Spool Inspector
$12.00
Smart filament spool tracker with real-time weight monitoring, camera-based QR code detection, OLED display, and a built-in web dashboard. Track your filament usage across multiple spools with WiFi connectivity.
Features
- Weigh filament spools in real time with a precision load cell
- Automatically identify spools by scanning QR codes with the built-in camera
- View weight, spool info, and status on the OLED display
- Monitor remotely via the built-in WiFi web dashboard
- Integrates with 3dspooltracker.com for multi-spool tracking and history
What's Included
- •Spool Inspector Rev 1.0 main PCB (HX711 + SMD components pre-soldered)
- •Button breakout PCB
Additional Information
You will need to source all other components separately: ESP32S3 Sense, OV5640 camera, OLED display, load cell, buzzer, buttons, headers, fasteners, wire, and 3D printed enclosure. See the Build Guide for the full BOM and assembly instructions.
Tools you'll need
Includes the crimper plus extra housings and pins
For pressing brass inserts into 3D-printed parts
Klein 11057 — for stripping Dupont hookup wire
- Hex key / screwdriver set
M2, M3, and M4 — for mounting hardware
Consumables
~450g for the full enclosure, scale, and accessories
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For detailed specs, firmware updates, and documentation visit 3dspooltracker.com