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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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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
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The Interface
This tutorial gives a brief explanation of the MAX interface items commonly used and introduces you to the important areas of the interface. Format: Text/Image
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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: 3 minutes ago
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All About Shadows
This tutorial considers the various options for creating shadows when rendering 3D models. Format: Text/Image
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Modifying Objects
This tutorial runs through all of the modify tools, demonstrating practical examples in each case. Format: Text/Image
Last visited: 6 minutes ago
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AutoCAD 2010: 3D Scale & 3D Align
This tutorial introduces the 3D Scale and 3D Align tools. Although 3D Scale is a bit of a damp squib, 3D Align is very powerful and can get you out of all sorts of scrapes if you know how to use it correctly. Running time: 3min 42sec Format: Video
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.
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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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30th December 2024 to 5th January 2025
This week's image is by Alex Moiceanu
Software used: AutoCAD 2012
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Last Week's Image
Last week's image is by Noahma
Software used: AutoCAD Architecture 2009
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Two Weeks Ago
This image is by lulumara
Software used: Solidworks 2009
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Three Weeks Ago
This image is by Dorian
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
Mid Between 2 Points (m2p)
Sometimes you might want to find a point midway between two other points. In the past, you might have drawn a line between these two points and then used "Snap to Midpoint" but this requires the drawing of a construction line and isn't very efficient.
Enter the m2p object snap. This will find the midpoint between any two picked points without the need for a construction line.
How it works: Say you want to draw a circle midway between two squares, start the circle command and then enter "m2p" when prompted to specify the center point. Now just follow the prompts.
Command: circle
Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: m2p
First point of mid: (pick first point)
Second point of mid: (pick second point)
Specify radius of circle or [Diameter] <20.000>: (pick to complete circle)
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.