Geometric Concrete Mold Base

Objective:
Create a Python script or macros that generates a 3D object based on a reference model. The model is a mold-like shape used for concrete casting. The result should preserve the same proportions and geometry as shown in the reference image.

Requirements:

Geometry:

The model consists of a main body with:

A flat square base with beveled or chamfered corners.

Several concentric cylindrical sections extending inward.

No internal hole or cavity — the object should be solid.

Reproduce the proportions and shape as accurately as possible based on the provided image (attached separately).

Implementation:


The mesh must be procedurally generated by the script.

All transformations and dimensions must be explicit in code (no imported models or manual editing).

The object must appear at the origin (0, 0, 0) upon running the script.

Constraints:

No modifiers should be used manually — everything should be handled in the script.