Re: [ros-users] Robots Selection

Patrick,

I've been successful in building maps with an iRobot Create + Hokuyo
URG-04LX-UG01 laser -- the odometry isn't perfect, but generally gmapping is
able to correct. The limitation here is the short range of such laser.

If using a Kinect, the RGB-D entry to the ROS 3D contest appears to need no
odometry (although such odometry might assist in bootstrapping the search
for correspondence on a mobile platform). I've just finished upgrading my
install to unstable, and am actually planning to try out the RGB-D system on
a our Create/Kinect platform this afternoon, so I'll try and report back the
results.

-Mike Ferguson

On Fri, Jan 28, 2011 at 9:52 AM, Patrick Goebel <patrick@pirobot.org> wrote:

> Hi Nicolás,
>
> I don't have an iRobot Create, but I have heard from one other ROS user
> that the wheel encoders are not necessarily very reliable. Can other
> Create users comment on this? In particular, I was wondering if the
> encoders are good enough to do SLAM using the ROS Navigation stack in
> case Nicolás is planning on giving that a try.
>
> Patrick Goebel
> Behavioral Sciences
> Stanford University
>
> On 01/28/2011 02:36 AM, Nicolás Alvarez Picco wrote:
> > Hi,
> > First of all thanks for answering.
> > Garratt I saw the video and it is really good. I would like to do thing
> > like that! I mean, a moving robot with a laptop or a netbook on board,
> > and design a path planner!
> > Do you think there is good code in ROS repositories using the iRobot
> > Create or the Rovio, because I am not an expert in robotics.
> > I was checking in the official website of iRobot Create and the cheapest
> > Roomba is 349 euros, much more than what you said, which model are u
> using?
> > And what about the kinect, there is good stauff in ROS repositories?
> > Are u using a special type or most of then are the same?
> >
> > Thanks
> >
> > Nicolas
> >
> > > From: garrattgallagher@gmail.com
> > > To: ros-users@code.ros.org
> > > Date: Thu, 27 Jan 2011 20:24:30 -0500
> > > Subject: Re: [ros-users] Robots Selection
> > >
> > > $300 is pretty low, but if you have your own laptop, you can make it
> > > happen.
> > >
> > > Dan was right, the popular (and my favorite as well) choice is the
> > > iRobot Create. I'm working on a project to make a good mounting for
> the
> > > Kinect on the Create (or the Roomba) and put a computer on board:
> > > www.bilibot.com
> > > And so is Willow Garage! (It's just a good idea.)
> > >
> > > A couple notes: be careful about the $130 price tag: it only buys you
> > > the robot, and you have to supply non-rechargable batteries, which can
> > > get really annoying (and costly) after a while.
> > > the price with rechargable battery and charger is $219.
> > >
> > > Also, if you are a vision guy, and that $300 is a hard constraint, I
> > > might recommend the Rovio - it has a webcam and already has ROS
> drivers!
> > >
> > > cheers
> > > Garratt
> > >
> > > On Thu, 2011-01-27 at 11:14 -0600, Dan Lazewatsky wrote:
> > > > Hi Nicolas -
> > > > I recall a similar discussion on this list before, but I can't seem
> to
> > > > find it. The consensus seems to be (and I'm inclined to agree) that
> > > > one of the best low-cost options is the iRobot Create, which costs
> > > > about $130 USD. You can drop a netbook or laptop on top, and along
> > > > with a Kinect, you have a very capable robot.
> > > >
> > > >
> > > > -Dan
> > > >
> > > > 2011/1/27 Nicolás Alvarez Picco <nicolasapicco@hotmail.com>
> > > > Nicolas
> > > >
> > > >
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