Issue #162

README.md

@@ -505,10 +505,6 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.
 
 ---
 
-If you like Bambuddy and want to support it, you can <a href="https://ko-fi.com/maziggy" target=_blank>buy Martin a coffee</a>.
-
----
-
 ## 📄 License
 
 MIT License — see [LICENSE](LICENSE) for details.
@@ -523,6 +519,10 @@ MIT License — see [LICENSE](LICENSE) for details.
 
 ---
 
+If you like Bambuddy and want to support it, you can <a href="https://ko-fi.com/maziggy" target=_blank>buy Martin a coffee</a>.
+
+---
+
 <p align="center">
   Made with ❤️ for the 3D printing community
   <br><br>

backend/app/api/routes/archives.py

@@ -78,6 +78,7 @@ def archive_to_response(
         "nozzle_diameter": archive.nozzle_diameter,
         "bed_temperature": archive.bed_temperature,
         "nozzle_temperature": archive.nozzle_temperature,
+        "sliced_for_model": archive.sliced_for_model,
         "status": archive.status,
         "started_at": archive.started_at,
         "completed_at": archive.completed_at,

backend/app/api/routes/print_queue.py

@@ -42,6 +42,7 @@ def _enrich_response(item: PrintQueueItem) -> PrintQueueItemResponse:
     item_dict = {
         "id": item.id,
         "printer_id": item.printer_id,
+        "target_model": item.target_model,
         "archive_id": item.archive_id,
         "library_file_id": item.library_file_id,
         "position": item.position,
@@ -124,12 +125,24 @@ async def add_to_queue(
     if not data.archive_id and not data.library_file_id:
         raise HTTPException(400, "Either archive_id or library_file_id must be provided")
 
+    # Cannot specify both printer_id and target_model
+    if data.printer_id and data.target_model:
+        raise HTTPException(400, "Cannot specify both printer_id and target_model")
+
     # Validate printer exists (if assigned)
     if data.printer_id is not None:
         result = await db.execute(select(Printer).where(Printer.id == data.printer_id))
         if not result.scalar_one_or_none():
             raise HTTPException(400, "Printer not found")
 
+    # Validate target_model has active printers
+    if data.target_model:
+        result = await db.execute(
+            select(Printer).where(Printer.model == data.target_model).where(Printer.is_active == True)  # noqa: E712
+        )
+        if not result.scalars().first():
+            raise HTTPException(400, f"No active printers for model: {data.target_model}")
+
     # Validate archive exists (if provided)
     if data.archive_id:
         result = await db.execute(select(PrintArchive).where(PrintArchive.id == data.archive_id))
@@ -142,7 +155,7 @@ async def add_to_queue(
         if not result.scalar_one_or_none():
             raise HTTPException(400, "Library file not found")
 
-    # Get next position for this printer (or for unassigned items)
+    # Get next position for this printer (or for unassigned/model-based items)
     if data.printer_id is not None:
         result = await db.execute(
             select(func.max(PrintQueueItem.position))
@@ -150,7 +163,7 @@ async def add_to_queue(
             .where(PrintQueueItem.status == "pending")
         )
     else:
-        # For unassigned items, get max position across all unassigned
+        # For unassigned/model-based items, get max position across all unassigned
         result = await db.execute(
             select(func.max(PrintQueueItem.position))
             .where(PrintQueueItem.printer_id.is_(None))
@@ -160,6 +173,7 @@ async def add_to_queue(
 
     item = PrintQueueItem(
         printer_id=data.printer_id,
+        target_model=data.target_model,
         archive_id=data.archive_id,
         library_file_id=data.library_file_id,
         scheduled_time=data.scheduled_time,
@@ -185,7 +199,8 @@ async def add_to_queue(
     await db.refresh(item, ["archive", "printer", "library_file"])
 
     source_name = f"archive {data.archive_id}" if data.archive_id else f"library file {data.library_file_id}"
-    logger.info(f"Added {source_name} to queue for printer {data.printer_id or 'unassigned'}")
+    target_desc = data.printer_id or (f"model {data.target_model}" if data.target_model else "unassigned")
+    logger.info(f"Added {source_name} to queue for {target_desc}")
 
     # MQTT relay - publish queue job added
     try:
@@ -287,12 +302,26 @@ async def update_queue_item(
 
     update_data = data.model_dump(exclude_unset=True)
 
+    # Cannot specify both printer_id and target_model
+    new_printer_id = update_data.get("printer_id", item.printer_id)
+    new_target_model = update_data.get("target_model", item.target_model)
+    if new_printer_id and new_target_model:
+        raise HTTPException(400, "Cannot specify both printer_id and target_model")
+
     # Validate new printer_id if being changed (and not None)
     if "printer_id" in update_data and update_data["printer_id"] is not None:
         result = await db.execute(select(Printer).where(Printer.id == update_data["printer_id"]))
         if not result.scalar_one_or_none():
             raise HTTPException(400, "Printer not found")
 
+    # Validate target_model has active printers
+    if "target_model" in update_data and update_data["target_model"]:
+        result = await db.execute(
+            select(Printer).where(Printer.model == update_data["target_model"]).where(Printer.is_active == True)  # noqa: E712
+        )
+        if not result.scalars().first():
+            raise HTTPException(400, f"No active printers for model: {update_data['target_model']}")
+
     # Serialize ams_mapping to JSON for TEXT column storage
     if "ams_mapping" in update_data:
         update_data["ams_mapping"] = json.dumps(update_data["ams_mapping"]) if update_data["ams_mapping"] else None

backend/app/core/database.py

@@ -760,6 +760,18 @@ async def run_migrations(conn):
     except Exception:
         pass
 
+    # Migration: Add sliced_for_model column to print_archives for printer model from 3MF
+    try:
+        await conn.execute(text("ALTER TABLE print_archives ADD COLUMN sliced_for_model VARCHAR(50)"))
+    except Exception:
+        pass
+
+    # Migration: Add target_model column to print_queue for model-based assignment
+    try:
+        await conn.execute(text("ALTER TABLE print_queue ADD COLUMN target_model VARCHAR(50)"))
+    except Exception:
+        pass
+
 
 async def seed_notification_templates():
     """Seed default notification templates if they don't exist."""

backend/app/models/archive.py

@@ -35,6 +35,9 @@ class PrintArchive(Base):
     bed_temperature: Mapped[int | None] = mapped_column(Integer)
     nozzle_temperature: Mapped[int | None] = mapped_column(Integer)
 
+    # Printer model this file was sliced for (extracted from 3MF metadata)
+    sliced_for_model: Mapped[str | None] = mapped_column(String(50), nullable=True)
+
     # Print result
     status: Mapped[str] = mapped_column(String(20), default="completed")
     started_at: Mapped[datetime | None] = mapped_column(DateTime)

backend/app/models/print_queue.py

@@ -15,6 +15,9 @@ class PrintQueueItem(Base):
 
     # Links
     printer_id: Mapped[int | None] = mapped_column(ForeignKey("printers.id", ondelete="CASCADE"), nullable=True)
+    # Target printer model for model-based assignment (mutually exclusive with printer_id)
+    # When set, scheduler assigns to any idle printer of matching model
+    target_model: Mapped[str | None] = mapped_column(String(50), nullable=True)
     # Either archive_id OR library_file_id must be set (archive created at print start from library file)
     archive_id: Mapped[int | None] = mapped_column(ForeignKey("print_archives.id", ondelete="CASCADE"), nullable=True)
     library_file_id: Mapped[int | None] = mapped_column(

backend/app/schemas/archive.py

@@ -63,6 +63,8 @@ class ArchiveResponse(BaseModel):
     bed_temperature: int | None
     nozzle_temperature: int | None
 
+    sliced_for_model: str | None = None  # Printer model this file was sliced for
+
     status: str
     started_at: datetime | None
     completed_at: datetime | None

backend/app/schemas/print_queue.py

@@ -17,6 +17,7 @@ UTCDatetime = Annotated[datetime | None, PlainSerializer(serialize_utc_datetime)
 
 class PrintQueueItemCreate(BaseModel):
     printer_id: int | None = None  # None = unassigned, user assigns later
+    target_model: str | None = None  # Target printer model (mutually exclusive with printer_id)
     # Either archive_id OR library_file_id must be provided
     archive_id: int | None = None
     library_file_id: int | None = None
@@ -40,6 +41,7 @@ class PrintQueueItemCreate(BaseModel):
 
 class PrintQueueItemUpdate(BaseModel):
     printer_id: int | None = None
+    target_model: str | None = None  # Target printer model (mutually exclusive with printer_id)
     position: int | None = None
     scheduled_time: datetime | None = None
     require_previous_success: bool | None = None
@@ -59,6 +61,7 @@ class PrintQueueItemUpdate(BaseModel):
 class PrintQueueItemResponse(BaseModel):
     id: int
     printer_id: int | None  # None = unassigned
+    target_model: str | None = None  # Target printer model for model-based assignment
     archive_id: int | None  # None if library_file_id is set (archive created at print start)
     library_file_id: int | None  # For queue items from library files
     position: int

backend/app/services/archive.py

@@ -67,6 +67,19 @@ class ThreeMFParser:
                 content = zf.read("Metadata/slice_info.config").decode()
                 root = ET.fromstring(content)
 
+                # Extract printer_model_id from plate metadata
+                # Format: <plate><metadata key="printer_model_id" value="C11" /></plate>
+                for meta in root.findall(".//metadata"):
+                    key = meta.get("key")
+                    value = meta.get("value")
+                    if key == "printer_model_id" and value:
+                        from backend.app.utils.printer_models import normalize_printer_model_id
+
+                        normalized = normalize_printer_model_id(value)
+                        if normalized:
+                            self.metadata["sliced_for_model"] = normalized
+                        break
+
                 # Find the plate element (single-plate exports only have one plate)
                 plate = root.find(".//plate")
 
@@ -156,7 +169,7 @@ class ThreeMFParser:
             pass
 
     def _parse_gcode_header(self, zf: zipfile.ZipFile):
-        """Parse G-code file header for total layer count."""
+        """Parse G-code file header for total layer count and printer model."""
         import re
 
         try:
@@ -165,15 +178,25 @@ class ThreeMFParser:
             if not gcode_files:
                 return
 
-            # Read first 2KB of G-code (header contains the layer count)
+            # Read first 4KB of G-code (header contains metadata)
             gcode_path = gcode_files[0]
             with zf.open(gcode_path) as f:
-                header = f.read(2048).decode("utf-8", errors="ignore")
+                header = f.read(4096).decode("utf-8", errors="ignore")
 
             # Look for "; total layer number: XX" pattern
             match = re.search(r";\s*total\s+layer\s+number[:\s]+(\d+)", header, re.IGNORECASE)
             if match:
                 self.metadata["total_layers"] = int(match.group(1))
+
+            # Look for printer_model in gcode header (fallback if not found in slice_info)
+            # Format: "; printer_model = Bambu Lab X1 Carbon" or "; printer_model = X1C"
+            if "sliced_for_model" not in self.metadata:
+                match = re.search(r";\s*printer_model\s*=\s*(.+)", header, re.IGNORECASE)
+                if match:
+                    from backend.app.utils.printer_models import normalize_printer_model
+
+                    raw_model = match.group(1).strip()
+                    self.metadata["sliced_for_model"] = normalize_printer_model(raw_model)
         except Exception:
             pass
 
@@ -256,6 +279,12 @@ class ThreeMFParser:
                     elif isinstance(val, (int, float, str)):
                         self.metadata["nozzle_temperature"] = int(float(val))
                     break
+
+            # Printer model (extract and normalize)
+            if "printer_model" in data:
+                from backend.app.utils.printer_models import normalize_printer_model
+
+                self.metadata["sliced_for_model"] = normalize_printer_model(data["printer_model"])
         except Exception:
             pass
 
@@ -877,6 +906,7 @@ class ArchiveService:
             nozzle_diameter=metadata.get("nozzle_diameter"),
             bed_temperature=metadata.get("bed_temperature"),
             nozzle_temperature=metadata.get("nozzle_temperature"),
+            sliced_for_model=metadata.get("sliced_for_model"),
             makerworld_url=metadata.get("makerworld_url"),
             designer=metadata.get("designer"),
             status=status,

backend/app/services/print_scheduler.py

@@ -62,13 +62,10 @@ class PrintScheduler:
             if not items:
                 return
 
-            # Group by printer - only process first item per printer
-            processed_printers = set()
+            # Track busy printers to avoid assigning multiple items to same printer
+            busy_printers: set[int] = set()
 
             for item in items:
-                if item.printer_id in processed_printers:
-                    continue
-
                 # Check scheduled time first (scheduled_time is stored in UTC from ISO string)
                 if item.scheduled_time and item.scheduled_time > datetime.utcnow():
                     continue
@@ -77,46 +74,91 @@ class PrintScheduler:
                 if item.manual_start:
                     continue
 
-                # Check if printer is idle
-                printer_idle = self._is_printer_idle(item.printer_id)
-                printer_connected = printer_manager.is_connected(item.printer_id)
-
-                # If printer not connected, try to power on via smart plug
-                if not printer_connected:
-                    plug = await self._get_smart_plug(db, item.printer_id)
-                    if plug and plug.auto_on and plug.enabled:
-                        logger.info(f"Printer {item.printer_id} offline, attempting to power on via smart plug")
-                        powered_on = await self._power_on_and_wait(plug, item.printer_id, db)
-                        if powered_on:
-                            printer_connected = True
-                            printer_idle = self._is_printer_idle(item.printer_id)
-                        else:
-                            logger.warning(f"Could not power on printer {item.printer_id} via smart plug")
-                            processed_printers.add(item.printer_id)
-                            continue
-                    else:
-                        # No plug or auto_on disabled
-                        processed_printers.add(item.printer_id)
+                if item.printer_id:
+                    # Specific printer assignment (existing behavior)
+                    if item.printer_id in busy_printers:
                         continue
 
-                # Check if printer is idle (busy with another print)
-                if not printer_idle:
-                    processed_printers.add(item.printer_id)
-                    continue
+                    # Check if printer is idle
+                    printer_idle = self._is_printer_idle(item.printer_id)
+                    printer_connected = printer_manager.is_connected(item.printer_id)
+
+                    # If printer not connected, try to power on via smart plug
+                    if not printer_connected:
+                        plug = await self._get_smart_plug(db, item.printer_id)
+                        if plug and plug.auto_on and plug.enabled:
+                            logger.info(f"Printer {item.printer_id} offline, attempting to power on via smart plug")
+                            powered_on = await self._power_on_and_wait(plug, item.printer_id, db)
+                            if powered_on:
+                                printer_connected = True
+                                printer_idle = self._is_printer_idle(item.printer_id)
+                            else:
+                                logger.warning(f"Could not power on printer {item.printer_id} via smart plug")
+                                busy_printers.add(item.printer_id)
+                                continue
+                        else:
+                            # No plug or auto_on disabled
+                            busy_printers.add(item.printer_id)
+                            continue
 
-                # Check condition (previous print success)
-                if item.require_previous_success:
-                    if not await self._check_previous_success(db, item):
-                        item.status = "skipped"
-                        item.error_message = "Previous print failed or was aborted"
-                        item.completed_at = datetime.now()
-                        await db.commit()
-                        logger.info(f"Skipped queue item {item.id} - previous print failed")
+                    # Check if printer is idle (busy with another print)
+                    if not printer_idle:
+                        busy_printers.add(item.printer_id)
                         continue
 
-                # Start the print
-                await self._start_print(db, item)
-                processed_printers.add(item.printer_id)
+                    # Check condition (previous print success)
+                    if item.require_previous_success:
+                        if not await self._check_previous_success(db, item):
+                            item.status = "skipped"
+                            item.error_message = "Previous print failed or was aborted"
+                            item.completed_at = datetime.now()
+                            await db.commit()
+                            logger.info(f"Skipped queue item {item.id} - previous print failed")
+                            continue
+
+                    # Start the print
+                    await self._start_print(db, item)
+                    busy_printers.add(item.printer_id)
+
+                elif item.target_model:
+                    # Model-based assignment - find any idle printer of matching model
+                    printer_id = await self._find_idle_printer_for_model(db, item.target_model, busy_printers)
+                    if printer_id:
+                        # Check condition (previous print success) before assigning
+                        if item.require_previous_success:
+                            if not await self._check_previous_success(db, item):
+                                item.status = "skipped"
+                                item.error_message = "Previous print failed or was aborted"
+                                item.completed_at = datetime.now()
+                                await db.commit()
+                                logger.info(f"Skipped queue item {item.id} - previous print failed")
+                                continue
+
+                        # Assign printer and start
+                        item.printer_id = printer_id
+                        logger.info(f"Model-based assignment: queue item {item.id} assigned to printer {printer_id}")
+                        await self._start_print(db, item)
+                        busy_printers.add(printer_id)
+
+    async def _find_idle_printer_for_model(self, db: AsyncSession, model: str, exclude_ids: set[int]) -> int | None:
+        """Find an idle, connected printer matching the model.
+
+        Args:
+            db: Database session
+            model: Printer model to match (e.g., "X1C", "P1S")
+            exclude_ids: Printer IDs to exclude (already busy)
+
+        Returns:
+            Printer ID if found, None otherwise
+        """
+        result = await db.execute(
+            select(Printer).where(Printer.model == model).where(Printer.is_active == True)  # noqa: E712
+        )
+        for printer in result.scalars().all():
+            if printer.id not in exclude_ids:
+                if self._is_printer_idle(printer.id) and printer_manager.is_connected(printer.id):
+                    return printer.id
+        return None
 
     def _is_printer_idle(self, printer_id: int) -> bool:
         """Check if a printer is connected and idle."""

backend/app/utils/printer_models.py

@@ -0,0 +1,86 @@
+"""Printer model normalization utilities.
+
+Converts 3MF printer model names (e.g., "Bambu Lab X1 Carbon") to
+normalized short names (e.g., "X1C") that match database storage.
+"""
+
+# Map from 3MF printer_model strings to normalized short names
+PRINTER_MODEL_MAP = {
+    "Bambu Lab X1 Carbon": "X1C",
+    "Bambu Lab X1": "X1",
+    "Bambu Lab X1E": "X1E",
+    "Bambu Lab P1S": "P1S",
+    "Bambu Lab P1P": "P1P",
+    "Bambu Lab P2S": "P2S",
+    "Bambu Lab A1": "A1",
+    "Bambu Lab A1 Mini": "A1 Mini",
+    "Bambu Lab A1 mini": "A1 Mini",
+    "Bambu Lab H2D": "H2D",
+    "Bambu Lab H2D Pro": "H2D Pro",
+}
+
+# Map from printer_model_id (internal codes in slice_info.config) to short names
+# These are the codes Bambu Studio uses internally
+PRINTER_MODEL_ID_MAP = {
+    # X1 series
+    "C11": "X1C",
+    "C12": "X1",
+    "C13": "X1E",
+    # P1 series
+    "P1P": "P1P",
+    "P1S": "P1S",
+    # P2 series
+    "P2S": "P2S",
+    # A1 series
+    "A11": "A1",
+    "A12": "A1 Mini",
+    "N1": "A1",
+    "N2S": "A1 Mini",
+    "A04": "A1 Mini",
+    # H2D series (Office/H series)
+    "O1D": "H2D",
+    "O2D": "H2D Pro",
+}
+
+
+def normalize_printer_model_id(model_id: str | None) -> str | None:
+    """Convert printer_model_id (internal code) to normalized short name.
+
+    Args:
+        model_id: The printer_model_id from slice_info.config (e.g., "C11", "O1D")
+
+    Returns:
+        Normalized short name (e.g., "X1C", "H2D") or the original ID if unknown.
+    """
+    if not model_id:
+        return None
+
+    # Check known mappings
+    if model_id in PRINTER_MODEL_ID_MAP:
+        return PRINTER_MODEL_ID_MAP[model_id]
+
+    # Return original if unknown (might already be a short name)
+    return model_id
+
+
+def normalize_printer_model(raw_model: str | None) -> str | None:
+    """Convert 3MF printer_model to normalized short name.
+
+    Args:
+        raw_model: The printer_model string from 3MF metadata
+            (e.g., "Bambu Lab X1 Carbon")
+
+    Returns:
+        Normalized short name (e.g., "X1C") or None if input is empty.
+        Unknown models have "Bambu Lab " prefix stripped.
+    """
+    if not raw_model:
+        return None
+
+    # Check known mappings first
+    if raw_model in PRINTER_MODEL_MAP:
+        return PRINTER_MODEL_MAP[raw_model]
+
+    # Strip "Bambu Lab " prefix for unknown models
+    stripped = raw_model.replace("Bambu Lab ", "").strip()
+    return stripped or None

frontend/src/api/client.ts

@@ -300,6 +300,7 @@ export interface Archive {
   nozzle_diameter: number | null;
   bed_temperature: number | null;
   nozzle_temperature: number | null;
+  sliced_for_model: string | null;  // Printer model this file was sliced for
   status: string;
   started_at: string | null;
   completed_at: string | null;
@@ -1000,6 +1001,7 @@ export interface DiscoveredTasmotaDevice {
 export interface PrintQueueItem {
   id: number;
   printer_id: number | null;  // null = unassigned
+  target_model: string | null;  // Target printer model for model-based assignment
   // Either archive_id OR library_file_id must be set (archive created at print start)
   archive_id: number | null;
   library_file_id: number | null;
@@ -1032,6 +1034,7 @@ export interface PrintQueueItem {
 
 export interface PrintQueueItemCreate {
   printer_id?: number | null;  // null = unassigned
+  target_model?: string | null;  // Target printer model (mutually exclusive with printer_id)
   // Either archive_id OR library_file_id must be provided
   archive_id?: number | null;
   library_file_id?: number | null;
@@ -1052,6 +1055,7 @@ export interface PrintQueueItemCreate {
 
 export interface PrintQueueItemUpdate {
   printer_id?: number | null;  // null = unassign
+  target_model?: string | null;  // Target printer model (mutually exclusive with printer_id)
   position?: number;
   scheduled_time?: string | null;
   require_previous_success?: boolean;

frontend/src/components/PrintModal/PrinterSelector.tsx

@@ -1,4 +1,4 @@
-import { useState } from 'react';
+import { useState, useMemo } from 'react';
 import { useQueryClient } from '@tanstack/react-query';
 import {
   Printer as PrinterIcon,
@@ -9,6 +9,7 @@ import {
   Circle,
   RefreshCw,
   Wand2,
+  Users,
 } from 'lucide-react';
 import { api } from '../../api/client';
 import { getColorName } from '../../utils/colors';
@@ -16,7 +17,7 @@ import {
   normalizeColorForCompare,
   colorsAreSimilar,
 } from '../../utils/amsHelpers';
-import type { PrinterSelectorProps } from './types';
+import type { PrinterSelectorProps, AssignmentMode } from './types';
 import type { PrinterMappingResult, PerPrinterConfig } from '../../hooks/useMultiPrinterFilamentMapping';
 import type { FilamentRequirement, LoadedFilament } from '../../hooks/useFilamentMapping';
 
@@ -29,6 +30,16 @@ interface PrinterSelectorWithMappingProps extends PrinterSelectorProps {
   onAutoConfigurePrinter?: (printerId: number) => void;
   /** Callback to update printer config */
   onUpdatePrinterConfig?: (printerId: number, config: Partial<PerPrinterConfig>) => void;
+  /** Current assignment mode */
+  assignmentMode?: AssignmentMode;
+  /** Handler for assignment mode change */
+  onAssignmentModeChange?: (mode: AssignmentMode) => void;
+  /** Selected target model (when assignmentMode is 'model') */
+  targetModel?: string | null;
+  /** Handler for target model change */
+  onTargetModelChange?: (model: string | null) => void;
+  /** Suggested model from sliced file (for pre-selection) */
+  slicedForModel?: string | null;
 }
 
 /**
@@ -212,9 +223,42 @@ export function PrinterSelector({
   filamentReqs,
   onAutoConfigurePrinter,
   onUpdatePrinterConfig,
+  assignmentMode = 'printer',
+  onAssignmentModeChange,
+  targetModel,
+  onTargetModelChange,
+  slicedForModel,
 }: PrinterSelectorWithMappingProps) {
+  // State for showing all printers vs only matching model
+  const [showAllPrinters, setShowAllPrinters] = useState(false);
+
   // Filter printers based on showInactive flag
-  const displayPrinters = showInactive ? printers : printers.filter((p) => p.is_active);
+  const activePrinters = showInactive ? printers : printers.filter((p) => p.is_active);
+
+  // Filter by sliced model (only in printer mode, when slicedForModel is set)
+  const displayPrinters = useMemo(() => {
+    if (assignmentMode !== 'printer' || !slicedForModel || showAllPrinters) {
+      return activePrinters;
+    }
+    // Filter to only show printers matching the sliced model
+    const matching = activePrinters.filter((p) => p.model === slicedForModel);
+    // If no matching printers, show all
+    return matching.length > 0 ? matching : activePrinters;
+  }, [activePrinters, assignmentMode, slicedForModel, showAllPrinters]);
+
+  // Check if there are hidden printers due to model filtering
+  const hiddenPrinterCount = activePrinters.length - displayPrinters.length;
+
+  // Get unique models from available printers (for model-based assignment)
+  const uniqueModels = useMemo(() => {
+    const models = activePrinters
+      .map(p => p.model)
+      .filter((m): m is string => Boolean(m));
+    return [...new Set(models)].sort();
+  }, [activePrinters]);
+
+  // Check if model-based assignment is available (need callbacks and multiple printers of same model)
+  const modelAssignmentAvailable = onAssignmentModeChange && onTargetModelChange && uniqueModels.length > 0;
 
   const showMappingOptions = allowMultiple &&
     selectedPrinterIds.length > 1 &&
@@ -285,8 +329,56 @@ export function PrinterSelector({
 
   return (
     <div className="space-y-2 mb-6">
-      {/* Multi-select header */}
-      {allowMultiple && displayPrinters.length > 1 && (
+      {/* Assignment mode toggle (model vs specific printer) */}
+      {modelAssignmentAvailable && (
+        <div className="flex gap-2 mb-4">
+          <button
+            type="button"
+            onClick={() => {
+              onAssignmentModeChange!('printer');
+              onTargetModelChange!(null);
+            }}
+            className={`flex-1 flex items-center justify-center gap-2 px-3 py-2 rounded-lg border transition-colors ${
+              assignmentMode === 'printer'
+                ? 'border-bambu-green bg-bambu-green/10 text-white'
+                : 'border-bambu-dark-tertiary bg-bambu-dark text-bambu-gray hover:border-bambu-gray'
+            }`}
+          >
+            <PrinterIcon className="w-4 h-4" />
+            <span className="text-sm">Specific Printer</span>
+          </button>
+          <button
+            type="button"
+            onClick={() => {
+              onAssignmentModeChange!('model');
+              onMultiSelect([]);
+              // Pre-select the sliced-for model if available, otherwise first model
+              const defaultModel = slicedForModel && uniqueModels.includes(slicedForModel)
+                ? slicedForModel
+                : uniqueModels[0];
+              onTargetModelChange!(defaultModel);
+            }}
+            className={`flex-1 flex items-center justify-center gap-2 px-3 py-2 rounded-lg border transition-colors ${
+              assignmentMode === 'model'
+                ? 'border-bambu-green bg-bambu-green/10 text-white'
+                : 'border-bambu-dark-tertiary bg-bambu-dark text-bambu-gray hover:border-bambu-gray'
+            }`}
+          >
+            <Users className="w-4 h-4" />
+            <span className="text-sm">Any {slicedForModel || 'Model'}</span>
+          </button>
+        </div>
+      )}
+
+      {/* Model info (when in model mode) */}
+      {assignmentMode === 'model' && modelAssignmentAvailable && targetModel && (
+        <p className="text-xs text-bambu-gray mb-4">
+          Scheduler will assign to first available idle {targetModel} printer
+        </p>
+      )}
+
+      {/* Multi-select header (only in printer mode) */}
+      {assignmentMode === 'printer' && allowMultiple && displayPrinters.length > 1 && (
         <div className="flex items-center justify-between text-xs text-bambu-gray mb-2">
           <span>
             {selectedCount === 0
@@ -316,7 +408,8 @@ export function PrinterSelector({
         </div>
       )}
 
-      {displayPrinters.map((printer) => {
+      {/* Printer list (only in printer mode) */}
+      {assignmentMode === 'printer' && displayPrinters.map((printer) => {
         const selected = isSelected(printer.id);
         const mappingResult = getPrinterMappingResult(printer.id);
         const hasOverride = mappingResult && !mappingResult.config.useDefault;
@@ -430,13 +523,45 @@ export function PrinterSelector({
         );
       })}
 
-      {/* Warning when no printer selected */}
-      {selectedCount === 0 && (
+      {/* Show hidden printers toggle */}
+      {assignmentMode === 'printer' && hiddenPrinterCount > 0 && !showAllPrinters && (
+        <button
+          type="button"
+          onClick={() => setShowAllPrinters(true)}
+          className="text-xs text-bambu-gray hover:text-white transition-colors mt-2 flex items-center gap-1"
+        >
+          <AlertTriangle className="w-3 h-3 text-yellow-400" />
+          {hiddenPrinterCount} other printer{hiddenPrinterCount > 1 ? 's' : ''} hidden (different model) —
+          <span className="underline">show all</span>
+        </button>
+      )}
+
+      {/* Show matching only toggle */}
+      {assignmentMode === 'printer' && showAllPrinters && slicedForModel && (
+        <button
+          type="button"
+          onClick={() => setShowAllPrinters(false)}
+          className="text-xs text-bambu-gray hover:text-white transition-colors mt-2"
+        >
+          <span className="underline">Show only {slicedForModel} printers</span>
+        </button>
+      )}
+
+      {/* Warning when no printer selected (only in printer mode) */}
+      {assignmentMode === 'printer' && selectedCount === 0 && (
         <p className="text-xs text-orange-400 mt-1 flex items-center gap-1">
           <AlertCircle className="w-3 h-3" />
           Select at least one printer
         </p>
       )}
+
+      {/* Warning when no model selected (only in model mode) */}
+      {assignmentMode === 'model' && !targetModel && (
+        <p className="text-xs text-orange-400 mt-1 flex items-center gap-1">
+          <AlertCircle className="w-3 h-3" />
+          Select a target printer model
+        </p>
+      )}
     </div>
   );
 }

frontend/src/components/PrintModal/index.tsx

@@ -1,6 +1,6 @@
 import { useState, useEffect, useMemo } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { X, Printer, Loader2, Calendar, Pencil, AlertCircle } from 'lucide-react';
+import { X, Printer, Loader2, Calendar, Pencil, AlertCircle, AlertTriangle } from 'lucide-react';
 import { api } from '../../api/client';
 import type { PrintQueueItemCreate, PrintQueueItemUpdate } from '../../api/client';
 import { Card, CardContent } from '../Card';
@@ -19,6 +19,7 @@ import type {
   PrintOptions,
   ScheduleOptions,
   ScheduleType,
+  AssignmentMode,
 } from './types';
 import { DEFAULT_PRINT_OPTIONS, DEFAULT_SCHEDULE_OPTIONS } from './types';
 
@@ -117,6 +118,23 @@ export function PrintModal({
   // Per-printer override configs (for multi-printer selection)
   const [perPrinterConfigs, setPerPrinterConfigs] = useState<Record<number, PerPrinterConfig>>({});
 
+  // Assignment mode: 'printer' (specific) or 'model' (any of model)
+  const [assignmentMode, setAssignmentMode] = useState<AssignmentMode>(() => {
+    // Initialize from queue item if editing with target_model
+    if (mode === 'edit-queue-item' && queueItem?.target_model) {
+      return 'model';
+    }
+    return 'printer';
+  });
+
+  // Target model for model-based assignment
+  const [targetModel, setTargetModel] = useState<string | null>(() => {
+    if (mode === 'edit-queue-item' && queueItem?.target_model) {
+      return queueItem.target_model;
+    }
+    return null;
+  });
+
   // Track initial values for clearing mappings on change (edit mode only)
   const [initialPrinterIds] = useState(() => (mode === 'edit-queue-item' && queueItem?.printer_id ? [queueItem.printer_id] : []));
   const [initialPlateId] = useState(() => (mode === 'edit-queue-item' && queueItem ? queueItem.plate_id : null));
@@ -145,6 +163,16 @@ export function PrintModal({
     queryFn: api.getPrinters,
   });
 
+  // Fetch archive details to get sliced_for_model
+  const { data: archiveDetails } = useQuery({
+    queryKey: ['archive', archiveId],
+    queryFn: () => api.getArchive(archiveId!),
+    enabled: !!archiveId && !isLibraryFile,
+  });
+
+  // Get sliced_for_model from archive or library file
+  const slicedForModel = archiveDetails?.sliced_for_model || null;
+
   // Fetch plates for archives
   const { data: archivePlatesData, isError: archivePlatesError } = useQuery({
     queryKey: ['archive-plates', archiveId],
@@ -304,14 +332,20 @@ export function PrintModal({
   const handleSubmit = async (e?: React.FormEvent) => {
     e?.preventDefault();
 
-    // Validate printer selection
-    if (selectedPrinters.length === 0) {
+    // Validate printer/model selection
+    if (assignmentMode === 'printer' && selectedPrinters.length === 0) {
       showToast('Please select at least one printer', 'error');
       return;
     }
+    if (assignmentMode === 'model' && !targetModel) {
+      showToast('Please select a target printer model', 'error');
+      return;
+    }
 
     setIsSubmitting(true);
-    setSubmitProgress({ current: 0, total: selectedPrinters.length });
+    // For model-based assignment, we just make one API call
+    const totalCount = assignmentMode === 'model' ? 1 : selectedPrinters.length;
+    setSubmitProgress({ current: 0, total: totalCount });
 
     const results: { success: number; failed: number; errors: string[] } = {
       success: 0,
@@ -332,15 +366,16 @@ export function PrintModal({
     };
 
     // Common queue data for add-to-queue and edit modes
-    const getQueueData = (printerId: number): PrintQueueItemCreate => ({
-      printer_id: printerId,
+    const getQueueData = (printerId: number | null): PrintQueueItemCreate => ({
+      printer_id: assignmentMode === 'printer' ? printerId : null,
+      target_model: assignmentMode === 'model' ? targetModel : null,
       // Use library_file_id for library files, archive_id for archives
       archive_id: isLibraryFile ? undefined : archiveId,
       library_file_id: isLibraryFile ? libraryFileId : undefined,
       require_previous_success: scheduleOptions.requirePreviousSuccess,
       auto_off_after: scheduleOptions.autoOffAfter,
       manual_start: scheduleOptions.scheduleType === 'manual',
-      ams_mapping: getMappingForPrinter(printerId),
+      ams_mapping: printerId ? getMappingForPrinter(printerId) : undefined,
       plate_id: selectedPlate,
       scheduled_time: scheduleOptions.scheduleType === 'scheduled' && scheduleOptions.scheduledTime
         ? new Date(scheduleOptions.scheduledTime).toISOString()
@@ -348,35 +383,24 @@ export function PrintModal({
       ...printOptions,
     });
 
-    for (let i = 0; i < selectedPrinters.length; i++) {
-      const printerId = selectedPrinters[i];
-      setSubmitProgress({ current: i + 1, total: selectedPrinters.length });
-
+    // Model-based assignment: single API call
+    if (assignmentMode === 'model') {
+      setSubmitProgress({ current: 1, total: 1 });
       try {
         if (mode === 'reprint') {
-          // Reprint mode - start print immediately
-          const printerMapping = getMappingForPrinter(printerId);
-          if (isLibraryFile) {
-            await api.printLibraryFile(libraryFileId!, printerId, {
-              ams_mapping: printerMapping,
-              ...printOptions,
-            });
-          } else {
-            await api.reprintArchive(archiveId!, printerId, {
-              plate_id: selectedPlate ?? undefined,
-              ams_mapping: printerMapping,
-              ...printOptions,
-            });
-          }
-        } else if (mode === 'edit-queue-item' && i === 0) {
-          // Edit mode - update the original queue item for the first printer
-          const printerMapping = getMappingForPrinter(printerId);
+          // Model-based reprint not supported (need specific printer for immediate print)
+          showToast('Model-based assignment only works with queue mode', 'error');
+          setIsSubmitting(false);
+          return;
+        } else if (mode === 'edit-queue-item') {
+          // Edit mode - update with target_model
           const updateData: PrintQueueItemUpdate = {
-            printer_id: printerId,
+            printer_id: null,
+            target_model: targetModel,
             require_previous_success: scheduleOptions.requirePreviousSuccess,
             auto_off_after: scheduleOptions.autoOffAfter,
             manual_start: scheduleOptions.scheduleType === 'manual',
-            ams_mapping: printerMapping,
+            ams_mapping: undefined,
             plate_id: selectedPlate,
             scheduled_time: scheduleOptions.scheduleType === 'scheduled' && scheduleOptions.scheduledTime
               ? new Date(scheduleOptions.scheduledTime).toISOString()
@@ -385,14 +409,63 @@ export function PrintModal({
           };
           await updateQueueMutation.mutateAsync(updateData);
         } else {
-          // Add-to-queue mode OR edit mode with additional printers
-          await addToQueueMutation.mutateAsync(getQueueData(printerId));
+          // Add-to-queue mode with model-based assignment
+          await addToQueueMutation.mutateAsync(getQueueData(null));
         }
         results.success++;
       } catch (error) {
         results.failed++;
-        const printerName = printers?.find(p => p.id === printerId)?.name || `Printer ${printerId}`;
-        results.errors.push(`${printerName}: ${(error as Error).message}`);
+        results.errors.push((error as Error).message);
+      }
+    } else {
+      // Printer-based assignment: loop through selected printers
+      for (let i = 0; i < selectedPrinters.length; i++) {
+        const printerId = selectedPrinters[i];
+        setSubmitProgress({ current: i + 1, total: selectedPrinters.length });
+
+        try {
+          if (mode === 'reprint') {
+            // Reprint mode - start print immediately
+            const printerMapping = getMappingForPrinter(printerId);
+            if (isLibraryFile) {
+              await api.printLibraryFile(libraryFileId!, printerId, {
+                ams_mapping: printerMapping,
+                ...printOptions,
+              });
+            } else {
+              await api.reprintArchive(archiveId!, printerId, {
+                plate_id: selectedPlate ?? undefined,
+                ams_mapping: printerMapping,
+                ...printOptions,
+              });
+            }
+          } else if (mode === 'edit-queue-item' && i === 0) {
+            // Edit mode - update the original queue item for the first printer
+            const printerMapping = getMappingForPrinter(printerId);
+            const updateData: PrintQueueItemUpdate = {
+              printer_id: printerId,
+              target_model: null,
+              require_previous_success: scheduleOptions.requirePreviousSuccess,
+              auto_off_after: scheduleOptions.autoOffAfter,
+              manual_start: scheduleOptions.scheduleType === 'manual',
+              ams_mapping: printerMapping,
+              plate_id: selectedPlate,
+              scheduled_time: scheduleOptions.scheduleType === 'scheduled' && scheduleOptions.scheduledTime
+                ? new Date(scheduleOptions.scheduledTime).toISOString()
+                : null,
+              ...printOptions,
+            };
+            await updateQueueMutation.mutateAsync(updateData);
+          } else {
+            // Add-to-queue mode OR edit mode with additional printers
+            await addToQueueMutation.mutateAsync(getQueueData(printerId));
+          }
+          results.success++;
+        } catch (error) {
+          results.failed++;
+          const printerName = printers?.find(p => p.id === printerId)?.name || `Printer ${printerId}`;
+          results.errors.push(`${printerName}: ${(error as Error).message}`);
+        }
       }
     }
 
@@ -400,11 +473,15 @@ export function PrintModal({
 
     // Show result toast
     if (results.failed === 0) {
-      const action = mode === 'reprint' ? 'sent to' : (mode === 'edit-queue-item' ? 'updated/queued for' : 'queued for');
-      if (results.success === 1) {
-        showToast(mode === 'edit-queue-item' ? 'Queue item updated' : `Print ${action} printer`);
+      if (assignmentMode === 'model') {
+        showToast(mode === 'edit-queue-item' ? 'Queue item updated' : `Queued for any ${targetModel}`);
       } else {
-        showToast(`Print ${action} ${results.success} printers`);
+        const action = mode === 'reprint' ? 'sent to' : (mode === 'edit-queue-item' ? 'updated/queued for' : 'queued for');
+        if (results.success === 1) {
+          showToast(mode === 'edit-queue-item' ? 'Queue item updated' : `Print ${action} printer`);
+        } else {
+          showToast(`Print ${action} ${results.success} printers`);
+        }
       }
       queryClient.invalidateQueries({ queryKey: ['queue'] });
       onSuccess?.();
@@ -422,14 +499,18 @@ export function PrintModal({
   const canSubmit = useMemo(() => {
     if (isPending) return false;
 
-    // Need at least one selected printer
-    if (selectedPrinters.length === 0) return false;
+    // Need valid printer/model selection
+    if (assignmentMode === 'printer' && selectedPrinters.length === 0) return false;
+    if (assignmentMode === 'model' && !targetModel) return false;
+
+    // Model-based assignment only works in queue modes (not immediate reprint)
+    if (assignmentMode === 'model' && mode === 'reprint') return false;
 
     // For multi-plate archive files, need a selected plate (library files skip this)
     if (!isLibraryFile && isMultiPlate && !selectedPlate) return false;
 
     return true;
-  }, [selectedPrinters.length, isMultiPlate, selectedPlate, isPending, isLibraryFile]);
+  }, [selectedPrinters.length, assignmentMode, targetModel, mode, isMultiPlate, selectedPlate, isPending, isLibraryFile]);
 
   // Modal title and action button text based on mode
   const getModalConfig = () => {
@@ -541,8 +622,29 @@ export function PrintModal({
               filamentReqs={effectiveFilamentReqs}
               onAutoConfigurePrinter={multiPrinterMapping.autoConfigurePrinter}
               onUpdatePrinterConfig={multiPrinterMapping.updatePrinterConfig}
+              assignmentMode={mode === 'reprint' ? 'printer' : assignmentMode}
+              onAssignmentModeChange={mode !== 'reprint' ? setAssignmentMode : undefined}
+              targetModel={targetModel}
+              onTargetModelChange={mode !== 'reprint' ? setTargetModel : undefined}
+              slicedForModel={slicedForModel}
             />
 
+            {/* Compatibility warning when sliced model doesn't match selected printer */}
+            {slicedForModel && assignmentMode === 'printer' && selectedPrinters.length === 1 && (() => {
+              const selectedPrinter = printers?.find(p => p.id === selectedPrinters[0]);
+              if (selectedPrinter && selectedPrinter.model && slicedForModel !== selectedPrinter.model) {
+                return (
+                  <div className="p-3 mb-2 bg-yellow-500/10 border border-yellow-500/30 rounded-lg flex items-center gap-2">
+                    <AlertTriangle className="w-4 h-4 text-yellow-400 flex-shrink-0" />
+                    <span className="text-sm text-yellow-400">
+                      File was sliced for {slicedForModel}, but printing on {selectedPrinter.model}
+                    </span>
+                  </div>
+                );
+              }
+              return null;
+            })()}
+
             {/* Warning when archive data couldn't be loaded */}
             {archiveDataMissing && (
               <div className="flex items-start gap-2 p-3 mb-2 bg-orange-500/10 border border-orange-500/30 rounded-lg text-sm">
@@ -565,7 +667,7 @@ export function PrintModal({
             )}
 
             {/* Print options */}
-            {(mode === 'reprint' || effectivePrinterCount > 0) && (
+            {(mode === 'reprint' || effectivePrinterCount > 0 || (assignmentMode === 'model' && targetModel)) && (
               <PrintOptionsPanel options={printOptions} onChange={setPrintOptions} />
             )}
 

frontend/src/components/PrintModal/types.ts

@@ -104,6 +104,13 @@ export interface PlatesResponse {
   plates: PlateInfo[];
 }
 
+/**
+ * Assignment mode for queue items.
+ * - 'printer': Assign to specific printer(s)
+ * - 'model': Assign to any printer of a specific model (load balancing)
+ */
+export type AssignmentMode = 'printer' | 'model';
+
 /**
  * Props for the PrinterSelector component.
  */
@@ -115,6 +122,16 @@ export interface PrinterSelectorProps {
   allowMultiple?: boolean;
   /** Show inactive printers (for edit mode where original assignment may be inactive) */
   showInactive?: boolean;
+  /** Current assignment mode */
+  assignmentMode?: AssignmentMode;
+  /** Handler for assignment mode change */
+  onAssignmentModeChange?: (mode: AssignmentMode) => void;
+  /** Selected target model (when assignmentMode is 'model') */
+  targetModel?: string | null;
+  /** Handler for target model change */
+  onTargetModelChange?: (model: string | null) => void;
+  /** Suggested model from sliced file (for pre-selection) */
+  slicedForModel?: string | null;
 }
 
 /**

frontend/src/components/UploadModal.tsx

@@ -1,5 +1,5 @@
 import { useState, useCallback, useRef, useEffect } from 'react';
-import { useMutation, useQueryClient, useQuery } from '@tanstack/react-query';
+import { useMutation, useQueryClient } from '@tanstack/react-query';
 import { Upload, X, File, CheckCircle, AlertCircle, Loader2 } from 'lucide-react';
 import { api } from '../api/client';
 import type { BulkUploadResult } from '../api/client';
@@ -27,7 +27,6 @@ export function UploadModal({ onClose, initialFiles }: UploadModalProps) {
     initialFiles?.filter(f => f.name.endsWith('.3mf')).map(file => ({ file, status: 'pending' as const })) || []
   );
   const [isDragging, setIsDragging] = useState(false);
-  const [selectedPrinter, setSelectedPrinter] = useState<number | undefined>();
   const [uploadResult, setUploadResult] = useState<BulkUploadResult | null>(null);
 
   // Close on Escape key
@@ -39,14 +38,9 @@ export function UploadModal({ onClose, initialFiles }: UploadModalProps) {
     return () => window.removeEventListener('keydown', handleKeyDown);
   }, [onClose]);
 
-  const { data: printers } = useQuery({
-    queryKey: ['printers'],
-    queryFn: api.getPrinters,
-  });
-
   const uploadMutation = useMutation({
     mutationFn: (filesToUpload: File[]) =>
-      api.uploadArchivesBulk(filesToUpload, selectedPrinter),
+      api.uploadArchivesBulk(filesToUpload),
     onSuccess: (result) => {
       setUploadResult(result);
       queryClient.invalidateQueries({ queryKey: ['archives'] });
@@ -200,26 +194,11 @@ export function UploadModal({ onClose, initialFiles }: UploadModalProps) {
             </div>
           </div>
 
-          {/* Optional Printer Selection */}
+          {/* Info about printer model extraction */}
           <div className="px-4 pb-4">
-            <label className="block text-sm text-bambu-gray mb-2">
-              Associate with printer (optional)
-            </label>
-            <select
-              className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
-              value={selectedPrinter || ''}
-              onChange={(e) =>
-                setSelectedPrinter(e.target.value ? Number(e.target.value) : undefined)
-              }
-              disabled={isUploading}
-            >
-              <option value="">No printer</option>
-              {printers?.map((p) => (
-                <option key={p.id} value={p.id}>
-                  {p.name}
-                </option>
-              ))}
-            </select>
+            <p className="text-xs text-bambu-gray">
+              The printer model will be automatically extracted from the 3MF file metadata.
+            </p>
           </div>
 
           {/* File List */}

frontend/src/pages/ArchivesPage.tsx

@@ -716,6 +716,12 @@ function ArchiveCard({
               {archive.object_count} object{archive.object_count > 1 ? 's' : ''}
             </div>
           )}
+          {archive.sliced_for_model && (
+            <div className="flex items-center gap-1.5 text-bambu-gray" title={`Sliced for ${archive.sliced_for_model}`}>
+              <Printer className="w-3 h-3" />
+              {archive.sliced_for_model}
+            </div>
+          )}
           {archive.filament_type && (
             <div className="flex items-center gap-1.5 col-span-2">
               <span className="text-bambu-gray text-xs">{archive.filament_type}</span>
@@ -1531,9 +1537,20 @@ function ArchiveListRow({
               </Link>
             )}
           </div>
-          {archive.filament_type && (
+          {(archive.filament_type || archive.sliced_for_model) && (
             <div className="flex items-center gap-1.5 mt-0.5">
-              <span className="text-xs text-bambu-gray">{archive.filament_type}</span>
+              {archive.sliced_for_model && (
+                <span className="text-xs text-bambu-gray flex items-center gap-1" title={`Sliced for ${archive.sliced_for_model}`}>
+                  <Printer className="w-2.5 h-2.5" />
+                  {archive.sliced_for_model}
+                </span>
+              )}
+              {archive.sliced_for_model && archive.filament_type && (
+                <span className="text-bambu-gray/50">·</span>
+              )}
+              {archive.filament_type && (
+                <span className="text-xs text-bambu-gray">{archive.filament_type}</span>
+              )}
               {archive.filament_color && (
                 <div className="flex items-center gap-0.5 flex-wrap">
                   {archive.filament_color.split(',').map((color, i) => (
@@ -2674,7 +2691,7 @@ export function ArchivesPage() {
             <ArchiveCard
               key={archive.id}
               archive={archive}
-              printerName={archive.printer_id ? printerMap.get(archive.printer_id) || 'Unknown' : 'No Printer'}
+              printerName={archive.printer_id ? printerMap.get(archive.printer_id) || 'Unknown' : (archive.sliced_for_model ? `Sliced for ${archive.sliced_for_model}` : 'No Printer')}
               isSelected={selectedIds.has(archive.id)}
               onSelect={toggleSelect}
               selectionMode={selectionMode}
@@ -2701,7 +2718,7 @@ export function ArchivesPage() {
               <ArchiveListRow
                 key={archive.id}
                 archive={archive}
-                printerName={archive.printer_id ? printerMap.get(archive.printer_id) || 'Unknown' : 'No Printer'}
+                printerName={archive.printer_id ? printerMap.get(archive.printer_id) || 'Unknown' : (archive.sliced_for_model ? `Sliced for ${archive.sliced_for_model}` : 'No Printer')}
                 isSelected={selectedIds.has(archive.id)}
                 onSelect={toggleSelect}
                 selectionMode={selectionMode}

frontend/src/pages/QueuePage.tsx

@@ -391,9 +391,13 @@ function SortableQueueItem({
           </div>
 
           <div className="flex items-center gap-3 text-sm text-bambu-gray">
-            <span className={`flex items-center gap-1.5 ${item.printer_id === null ? 'text-orange-400' : ''}`}>
+            <span className={`flex items-center gap-1.5 ${item.printer_id === null && !item.target_model ? 'text-orange-400' : ''} ${item.target_model ? 'text-blue-400' : ''}`}>
               <Printer className="w-3.5 h-3.5" />
-              {item.printer_id === null ? 'Unassigned' : (item.printer_name || `Printer #${item.printer_id}`)}
+              {item.target_model
+                ? `Any ${item.target_model}`
+                : item.printer_id === null
+                  ? 'Unassigned'
+                  : (item.printer_name || `Printer #${item.printer_id}`)}
             </span>
             {item.print_time_seconds && (
               <span className="flex items-center gap-1.5">

static/index.html

@@ -23,7 +23,7 @@
 
     <!-- Splash screens for iOS -->
     <link rel="apple-touch-startup-image" href="/img/android-chrome-512x512.png" />
-    <script type="module" crossorigin src="/assets/index-BkOQ27rS.js"></script>
+    <script type="module" crossorigin src="/assets/index-CeGzUNH5.js"></script>
     <link rel="stylesheet" crossorigin href="/assets/index-nwJjDqT-.css">
   </head>
   <body>