Airbus A320 EFIS Korry style Switch

Korry style switch for the 7 buttons on A320 EFIS panel. 3D printed parts are Button Light Guide and Button Housing. Both printed in Black PLA, 100% infill, 0.15 layer height.

Button Top Indicator and Bottom Legend are CNC machined from acrylic. Top from 3mm smoked glued to 3mm clear. Bottom from 3mm opal glued to 3mm clear.  Two halves glued together, with coat of black paint between to eliminate light bleed. Overall then sprayed black and engraved. Smoked Top creates hidden until lit for green indicator. Opal bottom shows text even when backlighting is off.

Design includes PCB for LEDs, resistors, switch and header pins. ZIP file is included for ordering this from JLCPCB or PCBWay etc...

Designed to fit my EFIS Panels:

https://www.printables.com/model/635818-airbus-a320-efis-panels

PCB Components:

Switches: (4.3mm through hole version) 50/100PCS 3X6mm H=5/4.3mm DIP 2Pin SMT 260GF Micro Switch Black White Push Button Switch Momentary Tact Switch Key Power Button - AliExpress  

LED's : (Green and White) 100Pcs 2x5x7 mm Square LED Diode White Red Green Blue Yellow Orange 2x5x7mm Rectangular Clear Diffused DIY Lights Emitting Lamp - AliExpress

Resistors:  Any ¼ watt

Header Pins: Any 0.1"

Assembly:

1. Solder switch to top and header pins and resistors to bottom of PCB
2. Slide LED legs through bottom of light guide and solder to PCB
3. Glue Indicator and Legend to top of light guide
4. Slide housing down over light guide and glue bottom edge to PCB
5. Glue into back of EFIS panel