Win32 and 64, English

Tharwat Al Shoufi
Create Flexible HVAC Ducts dynamically.

General Usage Instructions

As soon as you run the command Flx or FlexibleDuct, the program prompts you to specify the Diameter & the Number of fins. After that, you should select Lines, Arcs, Splines or LWpolylines in order to convert them to Flexible Duct.



Ribbon/Toolbar Icon Command Command Description


Once you have downloaded the app, run this command to obtain the machine codes in the command line and send an email to us to receive the full license.

Flx or FlexibleDuct

Type Flx or FlexibleDuct to start the program.


The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.

Additional Information

Known Issues


Company Name: Tharwat Al Shoufi
Support Contact: tharwat313@yahoo.com

Author/Company Information

Tharwat Al Shoufi

Version History

Version Number Version Description


Added 2025 support
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