Boeing 737 - Overhead Cabin Pressure Panel (Mechanisms not included)
This model includes the following panels (With both back-plate and front-plate at real accurate aircraft scale and ready for 3D printing):
The files are designed in a way that allows creating the backlight effect without the need for a laser cutting machine. For that, just do the following steps:
(1) - Print the panels with transparent PLA. (I recommend printing it with 20% infill, and 0.12mm quality). (2) - Apply primer and paint your panels the way you want (Do not sand them yet). (3) - Now with your primer and paint finished, place your sandpaper (I recommend higher grits) on top of a flat surface, and rub the panels on top of it, so that the paint that covered the decals comes out; be careful to not damage your painting.