Where Do AutoCAD CTB Files Go?

Where Do AutoCAD CTB Files Go?

When working with AutoCAD, you may come across the term “CTB files” quite often. But where exactly do these files go, and what purpose do they serve?

In this article, we will explore the location and significance of CTB files in AutoCAD.

Understanding CTB Files

CTB, short for Color-Based Plot Style Table, is a file format used in AutoCAD to define how colors are plotted or printed on paper. These files contain information about line weights, colors, and other properties that determine the appearance of drawings when they are printed or plotted.

Default CTB File Location

By default, AutoCAD stores CTB files in a specific folder on your computer. The exact location may vary depending on your operating system and version of AutoCAD. However, here are the general paths for the most commonly used versions:

  • Windows 10: C:\ProgramData\Autodesk\AutoCAD (version)\R (release)\enu\Plotters\Plot Styles
  • Windows 8/7/Vista: C:\ProgramData\Autodesk\AutoCAD (version)\R (release)\enu\Plotters\Plot Styles
  • Windows XP: C:\Documents and Settings\All Users\Application Data\Autodesk\AutoCAD (version)\R (release)\enu\Plotters\Plot Styles
  • Mac OS X: /Users/Shared/Autodesk/AutoCAD (version)/R(release)/enu/Plotters/Plot Styles

It’s important to note that the “ProgramData” or “Application Data” folder may be hidden by default. You can either enable the display of hidden files or use the file path directly in the Windows Explorer address bar.

Modifying CTB Files

To modify an existing CTB file or create a new one, you can use the AutoCAD Plot Style Manager. This tool allows you to edit plot styles, assign colors to different lineweights, and customize various printing properties.

To access the Plot Style Manager, open AutoCAD and go to the “Manage” tab in the ribbon. Then click on “Plot Styles” in the “Customization” section.

The Plot Style Manager window will appear, displaying all available CTB files.

Creating a New CTB File

To create a new CTB file, click on the “New” button in the Plot Style Manager window. Give your new plot style a name and start customizing it according to your preferences.

You can assign colors, lineweights, and other properties to different object layers or object types.

Modifying an Existing CTB File

If you want to modify an existing CTB file, select it from the list in the Plot Style Manager window and click on the “Edit” button. Make your desired changes and save them before closing the editor.

Using Custom CTB Files

Once you have created or modified a CTB file, you can apply it to your drawings by selecting it as a plot style in the “Page Setup” or “Plot” dialog box. Simply choose the desired CTB file from the list of available plot styles, and AutoCAD will use it for printing or plotting.

In conclusion, CTB files in AutoCAD play a crucial role in defining how colors are plotted or printed. By understanding their purpose and knowing where to find them, you can effectively manage and customize your print settings to achieve the desired output.