- Stepper motor length measurement (step counting)
- Laser rangefinder height measurement
- Stereo camera width/shape analysis
- PLC decision logic with C-priority
- Actuator pusher animation
- Full measurement overlay with live data
- Create physicalLayout.ts with all dimensions
- Update conveyorPath.ts to use correct belt height
- Rebuild ConveyorBelt with support legs, rollers, drive motor
- Item Y = BELT_TOP_Y + itemHeight/2