Hi, this is my latest project:

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Hi, this is my latest project: “metaPixel”
A couple of 3D printed modules displaying colourful effects.
Controlled by a Teensy 3.1 and driven by FastLED this display is like a digital fireplace.
The sources can be found at https://github.com/Spirou42/metaPixel and the 3D-Models are at https://www.youmagine.com/designs/metapixel
http://www.youtube.com/watch?v=Fx46KnN5jqw

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I like the diffusion of the LEDs, what did you use?

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@Stuart_Taylor The diffusor is a 0.8mm thick 3D printed foil. I have used the transparent XT ( an PET-G variant i think) filament from http://colorfabb.com for the transparent parts while the boxes, covers and grids are made from black ABS.