SpoolmanSync - Automatic Filament Tracking for Bambu Lab Printers (Beginner Friendly!)

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:tada: SpoolmanSync - Automatic Filament Tracking for Bambu Lab Printers

Hey everyone! I’m excited to share a project I’ve been working on: SpoolmanSync - a web app that automatically tracks your filament usage from Bambu Lab printers and
syncs it with Spoolman.

:thinking: What does it do?

Ever finish a print and wonder “how much filament is actually left on that spool?” SpoolmanSync solves this by automatically deducting filament usage from your Spoolman
inventory whenever a print completes. No manual logging required!

Key features:

  • :printer: Automatic filament usage tracking when prints finish
  • :bar_chart: Real-time dashboard showing your AMS trays and assigned spools
  • :art: Works with ANY filament brand - not just Bambu spools (Polymaker, Hatchbox, eSUN, etc.)
  • :arrows_counterclockwise: Supports AMS tray changes mid-print
  • :electric_plug: External spool holder support

:house: Home Assistant Integration

This project leverages:

:rocket: Beginner-Friendly Setup

I wanted this to be accessible to everyone, not just HA power users. So there are two deployment modes:

Embedded Mode (Easiest)

  • Bundles a pre-configured Home Assistant container with HACS and ha-bambulab already installed
  • One-click automation deployment - generates the proper automation.yaml and configuration.yaml based on YOUR specific printer, AMS units, and trays
  • Login via Bambu Cloud for easy printer setup
  • No YAML editing required!

External Mode

  • Connect to your existing Home Assistant instance via OAuth
  • Copy the generated YAML configs to your setup
  • Full control for advanced users

:clipboard: Requirements

  • Docker & Docker Compose
  • A Bambu Lab printer (X1C, P1S, etc.) with optional AMS
  • A running Spoolman instance (SpoolmanSync does NOT include Spoolman)

:camera_flash: Screenshot

Screenshot 2026-01-20 at 10.58.18 PM
Screenshot 2026-01-20 at 10.58.18 PM2536×1308 176 KB

:link: Links

GitHub: GitHub - gibz104/SpoolmanSync: Sync Bambu Lab AMS trays with Spoolman for automatic filament tracking

Would love to hear your feedback, feature requests, or bug reports! This is still a young project so there’s plenty of room to grow. :seedling:

Happy printing! :printer::sparkles:

1 Like
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Looks good, pretty similar to SpoolmanUpdater but without the hustle of creating your own yamls.
But one thing: Could you provide pre-built Docker images on e.g. GitHub Container Registry? This would make deployment much easier, especially for NAS users.

1 Like
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Thanks! Yes, SpoolmanUpdater was my inspiration, but I wanted to eliminate the manual configuration entirely. With SpoolmanSync, there’s no YAML editing and no Home Assistant expertise required - everything is configured through the web UI. The embedded mode bundles a pre-configured Home Assistant, so you just log in with your Bambu Cloud credentials and connect to Spoolman. It also includes QR code scanning for quick spool assignments. I built it in TypeScript/Next.js to hopefully be more contributor friendly.

I’ve just published the pre-built images to both GitHub Container Registry and Docker Hub. One image contains the SpoolmanSync app and the other image contains Home Assistant with HACS and ha-bambulab pre-installed. There is also a new docker-compose.prebuilt.yml file that can be downloaded on a NAS, which uses the pre-built images.

Let me know if you have any other suggestions!

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Thanks so much for the quick response and providing the pre-built images.
Really appreciated!

I actually do have Home Assistant with ha-bambulab already running, but I think I’ll start with the embedded mode anyway to keep everything isolated and test SpoolmanSync on my Synology NAS.

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Sounds good, let me know how it goes! If you run into any issues I will try to fix them as soon as possible.