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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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Animation
Design visualisation animation generally involves animation of cameras in walkthrough, panaround or flyover movies to give the client a much richer and more informative view of the design. This tutorial covers the basics. Format: Text/Image
Last visited: 2 minutes 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: 9 minutes ago
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Using Co-ordinates
All about the use of co-ordinates in AutoCAD. Format: Text/Image
Last visited: 11 minutes ago
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Perspectives, Slides and Scripts
AutoCAD can be used to create a simple "walk through" of any 3D model. This tutorial shows you how. Format: Text/Image
Last visited: 13 minutes ago
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Paper Space Exercise
AutoCAD's paper space mode is a bit like having a page in a scrapbook onto which you can paste different views of your AutoCAD drawing. This whole page can then be plotted. This exercise demonstrates how. Format: Text/Image
Last visited: 15 minutes 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: 21 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
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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31st August to 6th September 2026
This week's image is by CADken
Software used: SketchUp and AutoCAD 2010
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Last Week's Image
Last week's image is by Red333
Software used: AutoCAD 2009
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Two Weeks Ago
This image is by RODDY1
Software used: AutoCAD 2009
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Three Weeks Ago
This image is by papagyi
Software used: 3ds Max 9 and V-Ray
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
Command line in a window (F2)
The command line can be very useful, especially for beginners because AutoCAD often gives useful prompts which helps when learning how to use some of the more complicated commands. The command line is also used by AutoCAD to report information back to the user, but sometimes that information may run to several lines of text, and disappear from view. A good example of this is the Distance command (you can run this from the keyboard by typing DIST). The problem is that by default, the command line is only two lines high and so if you use the Distance command, you don't even see the distance reported to the command line.
One way round this problem is to increase the depth of the command line to show more lines but this takes up valuable drawing area. A better solution is to display the command window using the F2 key on the keyboard.
As you can see above, the command window also allows you to scroll back through the command line so that you can review your recent drawing history.
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.