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 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 > > > > Nicolas > > > > > > > > > > > > _______________________________________________ > > > > ros-users mailing list > > > > ros-users@code.ros.org > > > > https://code.ros.org/mailman/listinfo/ros-users > > > > > > > > > _______________________________________________ > > > ros-users mailing list > > > ros-users@code.ros.org > > > https://code.ros.org/mailman/listinfo/ros-users > > > > > > > > _______________________________________________ > > ros-users mailing list > > ros-users@code.ros.org > > https://code.ros.org/mailman/listinfo/ros-users > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users >