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Add post processing source files
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ChrisTerBeke
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221
plugins/PostProcessingPlugin/scripts/PauseAtHeight.py
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221
plugins/PostProcessingPlugin/scripts/PauseAtHeight.py
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from ..Script import Script
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# from cura.Settings.ExtruderManager import ExtruderManager
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class PauseAtHeight(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":"Pause at height",
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"key": "PauseAtHeight",
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"metadata": {},
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"version": 2,
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"settings":
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{
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"pause_height":
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{
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"label": "Pause Height",
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"description": "At what height should the pause occur",
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"unit": "mm",
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"type": "float",
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"default_value": 5.0
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},
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"head_park_x":
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{
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"label": "Park Print Head X",
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"description": "What X location does the head move to when pausing.",
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"unit": "mm",
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"type": "float",
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"default_value": 190
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},
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"head_park_y":
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{
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"label": "Park Print Head Y",
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"description": "What Y location does the head move to when pausing.",
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"unit": "mm",
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"type": "float",
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"default_value": 190
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},
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"retraction_amount":
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{
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"label": "Retraction",
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"description": "How much filament must be retracted at pause.",
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"unit": "mm",
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"type": "float",
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"default_value": 0
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},
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"retraction_speed":
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{
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"label": "Retraction Speed",
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"description": "How fast to retract the filament.",
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"unit": "mm/s",
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"type": "float",
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"default_value": 25
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},
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"extrude_amount":
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{
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"label": "Extrude Amount",
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"description": "How much filament should be extruded after pause. This is needed when doing a material change on Ultimaker2's to compensate for the retraction after the change. In that case 128+ is recommended.",
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"unit": "mm",
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"type": "float",
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"default_value": 0
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},
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"extrude_speed":
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{
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"label": "Extrude Speed",
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"description": "How fast to extrude the material after pause.",
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"unit": "mm/s",
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"type": "float",
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"default_value": 3.3333
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},
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"redo_layers":
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{
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"label": "Redo Layers",
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"description": "Redo a number of previous layers after a pause to increases adhesion.",
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"unit": "layers",
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"type": "int",
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"default_value": 0
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},
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"standby_temperature":
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{
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"label": "Standby Temperature",
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"description": "Change the temperature during the pause",
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"unit": "°C",
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"type": "int",
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"default_value": 0
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},
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"resume_temperature":
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{
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"label": "Resume Temperature",
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"description": "Change the temperature after the pause",
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"unit": "°C",
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"type": "int",
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"default_value": 0
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}
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}
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}"""
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def execute(self, data: list):
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"""data is a list. Each index contains a layer"""
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x = 0.
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y = 0.
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current_z = 0.
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pause_height = self.getSettingValueByKey("pause_height")
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retraction_amount = self.getSettingValueByKey("retraction_amount")
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retraction_speed = self.getSettingValueByKey("retraction_speed")
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extrude_amount = self.getSettingValueByKey("extrude_amount")
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extrude_speed = self.getSettingValueByKey("extrude_speed")
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park_x = self.getSettingValueByKey("head_park_x")
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park_y = self.getSettingValueByKey("head_park_y")
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layers_started = False
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redo_layers = self.getSettingValueByKey("redo_layers")
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standby_temperature = self.getSettingValueByKey("standby_temperature")
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resume_temperature = self.getSettingValueByKey("resume_temperature")
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# T = ExtruderManager.getInstance().getActiveExtruderStack().getProperty("material_print_temperature", "value")
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# with open("out.txt", "w") as f:
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# f.write(T)
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# use offset to calculate the current height: <current_height> = <current_z> - <layer_0_z>
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layer_0_z = 0.
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got_first_g_cmd_on_layer_0 = False
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for layer in data:
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lines = layer.split("\n")
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for line in lines:
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if ";LAYER:0" in line:
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layers_started = True
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continue
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if not layers_started:
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continue
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if self.getValue(line, 'G') == 1 or self.getValue(line, 'G') == 0:
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current_z = self.getValue(line, 'Z')
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if not got_first_g_cmd_on_layer_0:
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layer_0_z = current_z
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got_first_g_cmd_on_layer_0 = True
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x = self.getValue(line, 'X', x)
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y = self.getValue(line, 'Y', y)
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if current_z is not None:
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current_height = current_z - layer_0_z
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if current_height >= pause_height:
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index = data.index(layer)
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prevLayer = data[index - 1]
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prevLines = prevLayer.split("\n")
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current_e = 0.
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for prevLine in reversed(prevLines):
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current_e = self.getValue(prevLine, 'E', -1)
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if current_e >= 0:
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break
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# include a number of previous layers
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for i in range(1, redo_layers + 1):
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prevLayer = data[index - i]
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layer = prevLayer + layer
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prepend_gcode = ";TYPE:CUSTOM\n"
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prepend_gcode += ";added code by post processing\n"
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prepend_gcode += ";script: PauseAtHeight.py\n"
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prepend_gcode += ";current z: %f \n" % current_z
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prepend_gcode += ";current height: %f \n" % current_height
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# Retraction
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prepend_gcode += "M83\n"
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if retraction_amount != 0:
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prepend_gcode += "G1 E-%f F%f\n" % (retraction_amount, retraction_speed * 60)
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# Move the head away
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prepend_gcode += "G1 Z%f F300\n" % (current_z + 1)
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prepend_gcode += "G1 X%f Y%f F9000\n" % (park_x, park_y)
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if current_z < 15:
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prepend_gcode += "G1 Z15 F300\n"
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# Disable the E steppers
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prepend_gcode += "M84 E0\n"
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# Set extruder standby temperature
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prepend_gcode += "M104 S%i; standby temperature\n" % (standby_temperature)
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# Wait till the user continues printing
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prepend_gcode += "M0 ;Do the actual pause\n"
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# Set extruder resume temperature
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prepend_gcode += "M109 S%i; resume temperature\n" % (resume_temperature)
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# Push the filament back,
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if retraction_amount != 0:
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prepend_gcode += "G1 E%f F%f\n" % (retraction_amount, retraction_speed * 60)
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# Optionally extrude material
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if extrude_amount != 0:
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prepend_gcode += "G1 E%f F%f\n" % (extrude_amount, extrude_speed * 60)
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# and retract again, the properly primes the nozzle
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# when changing filament.
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if retraction_amount != 0:
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prepend_gcode += "G1 E-%f F%f\n" % (retraction_amount, retraction_speed * 60)
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# Move the head back
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prepend_gcode += "G1 Z%f F300\n" % (current_z + 1)
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prepend_gcode += "G1 X%f Y%f F9000\n" % (x, y)
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if retraction_amount != 0:
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prepend_gcode += "G1 E%f F%f\n" % (retraction_amount, retraction_speed * 60)
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prepend_gcode += "G1 F9000\n"
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prepend_gcode += "M82\n"
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# reset extrude value to pre pause value
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prepend_gcode += "G92 E%f\n" % (current_e)
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layer = prepend_gcode + layer
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# Override the data of this layer with the
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# modified data
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data[index] = layer
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return data
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break
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return data
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