I want to make a three-dimensional model like the one in the attached photo.

[kazuki_y2002]

I would like to create a three-dimensional object like the one in the attached photo. I have no idea how to create it. I would appreciate it if you could teach me how to do it. Thank you in advance.

[TrippyLighting]

I would approach this with T-Spline (Form) modeling.

I should be able to create a screencast how I would model this later today.

[kazuki_y2002]

Thank you! That's really helpful.

[davebYYPCU · Accepted solution]

Don't know enough to get this rounded with thinner channels.

Edit or start over?

[kazuki_y2002 · Accepted solution]

Sorry it took so long to reply.
Seriously, thank you! It really helped me a lot. I'll try to make some additional edits myself since you've done so much for me.

Thank you very much.

[TrippyLighting · Accepted solution]

Nice work @davebYYPCU !

I used your model and improved the topology. That allows me to use the solid shell tool to create consistent wall thickness.

Naturally, shelling at a thinner wall thickness is easy. 

I modified the model in Blender, but this can be done as well in Fusion. It's just so much faster for me in Blender.