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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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3D Tree Exercise
The object behind this exercise is twofold. Firstly it is to give you practice with some of the 3D techniques which you have discovered in the tutorials or to introduce you to them if you haven't seen them before. Secondly it is to demonstrate a reasonably simple method for constructing a convincing 3D tree. Format: Text/Image
Last visited: less than one minute ago
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Dimensioning
This tutorial describes the options and commands available for dimensioning drawings and how to use them. The correct use of AutoCADs dimension tools is the key to producing clear and concise measured drawings. Format: Text/Image
Last visited: 1 minute ago
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Using Images
A simple exercise to help you understand how images work in AutoCAD. Format: Text/Image
Last visited: 1 minute ago
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Render Scene Dialog
The Render Scene dialog has many settings, only a number of which are commonly used. This tutorial uses the default Scanline Renderer as an introduction to the dialog and settings. Format: Text/Image
Last visited: 1 minute ago
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ISO Paper Sizes
There has alwas been some confusion over the size of standard ISO drawing sheets with AutoCAD.The stated sizes in the plot dialogue box are not the true ISO sizes. This tutorial explains why and how to plot to scale from Model Space. Format: Text/Image
Last visited: 2 minutes ago
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AutoLISP Quick Start
This tutorial is designed to help AutoCAD users get to grips with AutoLISP quickly. It demonstartes how to create AutoLISP routines from a standing start. Format: Text/Image
Last visited: 4 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.
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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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2nd – 8th March 2026
This week's image is by Lazer
Software used: Inventor and Solid Edge
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Last Week's Image
Last week's image is by Miklos Fuccaro
Software used: AutoCAD 2006
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Two Weeks Ago
This image is by craigp
Software used: AutoCAD 2007 and V-Ray
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Three Weeks Ago
This image is by StykFacE
Software used: AutoCAD 2008
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
Lock your viewports!
The zoom factor of your viewports is crucial because it affects the plotted scale of your drawing. So, once you have set your viewport scale, it's a good idea to lock your viewport so that you don't inadvertently change it. To lock a viewport, select it in paper space by picking on its boundary and then right-click anywhere within the viewport. Select "Properties" from the right-click menu and the Properties panel will appear. In the "Misc" section, click on "Display locked" to activate the pull-down and set the value to "Yes".
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.