Dual-nozzle H2D/H2D Pro: filament matching now respects nozzle assignments
from the 3MF file. Each AMS unit feeds a specific nozzle (L/R), and the
scheduler/frontend constrain matching to only trays on the correct nozzle.
Falls back to unfiltered matching when no trays exist on the target nozzle.
L/R badges shown in the filament mapping UI. Translated in en/de/ja/it.
Fix AMS slot config overwritten on startup: on_ams_change unconditionally
unlinked BL spool assignments on every MQTT pushall, then re-assigned them
sending ams_filament_setting without setting_id — clearing the printer's
filament preset. Now compares spool RFID identifiers before unlinking.
Fix BL spool detection false positives: removed tray_info_idx from detection
logic in both backend is_bambu_lab_spool() and frontend isBambuLabSpool().
Third-party spools using Bambu generic presets had GF-prefixed tray_info_idx
values, causing misidentification. Now uses only tray_uuid and tag_uid.
SQLite WAL mode with 5s busy timeout reduces "database is locked" errors.
Implements retry mechanism to handle intermittent network errors when
fetching spools cache for AMS sync operations.
Changes:
- Add retry logic to get_spools() with 3 attempts and 500ms delay
- Configure httpx client with connection pool limits to prevent stale
connection reuse (max_keepalive_connections=5, keepalive_expiry=30s)
- Recreate client on connection errors (ReadError, RemoteProtocolError)
- Abort sync operations if cache fetch fails after all retries
- Update on_ams_change, sync_single_printer, and sync_all_printers to
handle cache fetch failures gracefully
This addresses ReadError(ClosedResourceError()) failures that occurred
intermittently when Spoolman closed idle connections or connection
pooling reused stale connections.
Testing:
- Added 4 new unit tests for retry behavior
- All 1018 tests passing
- Add cached_spools parameter to find_spool_by_tag, find_spools_by_location_prefix, sync_ams_tray, and clear_location_for_removed_spools
- Fetch spools once before loops in on_ams_change, sync_single_printer, and sync_all_printers endpoints
- Cache newly created spools during sync to avoid duplicate API calls
- Add 5 unit tests for caching functionality (all passing)
- Reduce redundant API calls when syncing multiple AMS trays
- Improve sync performance for users with large spool databases
- Maintain backward compatibility with optional cached_spools parameters
Implement accurate per-filament usage tracking for Spoolman integration,
similar to OpenSpoolman v0.3.0. This replaces the previous single-spool
reporting with multi-material aware tracking.
Features:
- Parse G-code from 3MF files at print start to build per-layer,
per-filament cumulative extrusion maps
- Store tracking data in new `active_print_spoolman` database table
(survives server restarts for long prints)
- Report accurate partial usage when prints fail/cancel based on
actual layer progress and G-code data
- Add "Disable AMS Weight Sync" setting to prevent AMS percentage-based
weight estimates from overwriting Spoolman's granular tracking
- Add "Report Partial Usage for Failed Prints" toggle (only shown when
weight sync is disabled)
- Use Spoolman's filament density instead of defaults for mm-to-grams
conversion
- Prefer tray_uuid over tag_uid for spool identification
Transparent spools (like Natural PLA Support) report color "00000000"
which was being skipped as invalid. Now these spools are synced with
a light cream color (F5E6D3) that represents how natural PLA looks.
Fixes#190
The 'tag' extra field is required in Spoolman for storing RFID/UUID
identifiers that link Bambu Lab spools to Spoolman entries. Previously,
users had to manually create this field in Spoolman, causing sync
failures for fresh installations.
Added ensure_tag_extra_field() method to SpoolmanClient that:
- Checks if the 'tag' field exists via GET /api/v1/field/spool/tag
- Creates it via POST if missing
The method is called automatically:
- On app startup when auto-connecting to Spoolman
- When user clicks "Connect" in Spoolman settings
The spool detection only checked tray_uuid and tag_uid, but some Bambu Lab
spools have RFID read issues causing these to be missing while still having
valid tray_info_idx (Bambu filament preset ID like "GFA00").
Backend changes (backend/app/services/spoolman.py):
- Add tray_info_idx to AMSTray dataclass
- Parse tray_info_idx from raw MQTT data in parse_ams_tray()
- Check tray_info_idx first in is_bambu_lab_spool() - most reliable indicator
- Bambu Lab presets start with "GF" (GFA00, GFB00, GFL00, etc.)
- Fall back to tray_uuid then tag_uid for unique spool identification
- Add warning when Bambu spool detected but no unique ID for Spoolman
Backend changes (backend/app/api/routes/spoolman.py):
- Update /sync/{printer_id} and /sync-all to pass tray_info_idx
- Guard against empty spool_tag when adding to tracking set
Frontend changes (frontend/src/pages/PrintersPage.tsx):
- Add isBambuLabSpool() helper with same detection logic as backend
- Update all 4 vendor detection locations in AMS cards to use new helper
Detection priority (same on frontend and backend):
1. tray_info_idx starts with "GF" (Bambu preset ID)
2. tray_uuid is valid 32-char hex (non-zero)
3. tag_uid is valid 16-char hex (non-zero)
The spool detection logic only checked tray_uuid (32 hex chars) to identify
Bambu Lab spools. Some spools have RFID read issues causing missing or
invalid tray_uuid while still having valid tag_uid (16 hex chars).
Changes:
- Update is_bambu_lab_spool() to accept tag_uid as fallback parameter
- Prefer tray_uuid for identification, fall back to tag_uid if invalid
- Use whichever valid identifier for Spoolman tag storage and matching
- Update both /sync/{printer_id} and /sync-all endpoints
This fixes spools being incorrectly marked as "Non-Bambu Lab spool (no RFID
tag)" when they have valid tag_uid but missing/zero tray_uuid.
Previously, when syncing to Spoolman, the location field was set to the
printer/AMS slot but was never cleared when the spool was removed from
the AMS.
Now during sync, the system tracks which tray UUIDs are currently in the
AMS and clears the location for any spools that were previously at this
printer but are no longer present.
Changes:
- Add clear_location parameter to update_spool() method
- Add find_spools_by_location_prefix() to find spools at a printer
- Add clear_location_for_removed_spools() to clear stale locations
- Update sync_printer_ams and sync_all_printers endpoints to clear
locations for removed spools after syncing
Features:
- Resizable printer cards (S/M/L/XL) with toolbar controls on Printers page
- Queue Only mode for staging prints without automatic scheduling
- "Queue Only" option in add/edit queue modals
- Purple "Staged" badge and Play button to release to queue
- manual_start field in database with migration
Fixes:
- Improved camera stream stuck detection with automatic reconnection
Tests:
- Added 16 integration tests for print queue API endpoints
- Link to Spoolman: Manually link existing Spoolman spools to AMS trays
- Hover over AMS slot to see "Link to Spoolman" button
- Select from list of unlinked Spoolman spools
- Automatically sets extra.tag field in Spoolman
- Spool UUID display: View and copy Bambu Lab spool UUID in AMS hover card
- Shows first 8 chars with copy button (full UUID to clipboard)
- Fallback copy method for HTTP contexts
- Sync feedback: Shows synced count and skipped spools with reasons
- Expandable list when more than 5 skipped
- Color swatches for identification
- Fixed Spoolman 400 Bad Request: extra field values must be valid JSON
- Updated documentation (wiki, website)
maziggy