Unwound tetrahelix
Unwound tetrahelix
Unwound tetrahelix
Unwound tetrahelix
Rectangular
Rectangular
Rectangular
Rectangular
Triangular
Triangular
Triangular
Triangular
Tetrahedron-in-cube
Tetrahedron-in-cube
Tetrahedron-in-cube
Tetrahedron-in-cube
Unwound quadrahelix
Unwound quadrahelix
Unwound quadrahelix
Unwound quadrahelix
Tetrahelix (mirror)
Tetrahelix (mirror)
Tetrahelix (mirror)
Tetrahelix (mirror)
Rectangular (mirror)
Rectangular (mirror)
Rectangular (mirror)
Rectangular (mirror)
Rectangular (stabilised)
Rectangular (stabilised)
Rectangular (stabilised)
Rectangular (stabilised)