It has been a while but I made acrylic support last November. It makes a nice looks to the clocks.
At the base of the tube, there is 3 LED on some of the clocks. It never looked as pleasing as the idea. Waiting to see how the 8+3 mm acrylic support diffuse that light.
In order to have a correct hardware/software match, I designed the PCB with a hardware prototype made with the MSP430 IV-18 BoosterPack. I begun to write my own firmware on this early prototype and did power consuption/battery testing.