Blog Published: 01/09/2020

Blogger - Enrique Barriuso

An introduction to AutoCAD 3D Tools

AutoCAD is widely known and utilised as a 2D drafting tool.

However, its use for 3D modelling is not as prevalent. This post introduces AutoCAD users to some of the most common 3D tools in AutoCAD by creating the simple shape shown below.
AutoCAD-training.png
Before we start modelling, we need to change the workspace to “3D modeling” from the status bar at the bottom of the application. The ribbon will update to show 3D tools.
AutoCAD-training-1.png AutoCAD-training-2.png
You can start by navigating to an isometric view by clicking on a corner of the view cube on the top right of model space. If you do not see the view cube, you can make it visible from the ‘View’ tab of the ribbon. Launch the 3DPOLY command to draw a closed 3D polyline in the front view (XZ plane). Starting on the origin and with ortho mode on (F8), start drawing as you would in a 2D view, keeping in mind that if you specify coordinates, you will need to provide them in all three axes.
AutoCAD-training-3.png
AutoCAD-training-4.png
Select the EXTRUDE command from the ‘Home’ tab of the AutoCAD ribbon, pick the 3D polyline from the previous step and then type 90 as the height of extrusion to create a 3D solid. You can control the visual style from the top left corner of model space.
AutoCAD-training-5.png
Draw a triangle using a closed 3D polyline as shown below and extrude it to the back of the shape. You may find the ‘Extension’ object snap useful to find the vertices of the triangle.
AutoCAD-training-6.png
At this point, we have two independent solids that intersect. Pick the UNION command and then select them both to combine them into a single object.
AutoCAD-training-7.png
AutoCAD-training-8.png
To finish the shape, draw a rectangle on the top face and extrude it to the base. Using the SUBTRACT tool, select the solid to subtract from first, press <Enter>, and then select the solid to subtract.
AutoCAD-training-9.png
AutoCAD-training-10.png
I hope you found this quick introduction to the 3D tools in AutoCAD useful. If you would like to learn more about this topic, you may want to consider our AutoCAD 3D Drawing and Modelling training course.

About the author

  • Enrique Barriuso

Enrique Barriuso

Application Specialist

A qualified CEng MSpICE Civil Engineer with over 7 years post graduate experience, Enrique graduated with a Masters in Civil Engineering, which covered a wide variety of subjects in the fields of transport, structural analysis, geotechnical design, coastal, water and environmental engineering. Enrique joined Excitech in 2015 and is an Autodesk Certified Professional in AutoCAD Civil 3D, subsequently helped many clients resolve their Civil 3D problems. He provides training in Civil 3D, AutoCAD and SketchUp.

Other Insight Authors
Add events to your calendar

Add this Internet calendar to outlook / iCal and subscribe to updates

Blog email subscription

To receive an email when a new blog is published, please enter your details below.

Live chat