Hi, I need some help, I have a system with 3 cylinders (I got the center of mass for the system). Now I need to calculate the moment of inertia for the system. I have tried to find some examples or general information, but they all show when the axis either is centered within the object or on the surface. This problem has a distance from the system and is not "touching" any surfaces. I figured out distance from the center of mass too the revolving axis. But I cant get my head around how I can solve this with the "displaced" axis so to speak. Greatfull for every answer, thanks!