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AutoCAD 2015 and AutoCAD LT 2015 Bible

The most comprehensive AutoCAD book around!

Tutorial: Create a custom command for AutoCAD using AutoLISP

AutoLISP offers powerful programming capabilities to AutoCAD, but you don’t need to be a programmer to use it. You can fairly easily create a simple custom command that can make your work go more quickly. In this tutorial, you’ll create a custom command that draws a red circle in any location and with any radius. […]

Select similar objects and apply an editing command to them

Suppose that you want to quickly change the layer of all objects on your WALL layer. Or, you want to change the linetype of all blocks named “dormer” that use the Hidden linetype. Here’s a quick way to select the objects you need.

The SELECTSIMILAR command (starting in AutoCAD 2011) allows you to select objects […]

Insert a block in AutoCAD

In a previous post, I covered how to create a block in AutoCAD. Here I explain how to insert a block.

Insert a block from your current drawing

When you have the block definition in your drawing (perhaps you just created it), follow these steps to insert it:

Go to Home tab> Block panel>  Insert […]

Use layers from existing drawings so you don’t have to recreate them

It’s always wiser to reuse work you’ve done than to recreate it from scratch. You spend spend time creating layers and you shouldn’t have to do it again.

Use the DesignCenter to access layers

An easy way to get layers from another drawing is to use the DesignCenter. Follow these steps:

Press Ctrl+2 to open […]

Dimensioning basics, Part IV: Create accurate baseline and continued dimensions

Baseline and continued dimensions are linear dimensions that are based on an existing linear dimension:

Baseline: The second and subsequent dimensions all start at the same point as the existing dimension but end at a different point Continued: The second dimension starts at the end point of the existing dimension Create a baseline dimension

First, […]

Dimensioning basics, Part III: Create accurate dimensions for angles

Measuring angles can be challenging. Sometimes, two lines that create an angle don’t even intersect or intersect, but not at their endpoints. For this reason, specifying an accurate vertex for the angle is important.

To dimension an angle, start the DIMANGULAR command. You can get there in two ways:

Home tab> Annotation panel> Dimension drop-down […]

Move an object the same displacement as previously by pressing Enter 3 times

When you use the displacement method of moving an object, AutoCAD remembers that displacement for the next move.

What is the displacement method? At the Specify base point or [Displacement] <Displacement>: prompt, you specify the X, Y coordinates. For example, you might type 0,4 to move the selected object up 4 units.

Want to move […]

Dimensioning basics, Part II: Create accurate dimensions for circles and arcs

Arc and circle dimensions are not as common as linear dimensions (See Part I), but they are still often used. Here are the basics for getting accurate results.

Dimension a radius

To dimension the radius of a circle or an arc, follow these steps:

Go to Home tab> Annotation panel> Dimension drop-down menu> Radius. An […]

Dimensioning basics, Part I: Create an accurate linear dimension

Almost all drawings except schematics have dimensions. Obviously, the purpose of dimensions is to show accurate measurements. So what do you do to create accurate dimensions?

Create a dimension style

You should always use a customized dimension style for your dimensions. I have a tutorial, “Create an architectural dimension style,” which you’ll find useful even […]

AutoCAD 2013 new features

AutoCAD 2013 was recently released and as usual, I’m providing a summary of the major new features so you can decide if you want to upgrade.

New file format

AutoCAD is updated every year, but only every 3 years or so do they change the file format.  A new file format means that people with earlier […]