There is no legitimate or safe way to "crack" (formerly Fusion 360) because it is a cloud-based application that requires continuous server-side authentication . Most "full crack" files found online are likely to contain malware, as the software's core functionality relies on a subscription status stored on Autodesk's servers.

For immediate, temporary access to all professional features (including advanced simulation and generative design), you can download the standard free trial

Autodesk offers several license types for free or at a significantly reduced cost depending on your needs: Autodesk Fusion | Free software for students and educators