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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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Using Co-ordinates
All about the use of co-ordinates in AutoCAD. Format: Text/Image
Last visited: 4 minutes ago
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Transforming Objects
Transforming objects means changing the position, size or number of an object without altering the integrity of the geometry itself. MAX offers a host of transformation tools to do these tasks. This tutorial gets you started. Format: Text/Image
Last visited: 5 minutes ago
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Creating Seamless Tiles
This tutorial shows you how to create perfectly seamless image tiles in Photoshop. The image tiles are perfect for creating image based materials in AutoCAD, MAX or Bryce. Format: Text/Image
Last visited: 6 minutes ago
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Creating and Drawing Sections
This tutorial describes how to draw sections using Key TERRA-FIRMA. The tutorial assumes that you have previously completed the Ground Modelling tutorial or that you already have a good understanding of TERRA-FIRMA ground modelling. Format: Text/Image
Last visited: 6 minutes ago
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Navigation Techniques
Gaining the skill to navigate efficiently around a scene and around objects and parts of objects (sub-objects) efficiently and with ease is of paramount importance to good modelling. Most new users of MAX / VIZ need to get over this first hurdle before feeling comfortable in the 3D environment. Fear not, MAX / VIZ has a host of tools for the purpose. This tutorial descibes the most useful navigation techniques. Format: Text/Image
Last visited: 7 minutes ago
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Units and Scales
If you're asking yourself "what scale do I draw in?" or "what units should I use?", you need this tutorial. Format: Text/Image
Last visited: 8 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
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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
Original Dimension Value
From: AutoCAD Productivity Articles #143
Originally published: December 2015
Since the dimension text of an associative dimension is Mtext, double-click anywhere on an associative dimension and you can add additional information… or modify the value to what you want.

But what if you want to put the dimension back to the original value?
Insights:
If you reposition an extension line origin grip of a dimension and the value doesn't change, the original value was modified.
If you double-click a dimension and the edit box has a white background — not blue — the original value was modified.

Solution:
Double-click the dimension, then put the less-than and greater-than characters in the dimension box, like this… <>
The original value will be restored.
See all the articles published in December 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 November 2026
This week's image is by arjun_samar
Software used: 3ds Max with V-Ray and Photoshop
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Last Week's Image
Last week's image is by shift1313
Software used: SolidWorks 2010
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Two Weeks Ago
This image is by Oppie
Software used: AutoCAD 2011
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Three Weeks Ago
This image is by boofredlay
Software used: SketchUp and Twilight Render
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
Tab through commands
This tip works begining with AutoCAD 2006:
At the command line, type the first letter of the command you wish to start. Do not press the Enter key; instead, press the Tab key repeatedly and watch as AutoCAD runs through an alphabetical list of all commands, beginning with the letter you first typed. When the right command appears in the command line, press Enter to start it.
This isn't a very efficient way to invoke a command but it's a great way of finding commands you never knew existed; try it yourself and you will discover that AutoCAD has a lot of commands…
Also, you can press Shift+Tab to walk back through the list.
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.