the realization of the panel
LEDs sanded on top to obtain a better diffusion of the light, otherwise to much concentrated
LEDs mounted on the back panel
Front panel (big holes = light mask) mounted on top of back panel with LEDs.
The basic components used to realize the LEDs matrix panel. Two expanded PVC 20x20cm sheets, the letters mask and some diffusion sheets.
A printout from the letters grid is used as a drilling mask to mark the places to drill.
Engravig with a pin helps guiding the drill bit .
Guiding the boring machine with a laser pointer the drill precision is enhanced a lot, obtaining a very regular pattern.
Front panel with larger holes that act as a mask