Add all filament profiles for dual hotend setup

Completed filament profiles:
- PETG: Original (240°C, 12mm³/s) & Bambu (245°C, 18mm³/s)
- ABS: Original (250°C, 12mm³/s) & Bambu (255°C, 18mm³/s)
- TPU: Original (225°C, 8mm³/s) & Bambu (230°C, 10mm³/s)
- Carbon Fiber: Bambu ONLY (215°C, 15mm³/s, abrasive!)

Key settings per material:
- PETG: Lower fan (30%), slower retracts to prevent oozing
- ABS: No fan, enclosure required, higher temps
- TPU: Very slow retracts (20-25mm/s), minimal retraction
- Carbon: Abrasive flag set, steel nozzle required

All profiles include:
- Correct max volumetric speeds
- Temperature offsets for steel nozzle (+5°C)
- Shorter retracts for Bambu hotend (1.8mm vs 2.5mm)
- Appropriate Pressure Advance values
- Filament-specific cooling settings

orca-profiles/Neptune4Plus-Bambu/filament_carbon_bambu.json

@@ -0,0 +1,96 @@
+{
+  "name": "Carbon Fiber - Bambu",
+  "instantiation": "2026-03-12",
+  "note": "Carbon Fiber / Abrasive Filament Profile for BAMBU LAB Hotend ONLY (23 mm³/s, steel nozzle required!)",
+  "type": "filament",
+  "warning": "DO NOT USE WITH ORIGINAL HOTEND - Will destroy brass nozzle!",
+  
+  "filament_settings": {
+    "filament_type": "PLA-CF",
+    "filament_density": 1.28,
+    "filament_cost": 40,
+    "filament_weight": 1000,
+    "filament_spool_weight": 0,
+    "filament_diameter": 1.75,
+    "filament_max_volumetric_speed": 15.0,
+    "filament_abrasive": 1,
+    
+    "nozzle_temperature": 215,
+    "nozzle_temperature_initial_layer": 220,
+    "nozzle_temperature_reduction": 0,
+    "nozzle_temperature_reduction_initial_layer": 0,
+    "reduce_initial_layer_print_speed": 0,
+    "initial_layer_print_speed": 40,
+    
+    "temperature_change_window": 3,
+    
+    "bed_temperature": 65,
+    "bed_temperature_initial_layer": 70,
+    "bed_temperature_initial_layer_reduction": 0,
+    
+    "cool_plate_temp": 65,
+    "cool_plate_temp_initial_layer": 70,
+    "textured_plate_temp": 70,
+    "textured_plate_temp_initial_layer": 75,
+    "hot_plate_temp": 75,
+    "hot_plate_temp_initial_layer": 80,
+    
+    "filament_retraction_minimum_travel": 1.5,
+    "filament_deretraction_speed": 35,
+    "filament_toolchange_delay": 0,
+    "filament_cooling_final_temperature": 140,
+    "filament_cooling_initial_temperature": 220,
+    "filament_cooling_zone_pause": 0,
+    "filament_cooling_zone_fan": 100,
+    "filament_cooling_zone_fan_pause": 0,
+    "filament_wipe_temperature": null,
+    "filament_wipe_pause": 0,
+    "filament_wipe_speed": 35,
+    "filament_park_position": 0,
+    "filament_park_speed": 35,
+    "filament_load_speed": 35,
+    "filament_unload_speed": 35,
+    "filament_ramming_volume": 0,
+    "filament_ramming_volume_external": 0,
+    "filament_ramming_flow": 1,
+    "filament_ramming_acceleration": 9000,
+    "filament_deretraction_extra_length": 0,
+    "filament_deretraction_extra_speed": 0,
+    "filament_retract_before_wipe": 0,
+    "filament_wipe_before_retract": 0,
+    "filament_retract_restart_extra": 0,
+    "filament_retract_restart_extra_speed": 0,
+    "filament_retract_lift": 0,
+    "filament_retract_lift_enforce": "all_surfaces",
+    "filament_retract_lift_above": 0,
+    "filament_retract_lift_below": 0,
+    "filament_retract_when_changing_layer": 1,
+    "filament_retract_on_stop": 0,
+    "filament_retract_speed": 35,
+    "filament_retract_length": 1.8,
+    "filament_z_hop": 0,
+    "filament_z_hop_types": "normal",
+    "filament_z_hop_threshold": 1.0,
+    
+    "compatible_printers": ["Elegoo Neptune 4 Plus"],
+    "compatible_printers_condition": "hotend == \"bambu\"",
+    
+    "filament_start_gcode": "; Filament Start - Bambu Hotend (STEEL NOZZLE REQUIRED!)\nM117 Printing CARBON FIBER (Abrasive!)...\n",
+    "filament_end_gcode": "; Filament End - Bambu Hotend\n",
+    
+    "filament_cost_update_behavior": "use_average",
+    "filament_weight_update_behavior": "use_average",
+    
+    "filament_is_support": 0,
+    "filament_soluble": 0,
+    "filament_dissolve_interval": 0,
+    "filament_flow_ratio": 0.96,
+    "filament_max_speed": 0,
+    "filament_minimal_purge_on_wipe_tower": 15,
+    "filament_pressure_advance": 0.020,
+    "filament_hybrid": 0,
+    "filament_vendor": "Generic",
+    "filament_color": "#2F2F2F",
+    "filament_material": "PLA-CF"
+  }
+}