Carbon rods use plain bearings — lubricating them degrades print quality.
Removed the lubrication task from defaults; only "Clean Carbon Rods"
remains. Existing entries are auto-removed on next startup via
ensure_default_types(). Updated wiki link mapping and tests.
P2S uses hardened steel rods, not carbon fiber. Move P2S from
carbon rod classification to new steel_rod category with its own
"Lubricate Steel Rods" / "Clean Steel Rods" maintenance tasks.
All backend timestamps used datetime.now() (server local time) or the
deprecated datetime.utcnow(). The frontend's parseUTCDate() assumes
timestamps without timezone indicators are UTC and appends 'Z', so
stored timestamps were off by the timezone offset when the container's
timezone wasn't UTC.
Backend: replaced datetime.now() and datetime.utcnow() with
datetime.now(timezone.utc) across 16 files (~80 call sites) for all
database fields and DB comparisons. Cosmetic timestamps (filenames,
user-facing local time formatting) intentionally left as local time.
Frontend: replaced 13 new Date(backendTimestamp) calls with
parseUTCDate() across 8 files to correctly interpret UTC timestamps.
H2/A1 series have linear rails, not carbon rods. X1/P1/P2S have carbon
rods, not linear rails. Split rod-specific maintenance into model-aware
pairs: "Lubricate/Clean Carbon Rods" for X1/P1/P2S and "Lubricate/Clean
Linear Rails" for A1/H2. Added rod type classification to printer_models
and startup cleanup for stale/duplicate system maintenance types.
New feature: Publish BamBuddy events to external MQTT brokers for integration
with Home Assistant, Node-RED, and other automation platforms.
Backend changes:
- New MQTTRelayService (backend/app/services/mqtt_relay.py) with paho-mqtt
- MQTT settings added to AppSettings schema (enabled, broker, port, auth, TLS)
- New /settings/mqtt/status endpoint for connection status
- Event hooks in main.py, print_queue.py, print_scheduler.py, maintenance.py, smart_plugs.py
- PrinterInfo class and get_printer() method added to PrinterManager
- MQTT reconfiguration added to backup/restore flow
- Printer status throttled to 1 update/sec to avoid flooding
Frontend changes:
- New "Network" tab in Settings (between Filament and API Keys)
- FTP Retry settings moved from General to Network tab
- MQTT configuration card with broker, port, TLS toggle, auth fields
- Port auto-populates when TLS toggled (1883 ↔ 8883)
- Connection status indicator (green/red dot) in tab and card header
- Real-time status polling when on Network tab
Published topics:
- bambuddy/status - Online/offline
- bambuddy/printers/{serial}/status - Printer state (throttled)
- bambuddy/printers/{serial}/print/* - Print lifecycle
- bambuddy/printers/{serial}/ams/changed - AMS changes
- bambuddy/queue/* - Queue events
- bambuddy/maintenance/* - Maintenance alerts
- bambuddy/smart_plugs/* - Plug state/energy
- bambuddy/archive/* - Archive events
Tests:
- Added MQTT settings and status endpoint tests
Closes#78
Features:
- Add wiki_url field to MaintenanceType for custom type documentation links
- Add printer_model to MaintenanceStatus for model-specific URL mapping
- Display external link icon next to maintenance item names
- Map system maintenance types to Bambu Lab wiki pages by printer model:
- Lubricate Linear Rails, Clean Nozzle/Hotend, Check Belt Tension
- Clean Carbon Rods (X1/P1 only), Clean Build Plate, Check PTFE Tube
- HEPA/Carbon Filter, Left Nozzle Rail (H2 series)
- Add Documentation Link input to custom type create/edit forms
Bug fix:
- Fix 500 error when assigning maintenance type to printer (lazy loading)
Database:
- Add migration for wiki_url column on maintenance_types table
prints (not just completed), matching get_printer_total_hours behavior
- Add option to keep or delete archives when deleting a printer
- Custom maintenance types no longer auto-assign to all printers
- Add UI to manually assign/remove custom maintenance types per printer
- Add backend endpoints for assigning types to printers and removing items
- Exclude static/assets from large file pre-commit check
maziggy