Side project to experiment diffusing addressable rgb leds with 3D prints. The shell was 1.5mm thick, from translucent PLA material. If you curve the strip of leds opposite to the profile created by the shell, it helps diffuse it a bit better since it’s further away, and the curvature can make some of the elements closer / farther apart – this way it doesn’t look like a straight line. No interactivity in this project, it’s just the lights. Played and learned about ways to position the leds to cause minimal shadow effects, and diffusing evenly (as possible).

Here’s what it looks like glowing!

Two halves are joined by an inner disk. The inner disk holds two pieces that form the interior shape for the led strips. The microcontroller sits in between. The power cable exits through a slot in the back. There are two mounting points at the top where fishing line is strung to hang it up.

This is the interior shape

Another way of going about it could have been making a pillar in the centre, and wrapping the led strip around it (like a candy cane).

Another approach may also be to have two shells to diffuse the light. The inner shell could be a thin wall (0.4mm) with a variety of faces to make an interesting light pattern. The outer shell would then be a bit thicker, and help to evenly diffuse the light across the shape.

This was a very easy project with a fun result!