Chainaxe Build Guide
Everything you need to build your own cosplay chainaxe — from 3D printing to electronics, firmware, and painting.
Welcome! This guide covers every step of building the Chainaxe prop. There are several build options depending on your skill level, budget, and desired features.
Just want a static display piece? The STL files for a non-motorized version are available separately — get static STL files here →. Print, glue, paint, done. No electronics needed.
For the motorized version, choose one of the four options below. Each option page includes its own component list.
Option
Features Included
Difficulty
Soldering
Firmware
Est. Cost
Alex Geek Board Kit Recommended
Motor control
Sound + volume
OLED display
Overcurrent protection
Precision voltmeter
Battery tracking
Phone app + telemetry
Reversible motor
Easy
Plug & playNone
Pre-flashed
$130
Kit — all included
MP3 Board Build
Motor control
Sound playback
Volume control
Basic
Multiple connectionsRequired
None
~$40–50
Self-sourced
ESP32 DIY Build
Motor control
Sound + volume
OLED display
Battery tracking
Reversible motor
Advanced
Complex wiringRequired
Flash required
~$100
Self-sourced