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RGB LED MegaStar

by Sn00zerman, published

RGB LED MegaStar by Sn00zerman May 8, 2015
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Summary

RGB LED "Mega"star for my upcomming Christmas show :-)
This star contains 146 addressable WS2812B RGB LEDs.

This star will sit on top of our "MegaTree". (christmas tree with about 7100 addressable RGB LEDs in it)
It measures approx. 50 cm in diameter (that's about 20" for my American friends)
Printable on a standard 20cm (8") heatbed.
Pieces can be connected with M4 nuts/bolts.

Here is a small video of the star in action, with the default Adafruit neopixel library test:
https://www.youtube.com/watch?v=68AvOlbgXvE

Instructions

Needed prints:

1x middle-bottom
1x middle-top
5x wing-bottom
5x wing-top

connect pieces together with M4 nuts/bolts,
and glue LEDstrips in, so the LEDs face "outward" the sides of the star.

outer ring = 50 LEDs, next ring = 40 LEDs, next ring = 30 LEDs, inner ring = 20 LEDs, inner star = 5 LEDs, inner-hole = 1 LED
(you need to make holes for the wires yourself, depending on how you want to connect the different LEDstrips)

Next, text the LEDs, and glue the middle-top in place.
After this, glue the 5 wing-top pieces in place ...

Enjoy :-)

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Hi, this looks very cool! Just wondering if you could post a photo showing this built but not lit up to show the LED's and wiring more clearly. Tx!

Hello, I printed the stars in PLA, no color, the material is called "natural PLA".
(it's also comes by the name "transparant PLA", but is is actually some milky white half look-trough look ...)
Take a look at my other designs (my small stars and my leaping arches, you will find some clear pictures of the printed material within those designs)

best regards,
Kris

Which material did you use? Recommended color to have your result?

This is a great design, thanks for sharing.
Apart from making preparations for Christmas, this is a great way to practice Arrays using the Arduino.
I've ordered some white eSun PLA for the bases, I already have translucent PLA for the tops.
The tops look much too thick to let much light through, so I will probably thin them out to just a couple of layers.
I'll post a make when I'm happy with my coding.

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