@manafishrov: Generative parts are made by an algorithm that simulates the design many times, adding material where it’s weak and removing it where it’s strong. This creates very light and extremely strong parts. Here’s how to do it: Start with a seed design containing preserve geometries and obstacle geometries. Preserve geometries are features your final part must keep, like screw holes or mounting points. In my drone frame example, every screw location was modeled as a preserve geometry. Obstacle geometries define where the final part must not intersect. For the frame, I added obstacles for motors, propellers, the screws themselves, and long cylindrical spaces under each screw hole to ensure room for inserting the screws. Some programs require a starting shape, but Fusion doesn’t. If needed, make a large block around everything and subtract all preserve and obstacle geometries so the starting shape only fills the allowed region while touching all preserves. Next, add loads and constraints. At least one preserve geometry must be constrained. Constrain whichever feature will be rigid in real life. If a part is pulled between two points, constrain one and load the other. If the part moves freely, like a drone frame, constrain a preserve geometry near the center of mass. Then apply forces. All preserve geometries need some load or the simulation may fail. A small extra load on each one ensures they stay connected. Choose the material closest to what you’ll actually use. Set your objective. Minimize mass creates the lightest part that barely handles the loads. Maximize stiffness creates the stiffest design for a chosen mass. For my frame, I used maximize stiffness with a 55 g target. Press solve, and you get an extremely strong, lightweight part that also looks super cool. #cad #fusion360 #engineering

Manafish

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Friday 14 November 2025 08:35:21 GMT