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CADTutor provides the best free tutorials and articles for AutoCAD, 3ds Max and associated applications along with a friendly community forum. If you need to learn AutoCAD, or you want to be more productive, you're in the right place. See our tip of the day to start learning right now!
Free Tutorials and More…
The Tutorials section provides over 100 original tutorials for AutoCAD, 3ds Max and other design applications. Michael’s Corner is an archive of productivity articles that brings you the best AutoCAD tips and tricks. Our Forum is a lively community where AutoCAD users can ask questions and get answers. The Downloads area provides free AutoCAD blocks, free AutoLISP routines and free images.
Tutorials of the Moment
Recently viewed tutorials
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Sky Backgrounds
Putting a scene into an "environment" is important, not least to generate a feeling of "outdoors", a "sense of place" or mood. This tutorial takes you through the process of applying a sky background. Format: Text/Image
Last visited: less than one minute ago
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Scaling Images
How to scale images in AutoCAD. Format: Text/Image
Last visited: 2 minutes ago
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Basic 3D and Surface Modelling
Although AutoCAD has a number of commands for creating special 3D objects, a lot can be achieved by changing the properties of basic 2D objects like polylines. This tutorial provides a basic introduction to creating and viewing 3D objects. Format: Text/Image
Last visited: 8 minutes ago
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Volumetrics
This tutorial describes how to use Key TERRA-FIRMA to calculate volumes from ground models (.KGM files) and how to calculate cut and fill volumes between ground models. Format: Text/Image
Last visited: 9 minutes ago
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AutoCAD 2010: Starting a Command
This video tutorial demonstrates some of the methods for starting a command in AutoCAD. Running time: 2min 42sec Format: Video
Last visited: 9 minutes ago
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Masterplan Exercise
This exercise can be used to practice your basic drafting skills. Format: Text/Image
Last visited: 9 minutes ago
CADTutor Tutorials
Our tutorials are comprehensive but straightforward introductions to AutoCAD and related software. They are designed to help beginners get to grips with design workflows as quickly as possible. There are over 100 to choose from, some text/image based and others in video format. Whatever stage you are at in your learning, you should find a tutorial to help.
Forum Latest
Currently Active Topics
Penn Foster Structural Project
by LJade
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5 CAD Commands That Can Save You More Time Than You Think
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Do you really need a separate DWG for every revision?
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Penn Foster Structural Project
by cauldrnofbats
1 reply
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Why does SLICE sometimes create an unexpected result on a 3D solid?
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multiple file selection dialog box using lisp & powershell
by Paul Li
30 replies
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This Week's Hot Topics
Issues with MText in different colours
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Penn Foster Structural Project
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CADTutor Forums
Our forum is a vibrant community of experts and beginners. The main focus is helping beginners get to grips with AutoCAD and to help more advanced users become more productive. The AutoLISP forum is one of the busiest out there, providing expert advice for busy professionals.
AutoCAD Productivity
User Increment Angles for Polar (new in 2015)
From: AutoCAD Productivity Articles #138
Originally published: February 2015
The Polar tracking feature [F10] comes with several preset increments. But what if you want your own increment, like, 12? This is now available for the first time in AutoCAD 2015 where you can specify an increment value, and AutoCAD will snap to all instances of that increment!
How to Add Additional Polar Angles
Click the drop-down arrow beside Polar Tracking, then click Tracking Settings.
Check the box for Additional Angles, then click New and enter a new angle. Click OK to close the Drafting Settings dialog box.
Click the dropdown arrow beside Polar Tracking, then click your new angle increments.

See all the articles published in February 2015
Michael's Corner
Between 2003 and 2016, Michael Beall (and one or two guests) wrote almost 600 articles for CADTutor. The focus of these articles is AutoCAD productivity, and although some of them are now more than a few years old, most remain relevant to current versions of AutoCAD. The article above is just one example. Check out Michael's Corner for a full listing.
Image of the Week
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21st – 27th September 2026
This week's image is by Dorian
Software used: AutoCAD 2008
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Last Week's Image
Last week's image is by helraiser81
Software used: 3ds Max and V-Ray
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Two Weeks Ago
This image is by papagyi
Software used: 3ds Max and V-Ray
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Three Weeks Ago
This image is by CADken
Software used: SketchUp and AutoCAD 2010
Gallery of Work
Over the years, our forum members have contributed hundreds of images, showcasing their amazing work. The images above are just a small selection that demonstrate the wide range of project types our community is involved with. Take a look at our gallery to see all the images published in the last 12 months.
Tip of the Day
AutoCAD 2007 - Where's my old XREF Manager?
A lot of people using AutoCAD 2007 and above don't like the new XREF Manager, so here's a simple way to get the old one back.
AutoCAD 2007 introduced a new way to manage XREFs and to bring up the "old" XREF Manager, you have to type CLASSICXREF at the command line. Well, if you want things back the way they were and use the classic XREF Manager as the default from the keyboard and from the menu, a few adjustments will get you there…
First, go to . This command opens the ACAD.PGP file in Notepad. This is where all the keyboard shortcuts are defined.
Next, scroll down until you see XR (or use ), change the value from *XREF to *CLASSICXREF and save (). Close Notepad and return to AutoCAD. Enter the command REINIT, check the "PGP File" checkbox and click "OK". That fixes the keyboard so that next time you type XR, you'll see the old manager and not the new one.
To change your Menu, type CUI at the command line. In the "Customizations in All CUI Files" pane of the "Custom User Interface" dialogue, go to and click on it once to highlight it.
Now, in the "Properties" pane, change the "Macro" setting from ^C^C_externalreferences to ^C^C_classicxref, click "OK" to save the changes and you're done.
Missed a Tip?
Did you miss yesterday's tip? Maybe you forgot to drop by or maybe you don't visit over the weekend. If so, you can now see all the tips published during the past week. Also, if you have a tip you'd like to share with us, you can post it on our forum and if we like it, we'll publish it here.