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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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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: 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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Drawing Objects
Getting to grips with AutoCAD's basic drawing tools. This is an ideal start for the AutoCAD beginner. Format: Text/Image
Last visited: 2 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
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Creating an Image Rollover
This tutorial demonstrates the best way to create image rollovers in Microsoft FrontPage. It also shows some variations on the basic technique along with some examples of how it could be used. Format: Text/Image
Last visited: 3 minutes ago
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Map Modifying
Map modification takes place in one of two places: either on the Modify Panel with the use of one of two modifiers, or in the Material Editor as part of the material parameters. This tutorial guides you through the options. Format: Text/Image
Last visited: 3 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
“Best of” Basics: Irregular Viewport
From: AutoCAD Productivity Articles #145
Originally published: April 2016
When you need a viewport shape other than a rectangle, the first order of business is to be able to view the objects in Model Space at the desired scale. From there, you can create a polyline to essentially ‘crop’ the objects in Model space, then turn it into a viewport.
The best drawing for testing this is in the path…
C:\Program Files\Autodesk\AutoCAD 20xx\Sample\Database Connectivity
If you have AutoCAD 2014 or prior, the drawing name is db_samp.DWG
If you have AutoCAD 2015 or later, the drawing name is Floor Plan Sample.DWG
How to Create an Irregular Shaped Viewport
Right-click on a layout tab and make a new layout with a large viewport.
Double-click in the viewport, then set the desired scale from the scale list on the Status bar. You may want to start with 1/64″ = 1′-0″ so you can see all of it.
Return to Paper space and create any closed polyline, spline or circle to be the viewport.
Note: If you are creating a Polyline, you must use the Close option if it is to be converted into a viewport. If you did not use the Close option, use Pedit and select the polyline, then use the Close option.
In this illustration, I created a polyline around the perimeter of the floorplan. (Ideally, this would be on a dedicated layer on which you typically create your viewports).
On the Layout tab, click Clip.
When prompted to select the ‘viewport to clip’, select the rectangular viewport.
When prompted to select the ‘clipping object’, select the polyline (or whatever object you created in Step 3, above).
AutoCAD will convert the polyline into a viewport and erase the original rectangular viewport!
See all the articles published in April 2016
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 March to 6th April 2025
This week's image is by Lazarus
Software used: AutoCAD 2008
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Last Week's Image
Last week's image is by hazardman
Software used: AutoCAD and 3ds Max
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Software used: SolidWorks
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This image is by rgarjr
Software used: AutoCAD 2008
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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
Moving vertically in 3D

Moving objects vertically always used to be a bit of a chore with AutoCAD, usually involving some relative coordinate entry for the Z direction or maybe the .XY filter. Fortunately, AutoCAD 2007 introduced a new command that makes moving objects vertically a snap.
You'll find the 3D Move button on the Dashboard or from the pull-down menu.
As with the normal Move command, you're first prompted to select objects. Once a selection is made, the cursor changes to the move grip tool. Now, pick any point on the base plane to fix the move grip tool at that elevation. Next, hover your cursor over the blue axis handle (Z axis) until it changes to a gold colour and left-click. This has the effect of constraining movement in the z direction. All you need do now is enter the distance you want the object to be moved or use the mouse to pick a distance.
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.