LED Backlit Pushbutton
thingiverse
This is a straightforward and effective method for creating a backlit LED using the widely available tact switches from Omron and an LED. It's very simple to design your own custom buttons for this setup, as all you need is a 7mm hole that is 1.5mm deep, along with another hole that is smaller than the first but larger in diameter than the LED (I used a 6.10mm hole in mine) that is at least 4 mm deep to accommodate the LED.
Download Model from thingiverse
With this file you will be able to print LED Backlit Pushbutton with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on LED Backlit Pushbutton.