at aol.com
<DeltaGraph at aol.com> wrote:
> Tigrul,
> >I need cylindrical robot figures. Industrial robot pictures and
> >figures of mechanical model of the robot. where can i find these?
> Many robots use two-drive wheels and a third caster mounted in a
> configuration which lends itself to building a cylindrical robot
> (Differential Drive Robot).
> Within our club. Beerbot is the most notorious cylindrical robot (that I
> know of). 
> You can find pictures of it on our website. 
> One contest I remember where it is present is Robo-Rama 2003b
> Here is the link to the photo gallery for that contest:
> http://www.dprg.org/gallery/rr2003b/index.html
> The most sophisticated robot in the club that uses the same drive geometry
> is SR04
> http://www.geology.smu.edu/~dpa-www/robots/sr04/. It is not covered with a
> cylindrical shroud but does have a cylindrical geometry.
> Check out the site above for nBot which is a cylindrical robot that balances
> on 2 wheels.
> The Roomba vacuum cleaner is another robot with the same cylindrical
> geometry.
> I hope that is of some use and I am on target.
> Also, your subject line mentioned "arm" so I am not sure if I am answering
> your question.
> Just doing a web search for "cylindrical robots" or "round robots" yielded a
> number of hits for me.  Maybe the web knows more on this subject than many
> of us, but you might get some interesting replies from your post.
> Ron Grant

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