[HN Gopher] The Hat, the Spectre and SAT Solvers (2024)
       ___________________________________________________________________
        
       The Hat, the Spectre and SAT Solvers (2024)
        
       Author : todsacerdoti
       Score  : 63 points
       Date   : 2025-06-13 15:14 UTC (7 hours ago)
        
 (HTM) web link (www.nhatcher.com)
 (TXT) w3m dump (www.nhatcher.com)
        
       | CliffStoll wrote:
       | Terrific article by Nicolas Hatcher! Aperiodic tilings are fun to
       | make from paper, wood, and ceramics. I've cut tiles from ceramic
       | field tiles.
       | 
       | No surprise that concave cuts in ceramics are a high stress, so
       | Kite and Dart tiles don't work very well (the dart is likely to
       | crack). Same is true for the Turtle, Hat, and Spectre.
       | 
       | Rhombus tiles are everywhere convex, and the P3 Rhombus tiles are
       | easy to cut in a diamond saw (or even a snap-cutter). With a
       | diamond band-saw, it's possible to make Penrose rhombs with
       | curved (parabolic) edges.
       | 
       | But cutting tiles from stock field tiles produces sharp surface
       | edges -- you don't want these as bathroom floor tiles. Also, you
       | waste a lot of the field tile as scrap. To get "friendly" tile
       | shoulders, I'm experimenting with making Penrose tiles directly
       | from high-fired porcelain clay.
        
         | nhatcher wrote:
         | Hey, thanks! Good luck with your Penrose tiles. I wish I had
         | the time myself :)
        
         | gus_massa wrote:
         | Do you have some photos? It may be a nice post.
        
         | kurthr wrote:
         | Interestingly, when firing your own, you could also make
         | Supertiles from combinatorial collections of Penrose or other
         | aperiodic tiles.
        
       ___________________________________________________________________
       (page generated 2025-06-13 23:00 UTC)