Inertial of meshes file

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Hi. First time asking something so hope you understand. I'm trying to spawn a model of a robotic arm in gazebo and when I do it the last link of my robot moves. I'm pretty sure that is a problem with the inertia parameters. I'm using a mesh file and I wonder If I rotate the joint in order to all my links rotates in the z-axis that it altered the values of the inertial matrix that I get from solidworks? Thanks in advance. If I need to share more information just tell me.