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190
plugins/PostProcessingPlugin/scripts/ColorMix.py
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190
plugins/PostProcessingPlugin/scripts/ColorMix.py
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# ColorMix script - 2-1 extruder color mix and blending
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# This script is specific for the Geeetech A10M dual extruder but should work with other Marlin printers.
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# It runs with the PostProcessingPlugin which is released under the terms of the AGPLv3 or higher.
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# This script is licensed under the Creative Commons - Attribution - Share Alike (CC BY-SA) terms
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#Authors of the 2-1 ColorMix plug-in / script:
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# Written by John Hryb - john.hryb.4@gmail.com
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##history / change-log:
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##V1.0.0
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## Uses -
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## M163 - Set Mix Factor
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## M164 - Save Mix - saves to T3 as a unique mix
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import re #To perform the search and replace.
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from ..Script import Script
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class ColorMix(Script):
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def __init__(self):
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super().__init__()
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def getSettingDataString(self):
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return """{
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"name":"ColorMix 2-1",
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"key":"ColorMix 2-1",
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"metadata": {},
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"version": 2,
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"settings":
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{
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"measurement_units":
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{
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"label": "Units of measurement",
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"description": "Input value as mm or layer number.",
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"type": "enum",
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"options": {"mm":"mm","layer":"Layer"},
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"default_value": "layer"
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},
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"start_height":
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{
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"label": "Start Height",
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"description": "Value to start at (mm or layer)",
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"type": "float",
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"default_value": 0,
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"minimum_value": "0"
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},
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"behavior":
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{
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"label": "Fixed or blend",
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"description": "Select Fixed (set new mixture) or Blend mode (dynamic mix)",
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"type": "enum",
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"options": {"fixed_value":"Fixed","blend_value":"Blend"},
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"default_value": "fixed_value"
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},
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"finish_height":
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{
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"label": "Finish Height",
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"description": "Value to stop at (mm or layer)",
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"type": "float",
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"default_value": 0,
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"minimum_value": "0",
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"minimum_value_warning": "0.1",
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"enabled": "c_behavior == 'blend_value'"
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},
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"mix_start_ratio":
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{
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"label": "Start mix ratio",
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"description": "First extruder percentage 0-100",
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"type": "float",
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"default_value": 100,
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"minimum_value": "0",
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"minimum_value_warning": "0",
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"maximum_value_warning": "100"
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},
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"mix_finish_ratio":
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{
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"label": "End mix ratio",
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"description": "First extruder percentage 0-100 to finish blend",
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"type": "float",
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"default_value": 0,
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"minimum_value": "0",
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"minimum_value_warning": "0",
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"maximum_value_warning": "100",
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"enabled": "c_behavior == 'blend_value'"
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},
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"notes":
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{
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"label": "Notes",
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"description": "A spot to put a note",
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"type": "str",
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"default_value": ""
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}
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}
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}"""
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def getValue(self, line, key, default = None): #replace default getvalue due to comment-reading feature
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if not key in line or (";" in line and line.find(key) > line.find(";") and
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not ";ChangeAtZ" in key and not ";LAYER:" in key):
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return default
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subPart = line[line.find(key) + len(key):] #allows for string lengths larger than 1
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if ";ChangeAtZ" in key:
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m = re.search("^[0-4]", subPart)
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elif ";LAYER:" in key:
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m = re.search("^[+-]?[0-9]*", subPart)
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else:
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#the minus at the beginning allows for negative values, e.g. for delta printers
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m = re.search("^[-]?[0-9]*\.?[0-9]*", subPart)
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if m == None:
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return default
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try:
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return float(m.group(0))
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except:
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return default
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def execute(self, data):
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#get user variables
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firstHeight = 0.0
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secondHeight = 0.0
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firstMix = 0.0
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SecondMix = 0.0
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firstHeight = self.getSettingValueByKey("start_height")
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secondHeight = self.getSettingValueByKey("finish_height")
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firstMix = self.getSettingValueByKey("mix_start_ratio")
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SecondMix = self.getSettingValueByKey("mix_finish_ratio")
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#locals
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layer = 0
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#get layer height
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layerHeight = .2
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for active_layer in data:
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lines = active_layer.split("\n")
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for line in lines:
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if ";Layer height: " in line:
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layerHeight = self.getValue(line, ";Layer height: ", layerHeight)
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break
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#get layers to use
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startLayer = 0
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endLayer = 0
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if self.getSettingValueByKey("measurement_units") == "mm":
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if firstHeight == 0:
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startLayer = 0
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else:
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startLayer = firstHeight / layerHeight
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if secondHeight == 0:
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endLayer = 0
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else:
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endLayer = secondHeight / layerHeight
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else: #layer height
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startLayer = firstHeight
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endLayer = secondHeight
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#see if one-shot
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if self.getSettingValueByKey("behavior") == "fixed_value":
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endLayer = startLayer
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firstExtruderIncrements = 0
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else: #blend
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firstExtruderIncrements = (SecondMix - firstMix) / (endLayer - startLayer)
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firstExtruderValue = 0
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index = 0
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#start scanning
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for active_layer in data:
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modified_gcode = ""
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lineIndex = 0;
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lines = active_layer.split("\n")
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for line in lines:
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#dont leave blanks
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if line != "":
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modified_gcode += line + "\n"
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# find current layer
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if ";LAYER:" in line:
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layer = self.getValue(line, ";LAYER:", layer)
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if (layer >= startLayer) and (layer <= endLayer): #find layers of interest
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if lines[lineIndex + 4] == "T2": #check if needing to delete old data
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del lines[(lineIndex + 1):(lineIndex + 5)]
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firstExtruderValue = int(((layer - startLayer) * firstExtruderIncrements) + firstMix)
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if firstExtruderValue == 100:
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modified_gcode += "M163 S0 P1\n"
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modified_gcode += "M163 S1 P0\n"
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elif firstExtruderValue == 0:
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modified_gcode += "M163 S0 P0\n"
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modified_gcode += "M163 S1 P1\n"
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else:
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modified_gcode += "M163 S0 P0.{:02d}\n".format(firstExtruderValue)
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modified_gcode += "M163 S1 P0.{:02d}\n".format(100 - firstExtruderValue)
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modified_gcode += "M164 S2\n"
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modified_gcode += "T2\n"
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lineIndex += 1 #for deleting index
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data[index] = modified_gcode
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index += 1
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return data
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