How to make this kind of geometry

I can’t see anything in the link. you can upload the images directly in the topic

Hi -
That looks like it’s just a bunch of slices placed on top of each other. Which part are you having problems with?

I just wondered if there is an option not to make every single surface, but to make one and then slice it and modify it

yes. make the shape you want. then use _Contour and using the resulting curves you can extrude them to hace each slice

Thank you, I will try that way