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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
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
🔥🔥🔥
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It doesn't get stronger, it just doesn't get alot weaker, while reducing alot of weight
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🔥🔥
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We getting the space age alien designs we saw in movies as kids, boys
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This is neat bro 🔥
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that's an awesome bit of tech. can it account for anisotropic materials like FDM plastic? that's something i always worry about with these. (i.e. part is much weaker along axis of layers)
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👏👏👏👏👏👏
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I was waiting for that explanation haha. Keep up the good work
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can I do it in inventor?
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This is cool for fusion but does it work with onshape
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Is this possible in solid works also or just fusion
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Is it possible to get the file from the "Manafly". I really like the design of the frame. Im flying FPV since 2022...
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Fusion 360 is capable of optimizing structure/weight like this?
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All this made from Fusion?
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if i wanted to make an AI drone or any AI robot trained via isaac sim, could i optimize the 3d model like this before importing it, is this a good idea or at least feasible?
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