Borromean Rings - Hexagons

Borromean Rings. Intertwined hexagons. Impossible to separate.

Nice demo object to showcase 3D printing capabilities.

Also maths! :)

FreeCAD 0.19 model included.

Two STL files with 3 rings have tight and loose tolerances. 

Tight model rings will slide on each other, but mostly keep themselves on a single plane.

Loose model rings might do some acrobatics when you aren't looking!

Have fun!