Bomb Busters insert in two parts, Prusa Mini-friendly [FreeCAD]

Full insert system for Bomb Busters, the main insert is in two parts, allowing it to be printed on small printers (like my Prusa Mini).

I remixed the nice model from @Waschbaer91_343459 , the clue tray is unchanged, the rest has been modify to make it more solid and to add a tray to keep things in place while allowing to add elements,