neopixel to optical fiber customizable coupler

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neopixel (ws2812b) 144/M LED customizable coupler/adapter for fiber optics

This design is customizable, primarily you can change the number of LEDs you are using, or you can lengthen the tube and change some other measurements.

This was designed for a generic ws2812b 144/m light strip found on ebay for about $12. The LEDs are 5050 (5x5 mm), spaced out by 2mm on each side.Your design may have slight variance so you can customize this as needed.

video of coupler in action
https://youtu.be/q0YkyLGdePY

part of larger project: https://github.com/aapocketz/nautical_neopixel

print details

I printed this with white PLA without supports using the default settings.
led_count = 10
tube_height = 10
width = 14
chamfer_radius = 3
wing_height = 1.5
led_size = [5.4, 5.6, 1.65]
wall_thickness = 2.5
clearance = 1
strip_thickness = 1

If you want to do longer strips, increase led_count, though you can also just glue multiple strips together.

One issue I have with this print bleed between light from adjacent LEDs. Perhaps using a darker filament would reduce that light bleed, as the white PLA I used is more translucent than opaque.