Implement aggressive G-code cleaning post-processing for Cosmos3D printer

docs/Cosmos3D_PostProcessing.md

@@ -0,0 +1,150 @@
+# Cosmos3D Embedded Post-Processing
+
+This feature adds embedded C++ post-processing specifically for Cosmos3D printers.
+
+## Overview
+
+The Cosmos3D post-processing script is embedded directly in the source code and automatically runs for any printer with "Cosmos" in its `printer_model` configuration. This provides printer-specific optimizations without requiring external script files.
+
+## Features
+
+### Automatic Detection
+- Detects Cosmos3D printers by checking if `printer_model` contains "Cosmos"
+- Runs automatically during the post-processing phase
+- Does not interfere with regular post-processing scripts
+
+### G-Code Cleaning Algorithm
+The embedded script performs aggressive G-code cleaning specifically for concrete printing:
+
+1. **Content Filtering**
+   - Removes all lines before the "COSMOS" marker
+   - Only processes G-code after the COSMOS marker is found
+
+2. **Layer Change Modification**
+   - Converts `;LAYER_CHANGE` to `;LAYER_CHANGE M3`
+   ```gcode
+   ;LAYER_CHANGE M3
+   ```
+
+3. **Comment Removal**
+   - Strips all comment lines (starting with semicolon) except layer changes
+   - Removes clutter from the G-code file
+
+4. **Progress Command Removal**
+   - Removes M73 progress update commands
+   - Reduces file size and processing overhead
+
+5. **G1 Command Filtering**
+   - Removes extruder (E) values from all G1 commands
+   - Keeps G1 lines containing X or Y coordinates
+   - Removes G1 lines with only Z movement (with or without F parameter)
+   - Removes G1 lines with only feed rate (F parameter)
+   - **Filters consecutive dots**: Removes G1 commands where X/Y coordinates are closer than 1.5mm to the previous point
+   ```gcode
+   G1 X10 Y10 E2 F1800  →  G1 X10 Y10 F1800
+   G1 Z5 F300           →  [removed]
+   G1 F1500             →  [removed]
+   G1 X10.5 Y10.3       →  [removed if < 1.5mm from last point]
+   ```
+
+6. **Command Preservation**
+   - Maintains all other G-code commands (M104, M106, M84, etc.)
+   - Ensures compatibility with printer firmware
+
+### Example Transformation
+
+**Input G-code:**
+```gcode
+; generated by OrCa Slicer
+; FLAVOR:Marlin
+; initial comments before COSMOS
+COSMOS
+; This comment should be removed
+G1 X0 Y0 E2 F1800
+G1 X1 Y0 E2.5 F1800
+G1 X1.2 Y0.2 E3 F1800
+G1 X3 Y0 E4 F1800
+G1 Z5 F300
+G1 F1500
+;LAYER_CHANGE
+M73 P50
+G1 X10 Y10 E5 F1800
+G1 X10.5 Y10.3 E5.5 F1800
+G1 X20 Y20 E6 F1800
+M104 S210
+M84
+```
+
+**Output G-code:**
+```gcode
+G1 X0 Y0 F1800
+G1 X3 Y0 F1800
+;LAYER_CHANGE M3
+G1 X10 Y10 F1800
+G1 X20 Y20 F1800
+M104 S210
+M84
+```
+
+**Explanation:**
+- All content before "COSMOS" removed
+- Comments and M73 commands removed
+- E values removed from G1 commands
+- Z-only and F-only G1 commands removed
+- Consecutive points closer than 1.5mm filtered out:
+  - (1, 0) is 1.0mm from (0, 0) - filtered
+  - (1.2, 0.2) is 1.22mm from (0, 0) - filtered
+  - (3, 0) is 3.0mm from (0, 0) - kept
+  - (10.5, 10.3) is 0.58mm from (10, 10) - filtered
+  - (20, 20) is 14.14mm from (10, 10) - kept
+
+## Integration with Existing System
+
+### Execution Order
+1. Regular environment setup
+2. **Cosmos3D embedded processing** (if applicable)
+3. Regular post-processing scripts (if defined)
+4. Output file handling
+
+### Compatibility
+- Works alongside existing post-processing scripts
+- Does not break existing functionality
+- Gracefully handles failures (logs warning and continues)
+
+## Implementation Details
+
+### Files Modified
+- `src/libslic3r/GCode/PostProcessor.hpp` - Added function declaration
+- `src/libslic3r/GCode/PostProcessor.cpp` - Added implementation and integration
+
+### Key Functions
+- `run_cosmos_post_processing()` - Main embedded processing function
+- Modified `run_post_process_scripts()` - Integrated cosmos processing
+
+### Printer Configuration
+Example printer configuration in `resources/profiles/Cosmos3D/machine/Cosmos3D.json`:
+```json
+{
+  "printer_model": "Cosmos3D v1",
+  "printer_variant": "0.4",
+  ...
+}
+```
+
+## Testing
+
+The implementation includes comprehensive tests verifying:
+- Cosmos3D printers are correctly detected and processed
+- Non-Cosmos3D printers are skipped
+- Regular post-processing scripts continue to work
+- Both embedded and script processing can run together
+- No processing occurs when no scripts are defined for non-Cosmos printers
+
+## Usage
+
+1. Configure a printer with "Cosmos" in the `printer_model` name
+2. The embedded post-processing will automatically run during G-code generation
+3. Optional: Add additional post-processing scripts as usual
+4. Generated G-code will include Cosmos3D-specific optimizations
+
+No additional configuration or external files are required.

resources/profiles/Cosmos3D.json

@@ -1,46 +1,46 @@
-{
-    "name": "Cosmos3D",
-    "version": "02.01.01.00",
-    "force_update": "0",
-    "description": "Cosmos3D configurations",
-    "machine_model_list": [
-        {
-            "name": "Cosmos3D X1",
-            "sub_path": "machine/Cosmos3D X1.json"
-        }
-    ],
-    "process_list": [
-        {
-            "name": "fdm_process_common",
-            "sub_path": "process/fdm_process_common.json"
-        },
-		{
-             "name": "Concrete Printing @Cosmos3D X1 60 nozzle",
-             "sub_path": "process/Concrete Printing @Cosmos3D X1 60 nozzle.json"
-        }
-    ],
-    "filament_list": [
-        {
-            "name": "fdm_filament_common",
-            "sub_path": "filament/fdm_filament_common.json"
-        },
-        {
-            "name": "fdm_filament_concrete",
-            "sub_path": "filament/fdm_filament_concrete.json"
-        },
-        {
-            "name": "Generic Concrete",
-            "sub_path": "filament/Generic Concrete.json"
-        }
-    ],
-    "machine_list": [
-        {
-            "name": "fdm_machine_common",
-            "sub_path": "machine/fdm_machine_common.json"
-        },
-        {     
-	        "name": "Cosmos3D X1 60 nozzle",
-            "sub_path": "machine/Cosmos3D X1 60 nozzle.json"
-        }
-    ]
-}
+{
+  "name": "Cosmos3D",
+  "version": "02.01.01.00",
+  "force_update": "0",
+  "description": "Cosmos3D configurations",
+  "machine_model_list": [
+    {
+      "name": "Cosmos3D X1",
+      "sub_path": "machine/Cosmos3D X1.json"
+    }
+  ],
+  "process_list": [
+    {
+      "name": "fdm_process_common",
+      "sub_path": "process/fdm_process_common.json"
+    },
+    {
+      "name": "Concrete Printing @Cosmos3D X1 60 nozzle",
+      "sub_path": "process/Concrete Printing @Cosmos3D X1 60 nozzle.json"
+    }
+  ],
+  "filament_list": [
+    {
+      "name": "fdm_filament_common",
+      "sub_path": "filament/fdm_filament_common.json"
+    },
+    {
+      "name": "fdm_filament_concrete",
+      "sub_path": "filament/fdm_filament_concrete.json"
+    },
+    {
+      "name": "Generic Concrete",
+      "sub_path": "filament/Generic Concrete.json"
+    }
+  ],
+  "machine_list": [
+    {
+      "name": "fdm_machine_common",
+      "sub_path": "machine/fdm_machine_common.json"
+    },
+    {
+      "name": "Cosmos3D X1 60 nozzle",
+      "sub_path": "machine/Cosmos3D X1 60 nozzle.json"
+    }
+  ]
+}

resources/profiles/Cosmos3D/process/Concrete Printing @Cosmos3D X1 60 nozzle.json

@@ -102,5 +102,6 @@
   "prime_tower_width": "35",
   "xy_hole_compensation": "0",
   "xy_contour_compensation": "0",
-  "compatible_printers": ["Cosmos3D X1 60 nozzle"]
+  "compatible_printers": ["Cosmos3D X1 60 nozzle"],
+  "post_process": ""
 }