mathematical object with 6 openings —

Founded mathematical object with 6 openings models & stl files for printing
Dual polyhedra
henryseg
Dual polychora
henryseg
Geodesic spheres
henryseg
Ball joint chain
henryseg
Polygonal torus
henryseg
Eight cubes
henryseg
Voronoi Cell Egg
funkshin
64sided Tetrahedron  FREE STL
Droppingformdesigns
Tilt Switch
JuBe95
Ball in Ball
rigtig
Interlocked 3
rigtig