Creating an enclosed curve using equations and regular sketches

Hello,

I am trying to design a wall for concrete 3D printing.

One of the constraints that I have with the machine is the .stl file needs to be a enclosed model.

I have been working on designing a wall which has a wavy portion on the front surface. I used math expression to create points and then interpolate those to create a curve and then make multiple curves to create the wavy portion of the wall.

Here is the image of the wall surface that I have made and I like.

I am trying to figure out how to make it a closed surface body.

Here is what I am trying to do

The back portion of the wall just needs to be straight.

I am attaching the grasshopper file here for your reference.

Thanks

wavy_wall_V1.gh (17.9 KB)

One way to get a closed polysurface would be to project the surface to an offset XZ plane and loft the boundaries.

wavy_wall_project_loft.gh (15.3 KB)

Thanks a lot for this !!

I am trying to have the top and bottom surfaces open

I am trying to figure out which items to remove from the list.

Also wanted to know if there was a command to fillet the sharp edges of the side walls

Fillet Edge in Grasshopper and then eliminate the faces where the dot product of the normal and Z vector is 1 or -1…