This is a Python script to interface with Fusion 360's API for updating the CAD model of the Lens Cap holder. It will prompt the user to provide a minimum and a maximum lens diameter, and the width of the camera strap. Then, the script will create versions of the lens cap holder in 1 mm increments between the minimum and the maximum diameter, for the strap width indicated by the user. It will save all the variations as STL files in a directory indicated by the user.
If you'd like to learn more about this, I wrote an article about how the script works.