In other situations, for instance when I just click on the top-level entry of the projekt and no calculation seems to be required (at least to me) then all 4 cores show a usage of 100% for several seconds and the PC freezes. Is there anything I can do in my project desing to speed up the calculation? I was already making sure to have as few relations in-between components as possible, so many components do not depend on each other. I am wondering why that main-core is not showing a usage of close to 100%? Is the program performing 'delays/no-operation-commands'? Fusion 360 has built-in capabilities to do 3D modeling, simulation and documentation. You explained that some the calcualtion cannot be done with more than on core, so that's ok. The top usage of one of the cores is maybe 60%. Still, its not the only option out there. However, when I check the CPU usage none of the 4 cores is really busy. The Best Fusion 360 Alternatives of 2022 by Lucas Carolo Updated Fusion 360 is great all-around software. GET STARTED FOR FREE See why over 1.2 million innovators switched to Fusion 360 Design, machine, 3D print, and collaborate for free with the 1 ranked product design and manufacturing software today. One of my projects is having quiet a few components, so that the calculation-all-command (Ctrl+B) of the project takes currently > 30 seconds. Fusion 360 From dream to done Turn your ideas into 3D models 4X faster and start designing with Fusion 360 for free today.

Thanks for your explanations! I have a related question about CPU usage.

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