Navigate to an AutoCAD file with a 2-D model that you want to convert to 3-D and double-click on it. AutoCAD will load the file for you to convert.

Before you go to the hardware store — or book a contractor — you can use software like free floor-plan apps and augmented-reality tools to sketch out ideas for your remodeling projects.

Now you can make a 3D model of anything you can photograph, with free software from Autodesk and inexpensive online 3D printing services.

Taking a class in AutoCAD is a fantastic way to kickstart your career or ramp up your existing skills. Computer-aided design (CAD) allows you to digitally create 2D drawings and 3D models of ...