Now including Blender 2.83 scene file with Eevee render settings and materials!
Dimensions:
X = 42.6 mm
Y= 43.3 mm
Z= 43.3 mm
This is hand-modeled, based on the Schoen G surface, or single gyroid minimal surface. This would make an interesting desktop discussion piece or just a pretty stress reliever if printed with solid wall thickness. Also useful for motion graphics or abstract 3d rendering.