generative design on a table

[Anonymous]

Hello everyone!

New to the forum and a bit of a fusion newbie. I'm trying to make Fusion generate the "core" of the table. In a sort of sandwich fashion. 

Not sure if I'm doing it right though. I have the "core" as starting body, and I have the top and bottom parts of the sandwich as preserve geometry. To make sure the generated core goes outside the top and bottom I have an obstacle border around the sides. 

Any ideas? (I want the tabletop to be able to withstand about 200N (which is basically 200kg, right?) if this helps)

Thank you for any answers 🙂Table with legs and side obstacle geometryYellow core that I want generated

[MikeSmell_ADSK]

@Anonymous  - 

Thanks for reaching out. Based on what I can see from your setup, here is what the solver is going to attempt to do. Using your Starting Shape (yellow part), the solver will begin generating geometry in that region that will support and connect all of the green parts to support the load and manufacturing methods that you have defined. The generated geometry will avoid your Obstacles (red parts). Depending on the strength requirements, you may find that geometry will grow your preserve regions. This means that it is possible that you would see material added to your table top or to the bottom of your table preserve and then also connecting down the legs. If you see this behavior, you may want to consider adding another obstacle to your table top to ensure it stays flat. Also, be sure to take advantage of the Previewer button on the Generate panel of the Toolbar. This will give you an idea of what the solver will do before submitting the job. 

Thanks, 

Mike Smell - Product Manager, Fusion 360 Generative Design and Simulation 

[MRWakefield]

FYI 200N is nearer to 20Kgf (20.394Kgf to be more precise).

[Anonymous]

Thank you for your answer 🙂

Is it fair to assume if it can't project any preview that the generative prosess won't work?

I added an obstacle to the top as you said, that worked fine. I also wanted the table top to have a certain thinkness to it. So I added another obstable about 50mm below the top one. It then won't preview anything or "failes", is this because it then doesn't have the required amount of space to actually come up with anything?

Again, thank you for your informative answer 🙂