Frame Stiffener Tool

Frame Stiffener Tool

Win64, English

Bas Automation Services
Plug-in for creating stiffeners for frame generator I-Beams and Channels in Autodesk® Inventor®.

General Usage Instructions

The Frame Stiffener plug-in has been developed to allow Inventor users to easily place and edit stiffener plates in I-Beams and Channels generated by Frame Generator. Placed stiffeners can be updated automatically when you update the beam using the ‘Edit with Frame Generator’ command.



  • Adding stiffeners in any I-Beam or Channel.
    • It is possible to place stiffeners in multiple beams at the same time.
    • Stiffeners will be constrained to two beam planes, the constraint in the beam direction has to be applied manually.
    • The tool works for both sloped flanges and parallel flanges.

  • No duplicate parts will be placed in the assembly.
    • The tool checks for 'similar' stiffeners in the assembly using the Beam ID and the stiffener configuration.
    • Also sub-assemblies are checked.

  • Quickly editing existing stiffeners.
    • Right click on the stiffener or press the 'edit stiffeners' command.
    • Multiple stiffeners can be edited at the same time.

  • Automatic updating when replacing frame generator beams (does not work for profiles from content center).
    • As long as the target beam is also an I or U section the stiffener will be updated.
    • Make sure to enable the auto-updating setting.
    • Prompt can be disabled in the settings.

  • Customizable settings
    • Change the part template.
    • Change default configuration.
    • Link parameters. 
    • Change saving directory.
    • Edit file naming defaults.


Please watch this video for a short overview of the Frame Stiffener plug-in.


Ribbon/Toolbar Icon Command Command Description

Add stiffeners

Starts by asking the user to select a stiffener position, must be in a I-Beam or Channel from either the Content Center or Frame Generator. When a position is selected a preview is shown. The configuration can be adjusted in the toolbar. Press apply to update the previews, press OK to place all previewed stiffeners.

Quick place on one side

Places a stiffener with last used settings in on the selected position, on one side of the beam.

Quick place double sided

Places a stiffener with last used settings in on the selected position, on both sides of the beam (I-Beams).

Edit stiffeners

Starts by retrieving all selected stiffeners, or asks user to select an existing stiffener. When an occurrence is selected a preview is shown. The configuration can be adjusted in the toolbar. Press apply to update the previews, press OK to replace all previewed stiffeners.


Adjust the part template, default configuration, linked parameters, saving location and filename defaults.

Update stiffeners

Prompts user to pick a beam. Updates stiffeners in selected beam to the new beam section.


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 can unload the plugin without uninstalling it by unchecking the "Loaded/Unloaded" checkbox associated with the plugin in the Inventor Add-In Manager. You may have to restart Inventor to completely unload the application.

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, you can uninstall it from 'Control Panel/Programs and Features' (Windows 7/8.1/10), just as you would uninstall any other application from your system.

Additional Information

Known Issues

  • Automatic updating does not work for content center beams.
  • When editing a stiffener the occurrence being edited will not be hidden. When the target dimensions are smaller the preview might become invisible.
  • You have to be logged in on your autodesk account and connected to the internet to use this application. 


Company Name: Bas Automation Services

Author/Company Information

Bas Automation Services

Support Information

 For support e-mail to 

Version History

Version Number Version Description


- Fixed bug where stiffeners couldn't be placed in channels with the origin in random position (AS 3679) - Removed dialog to confirm to replace equal stiffeners in the same beam when (auto)updating stiffeners. - When editing a stiffener the dialog will still popup because it could be that you want to change the thickness of all occurrences of one stiffener.


- Added saving directory option relative to project. - Added folder browsing dialogs for saving folders. - Fixed bug where stiffeners couldn't be placed in frame generator sub-assemblies and patterns. - Fixed a context bug to use the ActiveEditDocument instead of the active assembly. - Added support for Sheet metal templates. - Added index number property in filename which will find parts with a similar pattern and increment the part name (i.e. Plate 01, Plate 02, etc). - Replacing stiffener will if possible, use the same part, if multiple occurrences are found of the type that you are replacing, you are asked to replace all or just this one. - Some more small bugfixes.


Added certificate


Initial release for Inventor 2021
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