Update MaxVolumetricSpeed.py

Added Max E Jerk adjustment per #19998 .  It is inserted along with the M203's.

Update to Max Volumetric

Update

plugins/PostProcessingPlugin/scripts/MaxVolumetricSpeed.py

@@ -6,6 +6,7 @@
 #    M203 E6.24
 # This script is compatible with both Absolute and Relative Extrusion and/or Firmware Retraction and both 1.75 and 2.85 diameter filament.
 # Settings retreived from Cura are always for Extruder 1 (T0).
+# Added Jerk adjustment
 
 import re
 from ..Script import Script
@@ -14,12 +15,10 @@
 from UM.Message import Message
 
 class MaxVolumetricSpeed(Script):
-    """Performs a search-and-replace on the g-code.
-    """
 
     def getSettingDataString(self):
         return """{
-            "name": "Max E Speed by Flow Rate",
+            "name": "Max E Speed and Jerk Decoupler",
             "key": "MaxVolumetricSpeed",
             "metadata": {},
             "version": 2,
@@ -32,27 +31,52 @@ def getSettingDataString(self):
                     "type": "bool",
                     "default_value": true
                 },
+                "enable_volumetric":
+                {
+                    "label": "Enable Max Volumetric Control",
+                    "description": "Check the box to enable M203's for retraction and primes.",
+                    "type": "bool",
+                    "default_value": true,
+                    "enabled": "enable_script"
+                },
                 "max_E_flow_rate":
                 {
-                    "label": "Max E Flow Rate",
+                    "label": "    Max E Flow Rate",
                     "description": "The maximum flow rate that your printer works well at.  At every retraction or prime in the file the 'Max E Speed' will be adjusted upward for the retraction or prime and then back down for the printing extrusions.  The formula used is 'Max Flow Rate' divided by 'Filament Cross Section Area'.",
                     "type": "float",
                     "default_value": 12,
                     "unit": "mm3 / sec",
-                    "enabled": "enable_script"
+                    "enabled": "enable_script and enable_volumetric"
                 },
                 "use_units":
                 {
-                    "label": "The units to use in M203",
+                    "label": "    The units to use in M203",
                     "description": "Most firmwares (Ex: Marlin) use mm/second for the M203 Max Speeds.  RepRap might use mm/minute.",
                     "type": "enum",
                     "options": {
                         "per_second": "mm / second",
                         "per_minute": "mm / minute" },
                     "default_value": "per_second",
+                    "enabled": "enable_script and enable_volumetric"
+                },
+                "enable_jerk_adjustment":
+                {
+                    "label": "Enable Jerk adjustment",
+                    "description": "Check the box to also add M205's to adjust the Jerk for retractions.  This will decouple the Jerk setting for the E from the other axes.  ",
+                    "type": "bool",
+                    "default_value": false,
                     "enabled": "enable_script"
+                },
+                "max_e_jerk":
+                {
+                    "label": "    Max E Jerk",
+                    "description": "This will adjust the Jerk before retract/prime and then reset it after.  The reset is 'Print Jerk' from Cura.",
+                    "type": "int",
+                    "unit": "mm/sec  ",
+                    "default_value": 10,
+                    "enabled": "enable_script and enable_jerk_adjustment"
                 }
-            }
+            }  
         }"""
 
     def execute(self, data):
@@ -75,6 +99,10 @@ def execute(self, data):
         firmware_retraction = bool(curaApp.getProperty("machine_firmware_retract", "value"))
         filament_dia = float(extruder[0].getProperty("material_diameter", "value"))
         max_e_flow_rate = self.getSettingValueByKey("max_E_flow_rate")
+        enable_jerk_adjustment = self.getSettingValueByKey("enable_jerk_adjustment")
+        enable_volumetric = self.getSettingValueByKey("enable_volumetric")
+        max_e_jerk = self.getSettingValueByKey("max_e_jerk")
+        default_jerk = extruder[0].getProperty("jerk_print", "value")
         # Adjust the search parameter depending on Firmware Retraction
         if not firmware_retraction:
             search_string = "G1 F(\d+\.\d+|\d+) E(-?\d+\.\d+|-?\d+)"
@@ -87,13 +115,22 @@ def execute(self, data):
         if self.getSettingValueByKey("use_units") == "per_minute":
             speed_e_max = round(speed_e_max * 60)
             speed_e_reset = round(speed_e_reset * 60)
-        # Make the replacements
+        replacement_before = ""
+        replacement_after = ""
+        if enable_volumetric:
+            replacement_before += f"M203 E{speed_e_reset}\n"
+            replacement_after += f"\nM203 E{speed_e_max}"
+        if enable_jerk_adjustment:
+            replacement_before += f"M205 E{max_e_jerk}\n"
+            replacement_after += f"\nM205 E{default_jerk}"
         search_regex = re.compile(search_string)
+
+        # Make the replacements
         for num in range(2, len(data) - 1):
             lines = data[num].split("\n")
             for index, line in enumerate(lines):
                 if re.search(search_regex, line) is not None:
-                    lines[index] = f"M203 E{speed_e_reset}\n" + line + f"\nM203 E{speed_e_max}"
+                    lines[index] = replacement_before + line + replacement_after
             data[num] = "\n".join(lines)
         # Reset the E speed at the end of the print
         data[len(data)-1] = "M203 E" + str(speed_e_reset) + " ; Reset max E speed\n" + data[len(data)-1]