Podstawy modelowania 3D w AutoCAD

Introduction

This tutorial will guide you through the basics of 3D modeling in AutoCAD. Whether you’re a beginner or looking to refresh your skills, you'll learn how to utilize basic shapes, modify 3D elements, and create a 3D model from a 2D drawing.

Step 1: Accessing Basic 3D Shapes

• Open AutoCAD and create a new drawing.
• Switch to the 3D modeling workspace by selecting it from the workspace switching options.
• Use the following commands to access basic shapes:
  • Box: Type BOX in the command line and press Enter. Click to place the box in your workspace.
  • Sphere: Type SPHERE in the command line and press Enter. Click to define the center and radius of the sphere.
  • Cylinder: Type CYLINDER in the command line and press Enter. Specify the base center and height.

Practical Tips

• Familiarize yourself with the command line for quicker access to commands.
• Use the ViewCube to rotate your view and see the shapes from different angles.

Step 2: Modifying 3D Elements

• Select a 3D shape that you want to modify.
• Use the following modification commands:
  • Move: Type MOVE in the command line, select the object, and specify the base point and second point to move it.
  • Scale: Type SCALE in the command line, select the object, and define a base point and scale factor.
  • Rotate: Type ROTATE in the command line, select the object, and specify the base point and rotation angle.

Common Pitfalls

• Ensure that you are in a 3D view when modifying objects, as some modifications may not behave as expected in a 2D view.
• Always check the properties panel to confirm dimensions after modifications.

Step 3: Creating a 3D Model from a 2D Drawing

• Import your 2D drawing by using the IMPORT command or by opening the drawing directly.
• Use the EXTRUDE command to convert 2D shapes into 3D:
  • Select the 2D shape you want to extrude.
  • Type EXTRUDE in the command line, press Enter, and then specify the height of extrusion.
• Use the SWEEP command for more complex shapes:
  • Select the 2D path and then the shape to sweep along the path.

Practical Advice

• Make sure your 2D drawing is properly scaled and closed before starting the extrusion.
• Experiment with different heights and paths to see how they affect the final 3D model.

Conclusion

In this tutorial, you learned how to access basic 3D shapes, modify them, and create a 3D model from a 2D drawing in AutoCAD. These foundational skills will help you progress in 3D modeling. Next, consider exploring more advanced techniques and features in AutoCAD to enhance your modeling capabilities. For further learning, check out extended courses or resources on 3D modeling.