Lidar position not adjusted

[Vitus012]

Hi,
I am trying to use the TurtleBot3 with the OpenManipulator-X in ROS2.
I wanted to see the difference in position of the lidar scanner, when mounting the OpenManipulator, since it has to be moved forward.
But the urdf-files from the original TurtleBot3 package use the same offset.

Also, I am not sure how to align the lidar scanner properly, when moving it. Normally the disc is at the center, but no new reference is given.