3D modeling is the upstream process that provides the digital blueprint for 3D printing, forming a core "digital-to-physical" workflow. It creates detailed 3D digital models (e.g., STL, OBJ files), which 3D printing then uses to build physical objects layer by layer.
- **Digital Foundation**: 3D modeling is the starting point—without a precise digital model, 3D printing cannot proceed. Designers use software (e.g., Blender, Tinkercad) to shape, adjust, and finalize the model’s structure, dimensions, and details. - **Printing Execution**: 3D printers read the model file, slice it into layers, and deposit materials (plastics, metals, etc.) according to the model’s specifications, turning digital data into tangible objects. - **Symbiotic Relationship**: The two are interdependent: 3D modeling defines "what to print," while 3D printing realizes "how to print." High-quality models directly impact the accuracy and quality of printed results.