This is a trailer in 1/87 (H0) scale for lightning of a small model scene without using external lamps. The LEDs are bright enough to provide some decent night flair.
For the lightning I used 5 Neopixel RGB LEDs and 2 red SMD LEDs (type 0603). 4 of the Neopixels are lighting the sourrounding of the trailer from the top of the mast. Their color and brightness is individually adjustable. The fifth Neopixel lights a screen at the side of the trailer. The two red LEDs are used as the rear lights. They use 470Ohm as a series resistor. The brightness of all LEDs and the color of the Neopixels is controlled by an Arduino Nano.
Neopixel RGB LED: https://www.amazon.co.uk/Adafruit-WS2812B-5050-Integrated-Driver/dp/B00SK8LY9A/ref=sr_1_23?ie=UTF8&qid=1518191595&sr=8-23&keywords=neopixel
SMD LED 0603 red: https://www.amazon.co.uk/HALJIA-Yellow-Green-White-Light-Emitting/dp/B01DF3K77Y/ref=sr_1_1?s=electronics&ie=UTF8&qid=1518191667&sr=1-1&keywords=led+smd+0603
I failed assembling the top of the mast because the wire I used was too thick to fit into the printed parts. I think using enamelled copper wire should work.
| body.stl | 21.7KB | |
| circuit.pdf | 371.0KB | |
| drawbar.stl | 3.2KB | |
| fender.stl | 3.0KB | |
| mast.stl | 4.6KB | |
| mast_hinge.stl | 12.6KB | |
| mast_support.stl | 4.8KB | |
| mast_top.stl | 11.2KB | |
| spot.stl | 3.8KB | |
| wheel.stl | 87.4KB | |
| wheel_jockey.stl | 6.7KB |
