Which looks like this with the LEDs and brass inserts installed:
The base holds an Arduino Nano with room for wiring under the cell array:
Which looks like this after it’s all wired up:
The weird colors showing through the inserts are from the LEDs. The red thing in the upper left is a silicone insulation snippet. Yes, that’s hot-melt glue holding the Arduino Nano in place and preventing the PCBs from getting frisky.
Soak a handful of glass tiles overnight in paint stripper:
Whereupon the adhesive slides right off with the gentle application of a razor scraper. Rinse carefully, dry thoroughly, and snap into place.
Tighten the four M3 SHCS and it’s all good:
So far, I’ve had two people tell me they don’t know what it is, but they want one:
The OpenSCAD Customizer lets you set the array size:
However, just because you can do something doesn’t mean you should:
Something like this might be interesting:
In round numbers, printing the frame takes about an hour per cell, so a 2×2 array takes three hours and 3×3 array runs around seven hours. A 6×6 frame is just not happening.
The OpenSCAD source code as a GitHub Gist: