Extensions: Setup and usage
Updated:
23 Oct 2025
The functionality of Tekla PowerFab can be extended through the use of Extensions. These are C# (.NET) programs that accept a nesting request from a combining run in PowerFab. Here’s how to set up PowerFab to use extensions.
PowerFab Setup
Enable the extension Directory in Administration Settings
Define your Extension Folder in Default Directories
Put your Extension .dll file in your Extension Folder
Select “Extension” as your Nesting Software in a Combining Run
Export Parts for Nesting
Setup in your Extension
Use Tekla.PowerFab.Extension
In your .NET extension (C#) program, you must have a dependency on Tekla.PowerFab.Extension.dll. Find this in the same folder as Tekla.PowerFab.exe - where the program is installed.
Implement iExtension and iNestRequest
In order to work with PowerFab, your C# extension must implement iExtension and iNestRequest.
