In this section, the process of assembling the grid of LEDs and then attaching the grid to a perf-board will be explained. Typically, individual LEDs in a cube are connected together by their cathodes and anodes. Some sort of jig or frame helps keep the LEDs uniformly spaced apart. After the grid is completed, it is attached to a perf-board - a board uniformly perforated with metal-rimmed holes. All of the electronic components for the cube will eventually be attached to the same perf-board, allowing the circuit to be soldered together on one surface.
Soldering the Grid