Learn AutoCAD with our Free Tutorials
Welcome to CADTutor
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
-
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: 2 minutes ago
-
Entering Survey Data using AutoCAD
These techniques apply to basic CAD programs such as AutoCAD, IntelliCAD, etc. If you have a civil/survey program or add-on, such as Land Desktop, SurvCADD, Eagle Point, etc., then there are built-in tools for entering lines and curves. Format: Text/Image
Last visited: 3 minutes ago
-
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
-
User Co-ordinate Systems
This tutorial describes what UCSs are, why we need them and how to use them. The correct use of UCSs with AutoCAD is the key to producing good 3D models and they can also help with 2D work. Format: Text/Image
Last visited: 13 minutes ago
-
AutoCAD 2010: The ViewCube
This tutorial introduces the ViewCube and describes how it can be used for effectively navigating your 3D drawings. Running time: 6min 13sec Format: Video
Last visited: 18 minutes ago
-
Loft Mapping
This tutorial follows on from the simple Loft tutorial in Options for Creating Objects and demonstrates how to map a material along a lofted object. Format: Text/Image
Last visited: 20 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
Why does a 3D solid become difficult to edit after using UNION?
by indiancad
2 replies
Last post: 9 hours ago
Why does FILLETEDGE fail on some 3D solid edges?
by indiancad
2 replies
Last post: 9 hours ago
How do you handle very small details in a 3D model?
by indiancad
2 replies
Last post: 9 hours ago
Why does LOFT sometimes twist or fail unexpectedly?
by indiancad
2 replies
Last post: 9 hours ago
A 3D model can look perfect on screen and still contain small errors that cause problems during manufacturing.
by indiancad
0 replies
Last post: 10 hours ago
Select Between Bracket in Notepad+
by ymg3
7 replies
Last post: 24 hours ago
This Week's Hot Topics
Lisp Code for transforming list number to numbered block?
by dber
12 replies
Viewed: 524 times
AI recreating a floor-plan screenshot in AutoCAD - feedback welcome
by Andrea Rocco Matta
8 replies
Viewed: 299 times
Select Between Bracket in Notepad+
by ymg3
7 replies
Viewed: 519 times
ucs and drawing problem
by LIU
5 replies
Viewed: 132 times
Why does FILLETEDGE fail on some 3D solid edges?
by indiancad
2 replies
Viewed: 152 times
How do you handle very small details in a 3D model?
by indiancad
2 replies
Viewed: 107 times
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
-
28th September to 4th October 2026
This week's image is by herdy1212
Software used: 3ds Max
-
Last Week's Image
Last week's image is by Dorian
Software used: AutoCAD 2008
-
Two Weeks Ago
This image is by helraiser81
Software used: 3ds Max and V-Ray
-
Three Weeks Ago
This image is by papagyi
Software used: 3ds Max 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
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.