Beginners can cut a building’s 3D model using entry-level software tools like Blender’s "Bisect" or SketchUp’s "Slice" to define a cut plane and split the model.
These tools let you select the model, draw a clear cut line (e.g., for floor divisions or vertical sections), and confirm the split—start with simple rectangular buildings to avoid getting stuck on complex details.
Save a copy of the original model before cutting, so you can revert if needed; practice small, basic cuts first to get comfortable with how the tool works.
By following these steps—using entry-level tools, starting simple, and saving originals—beginners can easily cut their 3D building models.