How to create very smooth surfaces with porespy?

[Mah6iid]

I am using porespy to generate overlapping spheres to be able to subtract them from a box and then, mesh the sturcture in solidworks for further analysis. However, when I use porespy for this work, it creates surfaces which are not smooth and it causes generation of non-smooth surfaces that cause error in generating mesh or creating the readable file for processing softwares like Ansys. Could you please help me on how can I increase the smoothness of the surface with your software? Actually, I tried using "smooth=True" command, however this does not make any difference in the output results. Could you please guide me further?

Thanks.

Here is the code that I used to create the structure:

"import porespy as ps
import matplotlib.pyplot as plt
import numpy as np
from stl import mesh
from skimage import measure
import trimesh

ps.visualization.set_mpl_style()
shape = [100, 100, 100]
r = 15
smooth = True

im = ps.generators.random_spheres(shape=shape, r=r, smooth=smooth)

im_inverted = np.logical_not(im)

verts, faces, _, _ = measure.marching_cubes(im, level=0.5) # level=0.5 for binary interface, it gives all the vertices and faces

Create a trimesh object

mesh = trimesh.Trimesh(vertices=verts, faces=faces)

Export to STL

mesh.export("porous_sphere.stl")

plt.imshow(im[:, :, 50]) # Visualize a slice
plt.show()"

P.S: I tried different generators, like random_spheres, overlapping_spheres, etc.