HO traffic light
thingiverse
HO traffic light that uses 3mm LED's. I have the LED's wired to an Arduino Nano that is running a script to cycle the lights.
Download Model from thingiverse
With this file you will be able to print HO traffic light 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 HO traffic light.