“Kick the tyres & light the fires” is a blog by [Ruscool Electronics] that is focused on building a cockpit simulator from scratch, and while the blog is loaded with all sorts of nifty information, reader [Brian] pointed out one entry which explains how to make back-lit control panels out of acrylic sheet, and a CNC machine.
The parts start off as clear acrylic, and cut to shape and size. Next up is a thick, but uniform coat of paint so the panels are opaque , then its back off into the CNC machine for engraving. What is engraved is now a frosty white, ready for leds behind.
The end result looks fantastic and professional, though, we are left thinking of how to pull off the same look, sans CNC.