Summary

Warning, this cube is huge and very detailed. It will probably take days and probably almost an entire roll of filament to complete.

Basically just placed a fractal cube inside of another fractal cube.
It's a remix of a fractal cube from turbosquid. Both files are included.
https://www.turbosquid.com/3d-models/fractal-cube-dxf-free/696411

Print Settings

Printer:

Artillery Sidewinder X1

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>.2</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>0%</p></div></p>                                                    <strong>Filament:</strong> Overture PLA                Black                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Use vase mode if it's available to you.</p></div>

Fractal Cube²