Transformers autobot led sign.

The WS2812b leds are controlled by an arduino nano and everything is powered by an USB C power supply. The approximate wattage is 7W. 

There are 3 buttons installed, 1 that turns it on and off, 1 to switch colors and 1 to start a heartbeat glow effect.

What I could improve, replacing the arduino with an wifi ESP and making better gaps to shine the leds through.

Parts used:

• ~600g of filament (I used PLA out of convenience)
• 26x WS2812b Leds
• 4x M3 inserts
• 4x M3 40mm screws (30mm if you dont use the hanger)
• 1x Arduino Nano
• 2x Tactile micro button switch, length of button 8mm
• 1x USB-C Socket SUS304-H
• 1x Rocker Switch (19.7 x 13.1 mm)
• 1x fuse (3A fuse advisable)
• Lots of hot glue
• Electrical tape and shrink tube
• Wire to solder connect everything