Modified Rotating Boxes | Rotate Anything

A very simple rotation box for a great variety of application thanks to @3DSage

The AAA battery box I bought is slightly larger and couldn't fit into the original model,
so I made the following modifications:
1. Increased the width of the compartment for battery box;
2. Added an opening at the bottom to easily pop out the battery box when I need to change battery.

I converted the stl file to solid body using Fusion360, and here I attached both the f3d and step for anyone who wants to further modify, but please note that the quality is not as good due to the conversion