Files
bambuddy/backend/app/models/printer.py
T
maziggy 888891fdc6 Add build plate empty detection feature
Automatically detect if objects are on the build plate before printing
and pause the print immediately if detected.

Features:
- Per-printer toggle to enable/disable plate detection
- Multi-reference calibration: store up to 5 reference images per printer
  for different plate types (textured, smooth, high-temp, etc.)
- Automatic print pause when objects detected at print start
- Push notification and WebSocket alert when print is paused
- ROI (Region of Interest) calibration UI with sliders to adjust
  detection area
- Reference management: view thumbnails, add labels, delete references
- Works with both built-in and external cameras
- Uses buffered camera frames when stream is active (no blocking)
- Split button UI: main button opens modal, chevron toggles on/off
- Green visual indicator when plate detection is enabled
- Included in backup/restore
2026-01-26 13:04:29 +01:00

58 lines
3.5 KiB
Python

from datetime import datetime
from sqlalchemy import Boolean, DateTime, Float, String, func
from sqlalchemy.orm import Mapped, mapped_column, relationship
from backend.app.core.database import Base
class Printer(Base):
__tablename__ = "printers"
id: Mapped[int] = mapped_column(primary_key=True)
name: Mapped[str] = mapped_column(String(100))
serial_number: Mapped[str] = mapped_column(String(50), unique=True)
ip_address: Mapped[str] = mapped_column(String(45))
access_code: Mapped[str] = mapped_column(String(20))
model: Mapped[str | None] = mapped_column(String(50))
location: Mapped[str | None] = mapped_column(String(100)) # Group/location name
nozzle_count: Mapped[int] = mapped_column(default=1) # 1 or 2, auto-detected from MQTT
is_active: Mapped[bool] = mapped_column(Boolean, default=True)
auto_archive: Mapped[bool] = mapped_column(Boolean, default=True)
print_hours_offset: Mapped[float] = mapped_column(Float, default=0.0) # Baseline hours to add
runtime_seconds: Mapped[int] = mapped_column(default=0) # Accumulated active runtime (RUNNING/PAUSE states)
last_runtime_update: Mapped[datetime | None] = mapped_column(
DateTime, nullable=True
) # Last time runtime was updated
# External camera configuration
external_camera_url: Mapped[str | None] = mapped_column(String(500), nullable=True)
external_camera_type: Mapped[str | None] = mapped_column(String(20), nullable=True) # mjpeg, rtsp, snapshot
external_camera_enabled: Mapped[bool] = mapped_column(Boolean, default=False)
# Plate detection - check if build plate is empty before starting print
plate_detection_enabled: Mapped[bool] = mapped_column(Boolean, default=False)
# ROI for plate detection (percentages: 0.0-1.0)
plate_detection_roi_x: Mapped[float | None] = mapped_column(Float, nullable=True) # X start %
plate_detection_roi_y: Mapped[float | None] = mapped_column(Float, nullable=True) # Y start %
plate_detection_roi_w: Mapped[float | None] = mapped_column(Float, nullable=True) # Width %
plate_detection_roi_h: Mapped[float | None] = mapped_column(Float, nullable=True) # Height %
created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
updated_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), onupdate=func.now())
# Relationships
archives: Mapped[list["PrintArchive"]] = relationship(back_populates="printer", cascade="all, delete-orphan")
smart_plug: Mapped["SmartPlug | None"] = relationship(back_populates="printer", uselist=False)
notification_providers: Mapped[list["NotificationProvider"]] = relationship(back_populates="printer")
maintenance_items: Mapped[list["PrinterMaintenance"]] = relationship(
back_populates="printer", cascade="all, delete-orphan"
)
kprofile_notes: Mapped[list["KProfileNote"]] = relationship(back_populates="printer", cascade="all, delete-orphan")
ams_history: Mapped[list["AMSSensorHistory"]] = relationship(back_populates="printer", cascade="all, delete-orphan")
from backend.app.models.ams_history import AMSSensorHistory # noqa: E402
from backend.app.models.archive import PrintArchive # noqa: E402
from backend.app.models.kprofile_note import KProfileNote # noqa: E402
from backend.app.models.maintenance import PrinterMaintenance # noqa: E402
from backend.app.models.notification import NotificationProvider # noqa: E402
from backend.app.models.smart_plug import SmartPlug # noqa: E402