The slicer CLI silently substitutes embedded defaults for any AMS slot
the user didn't supply a profile for. When a multi-color project (e.g.
a MakerWorld helmet with white shell + grey support filament configured
project-wide) was sliced for a "single-color" plate, the CLI took the
user's white pick for slot 1 and quietly filled slot 2 with the source
3MF's embedded grey support filament — producing a slice the user never
asked for. Same silent-fallback class as the strip-removal bug.
Backend `/filament-requirements` now returns the FULL project AMS slot
list (from project_settings.config) with a `used_in_plate: bool` flag
per entry. The flag comes from the cached preview slice for unsliced
files; sliced files (where slice_info.config already pre-filters by
used_g > 0) get used_in_plate=true on every entry. SliceModal renders
one dropdown per project slot — slots flagged used_in_plate=true are
editable, slots flagged false are auto-picked from project metadata
via the existing colour-match scoring and disabled with a
"-- not used by this plate" suffix. The wire format always carries a
profile per project slot, so the CLI never falls back to embedded
defaults.
Adjacent UX fixes in the same session, since they all hit the same
flow:
- Persistent slice-progress toast: SliceJobTrackerProvider now opens
a persistent loading toast per active job ("Slicing X -- 47s") with
a 1Hz elapsed-time tick and replaces it with the existing transient
success/error toast on terminal state. The previous start+finish
toast pair left a UX dead zone where users couldn't tell whether a
long slice was still running.
- "Analyzing plate filaments..." spinner now shows elapsed seconds and,
after 5s, a hint that the wait is a one-time preview slice (cached;
re-opens are instant). Addresses "is anything happening?" on first
open of an unsliced complex multi-color 3MF.
- Pre-slice printer-mismatch warning + disabled Slice button: the
plates response now exposes `source_printer_model` from
project_settings.config; SliceModal compares against the picked
printer profile name and surfaces an inline warning + disables Slice
on mismatch. The CLI rejects cross-printer slices (rc=-16) and used
to fall back to embedded settings, producing wrong-printer g-code
that errored at print dispatch.
- Sliced-archive card now reflects the actually-used filament list,
not the source's project-wide AMS config:
slice_and_persist_as_archive reads filament_type / filament_color
from the sliced output's slice_info.config (which already gates on
used_g > 0) instead of inheriting from the source archive. A 16+
swatch card on what was actually a 2-color print was the visible
symptom.
- MakerWorld URL-paste resolver enriches each instance with
`compatibility` + `otherCompatibility` from
design.instances[].extention.modelInfo. The /instances/hits payload
omits this so every instance row used to look identical; users
blindly picked the first one regardless of whether it matched their
printer.
Tests: 27 SliceModal tests (2 new for the disabled-row contract +
3 for printer-mismatch + 4 for multi-color rendering); 4 new
SliceJobTrackerContext tests for the persistent-toast lifecycle;
backend filament-requirements / slice-preview / threemf-tools
suites green.
i18n: new keys slice.queuedToast, slice.runningToast,
slice.analyzingPlateFilamentsHint, slice.notUsedByPlate,
slice.printerMismatch, makerworld.slicedFor, makerworld.alsoCompatible
across all 8 UI languages (English + German fully translated, the six
others seeded with English copies pending native translation, matching
the project's existing flow for newly-added user-facing features).
Bambuddy
Self-hosted print archive and management system for Bambu Lab 3D printers
Features • Screenshots • Quick Start • Documentation • Forum • Discord • Contributing
📣 Contributors Wanted — Help Shape Bambuddy
Bambuddy is a community-driven project and I'm actively looking for contributors — especially for two areas I can't cover alone:
- 📝 Documentation writers — help improve the wiki, guides, and feature docs so new users have a smooth onboarding
- ⚙️ Discourse admin — our Discourse forum is now live at forum.bambuddy.cool but still needs to be configured, themed, and tuned (categories, permissions, SSO, email, plugins, backups). If you know Discourse or want to dig in, I'd love your help.
- 💬 Forum moderators — help welcome newcomers, answer questions, and keep discussions healthy on the new forum
You don't need to be a developer for the docs or moderator roles. If you enjoy writing, helping others, or keeping a community friendly, you're exactly who we're looking for.
Get in touch:
- 🗣️ Forum — chats, longer discussions, guides, and community Q&A
- 💬 Discord — fastest way to chat
- 🐙 GitHub Discussions — open a thread
- 📧 martin@bambuddy.cool — email Martin directly (no GitHub or Discord needed)
🌐 NEW: Remote Printing with Proxy Mode
Print from anywhere in the world — Bambuddy's new Proxy Mode acts as a secure relay between your slicer and printer:
- 🔒 End-to-end TLS encryption — FTP, file transfer, and camera are transparently proxied with the printer's real TLS certificate
- 🛡️ Optional Tailscale integration — per-VP toggle + Docker socket mount brings Bambuddy into your tailnet, so virtual printers are reachable from any tailnet device over a private WireGuard tunnel without port forwarding (setup). Bambuddy's self-signed CA import is still required for the slicer side because both Bambu Studio and OrcaSlicer only accept IP addresses in the Add Printer dialog — the Tailscale benefit here is the tunnel, not cert-import elimination.
- 🌍 No cloud dependency — Direct connection through your own Bambuddy server
- 🔑 Uses printer's access code — No additional credentials needed
- ⚡ Full-speed printing — Transparent TCP proxy, only MQTT is decrypted for IP rewriting
Perfect for remote print farms, traveling makers, or accessing your home printer from work.
Why Bambuddy?
- Own your data — All print history stored locally, no cloud dependency
- Works offline — Uses Developer Mode for direct printer control via local network
- Full automation — Schedule prints, auto power-off, get notified when done
- Multi-printer support — Manage your entire print farm from one interface
✨ Features
📦 Print Archive
📊 Monitoring & Control
⏰ Scheduling & Automation
📁 File Manager (Library)
🌍 MakerWorld Integration
📁 Projects
|
🔔 Notifications
🧵 Spool Inventory
🔧 Integrations
🖨️ Virtual Printer & Remote Printing
🛠️ Maintenance & Support
🔒 Optional Authentication
|
Plus: Configurable slicer (Bambu Studio / OrcaSlicer) • Customizable themes (style, background, accent) • Mobile responsive • Keyboard shortcuts • Multi-language (EN/DE/JA/IT) • Auto updates • Database backup/restore • System info dashboard
🎬 Demo
Click to watch the demo on YouTube
📸 Screenshots
Click to expand screenshots
Real-time printer monitoring with AMS status
Print archive with 3D preview and project assignment
Re-print with AMS filament mapping preview
Built-in timelapse editor with trim, speed, and music
Group related prints into projects
Project detail view with assigned archives
Project timeline and print history
Print scheduling and queue management
Schedule prints for specific date and time
Customizable statistics dashboard
Maintenance tracking per printer
Configure maintenance types and intervals
Pressure advance (K-factor) profiles
Edit K-factor profile settings
General configuration and integrations
Smart plug control and energy monitoring
Multi-provider notification system
API keys and webhook endpoints
Virtual printer appears in Bambu Studio/Orca Slicer
🚀 Quick Start
Requirements
- Python 3.10+ (3.11/3.12 recommended)
- Bambu Lab printer with Developer Mode enabled (see below)
- "Store sent files on external storage" enabled in Bambu Studio/OrcaSlicer
- Same local network as printer
Installation
Docker (Recommended)
Option A: Pre-built image (fastest)
mkdir bambuddy && cd bambuddy
curl -O https://raw.githubusercontent.com/maziggy/bambuddy/main/docker-compose.yml
docker compose up -d
Option B: Build from source
git clone https://github.com/maziggy/bambuddy.git
cd bambuddy
docker compose up -d --build
Open http://localhost:8000 in your browser.
Multi-architecture support: Pre-built images are available for
linux/amd64andlinux/arm64(Raspberry Pi 4/5).
macOS/Windows users: Docker Desktop doesn't support
network_mode: host. Edit docker-compose.yml: comment outnetwork_mode: hostand uncomment theports:section. Printer discovery won't work - add printers manually by IP.
Linux users: If you get "permission denied" errors, either prefix commands with
sudo(e.g.,sudo docker compose up -d) or add your user to the docker group.
Docker Configuration & Commands
Environment Variables:
| Variable | Default | Description |
|---|---|---|
TZ |
UTC |
Your timezone (e.g., America/New_York, Europe/Berlin) |
PORT |
8000 |
Port BamBuddy runs on (with host networking mode) |
DEBUG |
false |
Enable debug logging |
LOG_LEVEL |
INFO |
Log level: DEBUG, INFO, WARNING, ERROR |
Data Persistence:
| Volume | Purpose |
|---|---|
bambuddy.db |
SQLite database with all your print data (not used with PostgreSQL) |
archive/ |
Archived 3MF files and thumbnails |
logs/ |
Application logs |
Updating:
# Pre-built image: just pull the latest
docker compose pull && docker compose up -d
# From source: rebuild after pulling changes
cd bambuddy && git pull && docker compose up -d --build
Daily Beta Builds:
Beta builds with the latest fixes are pushed regularly to the same beta version tag:
# Pull the current beta
docker pull ghcr.io/maziggy/bambuddy:0.2.2b1
# or from Docker Hub
docker pull maziggy/bambuddy:0.2.2b1
Use Watchtower to automatically update when new daily builds are pushed.
Note: Beta builds use version tags like
0.2.2b1— they are never tagged aslatest. Your stable installation won't auto-update to a beta unless you explicitly pull a beta tag.
Useful Commands:
# View logs
docker compose logs -f
# Stop/Start
docker compose down
docker compose up -d
# Shell access
docker compose exec bambuddy /bin/bash
Custom Port:
ports:
- "3000:8000" # Access on port 3000
Reverse Proxy (Nginx):
server {
listen 443 ssl http2;
server_name bambuddy.yourdomain.com;
ssl_certificate /path/to/cert.pem;
ssl_certificate_key /path/to/key.pem;
location / {
proxy_pass http://localhost:8000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_read_timeout 86400;
}
}
Note: WebSocket support is required for real-time printer updates.
Network Mode Host (required for printer discovery and camera streaming):
services:
bambuddy:
build: .
network_mode: host
Note: Docker's default bridge networking cannot receive SSDP multicast packets for automatic printer discovery. When using
network_mode: host, Bambuddy auto-detects your network subnet and can discover printers via subnet scanning in the Add Printer dialog.
Manual Installation (Linux/macOS)
# Clone and setup
git clone https://github.com/maziggy/bambuddy.git
cd bambuddy
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
# Run
uvicorn backend.app.main:app --host 0.0.0.0 --port 8000
Open http://localhost:8000 and add your printer!
Need detailed instructions? See the Installation Guide
Enabling Developer Mode
Developer Mode allows third-party software like Bambuddy to control your printer over the local network.
- On printer: Settings → Network → LAN Only Mode → Enable
- Enable Developer Mode (appears after LAN Only Mode is enabled)
- Note the Access Code displayed
- Find IP address in network settings
- Find Serial Number in device info
Note: Developer Mode disables cloud features but provides full local control. Standard LAN Mode (without Developer Mode) only allows read-only monitoring.
Slicer Settings
In Bambu Studio or OrcaSlicer, enable "Store sent files on external storage" so that print files (3MF) are saved to the printer's SD card. Bambuddy needs these files to extract thumbnails and 3D model previews.
- Open Bambu Studio or OrcaSlicer
- Go to the Device tab for your printer
- In Print Options, enable Store Sent Files on External Storage
📚 Documentation
Full documentation available at wiki.bambuddy.cool:
- Installation — All installation methods
- Getting Started — First printer setup
- Features — Detailed feature guides
- Troubleshooting — Common issues & solutions
- API Reference — REST API documentation
🖨️ Supported Printers
| Series | Models |
|---|---|
| X1 | X1, X1 Carbon, X1E |
| X2 | X2D |
| H2 | H2D, H2D Pro, H2C, H2S |
| P1 | P1P, P1S |
| P2 | P2S |
| A1 | A1, A1 Mini |
🛠️ Tech Stack
| Component | Technology |
|---|---|
| Backend | Python, FastAPI, SQLAlchemy |
| Frontend | React, TypeScript, Tailwind CSS |
| Database | SQLite (default) or PostgreSQL |
| 3D Viewer | Three.js |
| Communication | MQTT (TLS), FTPS |
🤝 Contributing
Contributions welcome! I'm especially looking for help with documentation and our new Discourse forum — see Contributors Wanted above. Other ways to help:
- 📝 Document — Improve the wiki and guides (urgently needed!)
- ⚙️ Admin Discourse — Help configure and tune the forum (urgently needed!)
- 💬 Moderate — Welcome newcomers and keep forum discussions healthy (urgently needed!)
- Test — Report issues with your printer model
- Translate — Add new languages
- Code — Submit PRs for bugs or features
Not sure where to start? Reach out on Discord, post on the forum, or email martin@bambuddy.cool — I'll help you find something that fits.
# Development setup
git clone https://github.com/maziggy/bambuddy.git
cd bambuddy
# Backend
python3 -m venv venv && source venv/bin/activate
pip install -r requirements.txt
DEBUG=true uvicorn backend.app.main:app --reload
# Frontend (separate terminal)
cd frontend && npm install && npm run dev
See CONTRIBUTING.md for guidelines.
📄 License
AGPL-3.0 License — see LICENSE for details.
🙏 Acknowledgments
- SpoolEase by yanshay — early inspiration for NFC-based spool tracking and AMS inventory concepts
- Bambu Lab for amazing printers
- The reverse engineering community for protocol documentation
- All testers and contributors
If you like Bambuddy and want to support it, you can buy Martin a coffee.
Made with ❤️ for the 3D printing community
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