For beginners, rotating a 3D model means opening software, selecting the model, using the rotation tool, adjusting via axes, and fixing normals if they flip.
- **Open & Select**: Launch Blender/Tinkercad and click the model to select it. - **Activate Rotation**: Use the tool (e.g., "R" in Blender, "Rotate" button in Tinkercad). - **Adjust Angles**: Drag color-coded axes (red=X, green=Y, blue=Z) or type a number (e.g., "90")—hold Shift for smooth moves. - **Fix Normals**: If surfaces invert (normals flipped), use "Recalculate Normals" (in Blender) to correct.
Practice with simple shapes (cubes), use "Undo" (Ctrl+Z), and try small rotations first to learn axes before working on detailed models.