Penrose Triangle

For your Christmas gift this year, I'm going to make you a steel sculpture that can serve as an early prototype for Lightform. I've designed a faceted piece inspired by the Penrose triangle optical illusion. The inner and outer faces will be sanded and buffed to a bright, satiny sheen, so that it's obvious that the piece is made of welded steel. The nine front faces will be sandblasted, giving them a pale, matte finish that's suitable for being projection-mapped. In the rendering above, the maroon color indicates the sandblasted surfaces for projection.


Specs


History

From Wikipedia: The Penrose triangle, also known as the Penrose tribar, is an impossible object. It was first created by the Swedish artist Oscar Reutersvรคrd in 1934. The psychologist Lionel Penrose and his mathematician son Roger Penrose independently devised and popularised it in the 1950s, describing it as "impossibility in its purest form". It is featured prominently in the works of artist M. C. Escher, whose earlier depictions of impossible objects partly inspired it.

Recently, people have started 3D printing Penrose triangles and other "impossible objects." 


References


 Note

I waited to begin fabrication so that you can weigh in on the design. I want to make sure you like the look of it! And I want to make sure that the faces and surfaces will lend themselves to being projection-mapped. So consider this v1! I'm looking forward to refining the design with your input. Merry Christmas, my love!