Hello !
I am trying to use Nav2 with Isaac Sim as the Simulation software. The navigation stack launch properly but the robot is not reaching the goal, even worse it is not really following the path.
[The visualization software used here is Foxglove, exactly the same as Rviz]
All the pictures show the final state of the robot. And as showed, the robot’s planned path (in purple) is correct but the real path (red dots) is not. It almost looks like the robot is trying really hard to reach the goal but with a poor accuracy.
On the other hand the Isaac Sim navigation example works really well so my guess would be that the Nav2 side is working well.
During my experiments, I have tried with both 4 and 2 wheels robots (I would like to use 4 wheels robots but as it did not work I tried with two wheels) but none of them work as intended.
My guess would be that the friction between the wheels and the ground is incorrect or that I used wrong parameters during the robot assembly.
Physic material for the wheels:
The 2 wheels robot
The 4 wheels robot
Please also find enclosed the usd file for both robots, the environment and the used sensor:
Loe_revor.usd (71.4 KB)
2d_lidar.usd (15.9 KB)
onion_revor.usd (162.4 KB)
indoor.usd (212.3 KB)
loe_2d_lidar.usd (5.5 KB)
The params files used for the SLAM-toolbox and nav2:
slam
mapper_params_online_async.yaml (2.3 KB)
nav2
nav2_params.yaml (7.7 KB)
CLI:
slam
ros2 launch slam_toolbox online_async_launch.py params_file:=./src/loe_revor/config/slam_toolbox/mapper_params_online_async.yaml use_sim_time:=false
nav2
ros2 launch nav2_bringup navigation_launch.py params_file:=./src/loe_revor/config/nav2/nav2_params.yaml use_sim_time:=false
SLAM: slam-toolbox (with minor changes)
ROS2: foxy and humble (I have tried both)
Isac-sim: 2022.2.1 and 2022.2.0 (I have tried both)
Navigation: nav2 (with minor changes on the parameter file)
Expected behavior:
2023-04-18 11-22-49.mkv (11.5 MB)