12/02/2024: Modified version added: wall width slightly increased and pyramids can be connected.

Last photo -- side by side comparison with original (used the same printer, the same filament and the same settings). Round holes of original print were deburred (mine is with no post-printing modifications).

I printed it on Elegoo Neptune 4 in PLA and PETG (on photos black -- PLA, grey -- PETG) using the following settings:

Walls: 4

Supports: No

Layer height: 0.2mm

You may use brim for better adhesion (I printed without brim).