An alternate box to hold the electronics from Qrome's excellent ESP8266 scrolling marque clock project. Please see his project to see features, required components, etc. https://www.myminifactory.com/object/3d-print-esp8266-scrolling-marque-clock-65739
I liked the idea, but wanted both a slightly longer display (this case is for a display made from 5 matrix units rather than just 4), and wanted it to sit on the top edge of one of my monitors in a similar way to how my Logitech center-speaker sits on top of a different display.
Besides the basic clock components, this case will require 4 short M3 screws to hold the back on (I used M3x4 socket-caps that I had laying around - the holes are deep enough to take an M3x6), and a longer M3 screw and nut to hold the back foot on and serve as the hinge. You'll want at least an M3x14 back there, extra length will just stick out.