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Cura/plugins/PostProcessingPlugin/scripts/FilamentChange.py

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# Copyright (c) 2021 Ultimaker B.V.
# The PostProcessingPlugin is released under the terms of the AGPLv3 or higher.
# Modification 06.09.2020
# add checkbox, now you can choose and use configuration from the firmware itself.
from typing import List
from ..Script import Script
from UM.Application import Application #To get the current printer's settings.
class FilamentChange(Script):
_layer_keyword = ";LAYER:"
def __init__(self):
super().__init__()
def getSettingDataString(self):
return """{
"name": "Filament Change",
"key": "FilamentChange",
"metadata": {},
"version": 2,
"settings":
{
"layer_number":
{
"label": "Layer",
"description": "At what layer should color change occur. This will be before the layer starts printing. Specify multiple color changes with a comma.",
"unit": "",
"type": "str",
"default_value": "1"
},
"firmware_config":
{
"label": "Use Firmware Configuration",
"description": "Use the settings in your firmware, or customise the parameters of the filament change here.",
"type": "bool",
"default_value": false
},
"initial_retract":
{
"label": "Initial Retraction",
"description": "Initial filament retraction distance. The filament will be retracted with this amount before moving the nozzle away from the ongoing print.",
"unit": "mm",
"type": "float",
"default_value": 30.0,
"enabled": "not firmware_config"
},
"later_retract":
{
"label": "Later Retraction Distance",
"description": "Later filament retraction distance for removal. The filament will be retracted all the way out of the printer so that you can change the filament.",
"unit": "mm",
"type": "float",
"default_value": 300.0,
"enabled": "not firmware_config"
},
"x_position":
{
"label": "X Position",
"description": "Extruder X position. The print head will move here for filament change.",
"unit": "mm",
"type": "float",
"default_value": 0,
"enabled": "not firmware_config"
},
"y_position":
{
"label": "Y Position",
"description": "Extruder Y position. The print head will move here for filament change.",
"unit": "mm",
"type": "float",
"default_value": 0,
"enabled": "not firmware_config"
},
"z_position":
{
"label": "Z Position (relative)",
"description": "Extruder relative Z position. Move the print head up for filament change.",
"unit": "mm",
"type": "float",
"default_value": 0,
"minimum_value": 0
},
"retract_method":
{
"label": "Retract method",
"description": "The gcode variant to use for retract.",
"type": "enum",
"options": {"U": "Marlin (M600 U)", "L": "Reprap (M600 L)"},
"default_value": "U",
"value": "\\\"L\\\" if machine_gcode_flavor==\\\"RepRap (RepRap)\\\" else \\\"U\\\"",
"enabled": "not firmware_config"
},
"machine_gcode_flavor":
{
"label": "G-code flavor",
"description": "The type of g-code to be generated. This setting is controlled by the script and will not be visible.",
"type": "enum",
"options":
{
"RepRap (Marlin/Sprinter)": "Marlin",
"RepRap (Volumetric)": "Marlin (Volumetric)",
"RepRap (RepRap)": "RepRap",
"UltiGCode": "Ultimaker 2",
"Griffin": "Griffin",
"Makerbot": "Makerbot",
"BFB": "Bits from Bytes",
"MACH3": "Mach3",
"Repetier": "Repetier"
},
"default_value": "RepRap (Marlin/Sprinter)",
"enabled": "false"
},
"enable_before_macro":
{
"label": "Enable macro Before filament change",
"description": "Use this to insert a custom G-code macro before the filament change happens",
"type": "bool",
"default_value": false
},
"before_macro":
{
"label": "G-code Before",
"description": "Any custom G-code to run before the filament change happens, for example, M300 S1000 P10000 for a long beep.",
"unit": "",
"type": "str",
"default_value": "M300 S1000 P10000",
"enabled": "enable_before_macro"
},
"enable_after_macro":
{
"label": "Enable macro After filament change",
"description": "Use this to insert a custom G-code macro after the filament change",
"type": "bool",
"default_value": false
},
"after_macro":
{
"label": "G-code After",
"description": "Any custom G-code to run after the filament has been changed right before continuing the print, for example, you can add a sequence to purge filament and wipe the nozzle.",
"unit": "",
"type": "str",
"default_value": "M300 S440 P500",
"enabled": "enable_after_macro"
}
}
}"""
## Copy machine name and gcode flavor from global stack so we can use their value in the script stack
def initialize(self) -> None:
super().initialize()
global_container_stack = Application.getInstance().getGlobalContainerStack()
if global_container_stack is None or self._instance is None:
return
for key in ["machine_gcode_flavor"]:
self._instance.setProperty(key, "value", global_container_stack.getProperty(key, "value"))
def execute(self, data: List[str]):
"""Inserts the filament change g-code at specific layer numbers.
:param data: A list of layers of g-code.
:return: A similar list, with filament change commands inserted.
"""
layer_nums = self.getSettingValueByKey("layer_number")
initial_retract = self.getSettingValueByKey("initial_retract")
later_retract = self.getSettingValueByKey("later_retract")
x_pos = self.getSettingValueByKey("x_position")
y_pos = self.getSettingValueByKey("y_position")
z_pos = self.getSettingValueByKey("z_position")
firmware_config = self.getSettingValueByKey("firmware_config")
enable_before_macro = self.getSettingValueByKey("enable_before_macro")
before_macro = self.getSettingValueByKey("before_macro")
enable_after_macro = self.getSettingValueByKey("enable_after_macro")
after_macro = self.getSettingValueByKey("after_macro")
color_change = ";BEGIN FilamentChange plugin"
if enable_before_macro:
color_change = color_change + "\n" + before_macro
color_change = color_change + "\n" + "M600"
if not firmware_config:
if initial_retract is not None and initial_retract > 0.:
color_change = color_change + (" E%.2f" % initial_retract)
if later_retract is not None and later_retract > 0.:
# Reprap uses 'L': https://reprap.org/wiki/G-code#M600:_Filament_change_pause
# Marlin uses 'U' https://marlinfw.org/docs/gcode/M600.html
retract_method = self.getSettingValueByKey("retract_method")
color_change = color_change + (" %s%.2f" % (retract_method, later_retract))
if x_pos is not None:
color_change = color_change + (" X%.2f" % x_pos)
if y_pos is not None:
color_change = color_change + (" Y%.2f" % y_pos)
if z_pos is not None and z_pos > 0.:
color_change = color_change + (" Z%.2f" % z_pos)
if enable_after_macro:
color_change = color_change + "\n" + after_macro
color_change = color_change + "\n;END FilamentChange plugin\n"
layer_targets = layer_nums.split(",")
if len(layer_targets) > 0:
for layer_num in layer_targets:
try:
layer_num = int(layer_num.strip()) + 1 #Needs +1 because the 1st layer is reserved for start g-code.
except ValueError: #Layer number is not an integer.
continue
if 0 < layer_num < len(data):
data[layer_num] = color_change + data[layer_num]
return data
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