Been working on this for a long, long time and now I've finally managed to put together the first prototype.
The idea was to create a modular modular case with external power distribution so that you can add on extra rows as your system expands.
I originally intended to offer this for sale but there are a few design issues that need resolving and the cost of manufacture is a little prohibitive.
The choice of colours of the prototypes are just to demonstrate the kind of materials available - I know they're a little eye-popping but that was the idea.
Anyway, at some point I might come back to this but for now it remains as a one-off and is my current modular case.
DIY modular electronics