The Modular Wind Tunnel for STEM Education is distributed in the Printables Store and is therefore automatically licensed with a Standard Digital File license that, unfortunately, limits the community's ability to contribute to the project with their own modules, test articles, and custom components.
This upload is an attempt to permit this type of community contribution. Here, I provide Fusion360 design source files and STEP files with a more-permissive license, specifically to support the development and distribution of your modifications, customizations, and otherwise fun ideas.
Enjoy!
The author marked this model as their own original creation.