Trimble - Transforming the way the world works.

When I open Trimble DuctDesigner 3D, my DuctDesigner 3D ribbon tabs are not there.

The CUI file needs to be reloaded.

  1. With the DuctDesigner 3D application open, enter the following in the AutoCAD® Command Line:


  1. Press Enter on your keyboard.

The DuctDesigner 3D ribbon tabs now display properly.