Create boxes in volume

You say that solid diference works fine, so why do we still see the boxes outside the form in your first image ? Shouldn’t they be “differenciated” and disabled ? I had the same result and thought that it wasn’t working since the end result shows the boxes still.

if A and B difference is calculated (lets call it A-B)
one is searching for things in A but not in B
“A” itself is in A and not in B
so if A and B are seperated, A-B shows the result of A

use contours to do booleansplit in rhino?

The simple way to do that, think i, is a pluggin name “Voxelizer”.
You can find it in Drububu.com…: Voxelizer.
Free, and online pluggin.
That transform all shapes in box-groups, like Lego square-pieces!.

You can add your stl ( or other file format);
But you need control the dimension-object.
( with that you can all forms-volumens transform for Lego pieces,
For example).
Greetings
Here the images…see the different scale-box-appartements nedded.
You can see the number pieces too.
……




The same , but “ Legolizer”….
Making Lego pieces from an object 3D.
Free online
( each box an appartement, etc).=animal architecture?