Hi Brian, Thank you for your help. I haven't been able to find any reported errors in ROSARIA's odometry. So I guess I am going to try using p2os in order to verify that my problem is not a hardware one. Regards Laura -- View this message in context: http://ros-users.122217.n3.nabble.com/Overlapping-of-map-using-slam-gmapping-tp1533137p1597485.html Sent from the ROS-Users mailing list archive at Nabble.com.