(Archive of: http://www.thing-a-day2.com/2008/02/18/day-18-thing-18-cd-hole-based-circuit-board/)
I havent made a circuit board in ages. I was thinking that if I made circular pads for the leds they might make a decent reflections for the display. I made the etch mask for this out of the holes for press on cd lables and 1/8″ engineering tape.
In the middle of this I realized that I need to get some more tinning solution.
I plan to cast this in less expensive fiberglass resin once I have finished the 4 panels.