Spool Inspector

$63.54for selected items

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
All electronic components needed to build a Spool Inspector yourself. Requires soldering. You will also need to 3D-print the enclosure parts — the STLs are on MakerWorld: Spool Inspector on MakerWorld.

Configure your DIY Kit

Set 0 to skip any item you already have, or raise the count for extras.

Heads up — 1 item is currently out of stock and cannot be added. You can still order the rest of the kit.

  • PCB Set$12.00

    $12.00 each

  • Pre-Programmed ESP32S3 Sense$25.00

    $25.00 each

    • • 1× Pre-programmed Seeed XIAO ESP32S3 Sense
    • • 2× 7-pin male headers (included from Seeed)
    5 available
  • OV5640 $12.99

    $12.99 each

    3 available
  • OLED 1306$3.00

    $3.00 each

    2 available
  • 5kg Load Cell$5.00

    $5.00 each

  • 6x6x8 Buttons - 1 Pair$1.00

    $1.00 each

  • Piezo Buzzer$1.00

    $1.00 each

  • Pre-Made Dupont Cable SetOptional$0.00

    $3.99 each

    4 available
  • Dupont Kit (Raw Components)$1.00

    $1.00 each

    • • 2× 4-pin Dupont housings (for the OLED cable, both ends)
    • • 3× 2-pin Dupont housings (one per button and buzzer cable)
    • • ~14× Dupont female crimp pins
    • • 26–28 AWG stranded wire (~1 ft, assorted colors)
    3 available
  • Header Pack$0.55

    $0.55 each

    • • 1× 4-pin header (for OLED)
    • • 3× 2-pin headers (for buttons and buzzer)
    3 available
  • Heat-Set Insert Pack$1.25

    $1.25 each

    • • 4× M4×8mm heat-set inserts (knurled brass)
    4 available
  • Screw & Nut Pack$0.75

    $0.75 each

    • • 4× M2×4mm screws (PCB mount)
    • • 4× M4×25mm screws + 2× M4 nuts (load cell)
    • • 2× M3×14mm screws + 2× M3 nuts (OLED cover)
    • • 4× M3×12mm self-tapping screws (housing to base)
    3 available
  • 100g Calibration WeightOptional$0.00

    $5.49 each

    Out of stock
  • USB-C CableOptional$0.00

    $2.50 each

    5 available
  • 3D-Printed PartsOptional$0.00

    $65.00 each

11 items selected$63.54

Tools you'll need

Consumables

  • PLA filament

    ~450g for the full enclosure, scale, and accessories

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For detailed specs, firmware updates, and documentation visit 3dspooltracker.com

Documentation

Build GuideUser Guide