CNCed lampshade

Portuguese Thingiverse user Gonçalo Azevedo created a lampshade called Strømg Lump Leaks:

The used technique is self supporting interlocking of pieces (without gluing, screwing or nailing) of 547 different pieces of polypropylene routed with a three-axis CNC.

The DXFs may be downloaded from the Thingiverse page.