Sharp PCB on CNC for backlight:
Tomorrow or the next day completed yet light.
For plate use:
1) Aluminium plate 2 mm
2) PCB 1 mm
3) Polyvinyl chloride panels (how right in English?) 4mm (or without PCB 5mm)
4) Milky acrylic glass 2 mm
I cut acrylic panel on CNC, and then painted in black. When the paint has dried on it label engraved depth of 0.1 mm.
Sorry, for my English :)