This is not about a specific model, it's about my python/SolidPython script that creates arbitrary grid trays (with rounded bottoms so there's no corners), useful for organizing lots of small items. Especially nice for creating board game organizers.
The script is attached, it is called "generic_tray.py". You run it from the command line with the grid dimensions and it will spit out a .scad file and [optionally] a .stl file. It will also show you the [approximate] volume of each bin.