Neopixel Mini Cube

This mini cube is made up of six 4x4 WS2812B panels giving a total of 96 individually addressable RGB LEDs. Buried inside the cube is a ATTiny85 microcontroller powered by a 120mAh Lithium Ion battery. It also contains a mercury switch and a couple of transistors to turn the cube on. The cube switches itself off after displaying a series of animations.

Video
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https://youtu.be/mVqQSdfhl90

Assembly
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3D print the holder for the panels with supports and a raft. After you clean off the support and raft, drill out the holes with a 2.5mm drill and create a thread with a 3mm tap. Next you need to wire up the six WS2812B panels. Start with the four side panels. I used 0.5mm tinned copper wire. Each time you complete a panel, test it on the former and re-adjust the wires if necessary to get a good fit without straining the connections and also having the screw holes lined up. Connect fine insulated wire (I used wire-wrap wire) to the VCC, DIN, GND on the first side panel