Blender 3D design

I need 3D graphics:

1) The given object (any choice, it can be ready eg. Tree, car, ship, etc.) must be surrounded (closed) with a virtual box (cuboid) and divided into smaller cuboids - such a grid in 3D. Put simply, we enclose a given object in a rectangular prism and divide it into smaller rectangles.

2) Each of these smaller cubes must be saved as a separate object (file) for the 3D printer, whereby information about empty spaces should be included, because there will be filling with a transparent filament.

3) It should be possible to resize both the cubes (mesh) of the net and the whole box.

4) Apart from the price, I care about the time because it is a prototype. I gave the Blender 3D program because I have it :)