Hi Daiber, that's going to be a pretty difficult style of model to create in a CAD program like MoI which is overall more focused on generating stuff from curves.

Polygon modeling tends to be better for more organic type shapes that have a melted like structure to them - those are programs like Cinema4D, Modo, Silo, etc... - they use a different style of 3D model construction than what MoI is focused on.

It probably would not work very well to try and build it in MoI - it would be possible to build a sort of curvy individual cell by creating several outlines and moving them in Z from each other and then using Construct > Loft, but it will be difficult for those cells to then be blended with each other where they connect up.

Polygon modeling programs use a technique called "Subdivision smoothing" which basically melts and smooths the initial cage all over, it tends to work better for the type of thing that you're asking about here and it is very likely that the original model that you're trying to duplicate was done using polygon modeling and not with a CAD program.

- Michael