Knight Killer Dagger

A 3D printed replica of Solo Leveling Knight Killer Dagger with some LEDs inside.

 

It even has some colorful animations :

 

The dagger is powered by a rechargeable battery and we can change color, animation and speed with buttons integrated into the hilt.

3D Model

It was fully modeled using Fusion 360 :

 

All the pieces were printed in black PLA except for the edge of the blade printed in transparent PLA to let the LEDs shine through.

Components

• Arduino Pro Micro

• WS2812B Addressable LED Strip

• TC4056E based Protection Circuit

• MT3608 Boost Converter

• 18650 Li-ion Battery

Schematic

Libraries used

• FastLED : LED control

• OneButton : Easy button usage & double click

Inspiration

Solo Leveling Webtoon :