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https://git.mirrors.martin98.com/https://github.com/Ultimaker/Cura
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308 lines
13 KiB
Python
308 lines
13 KiB
Python
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_at":
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{
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"label": "Pause at",
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"description": "Whether to pause at a certain height or at a certain layer.",
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"type": "enum",
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"options": {"height": "Height", "layer_no": "Layer No."},
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"default_value": "height"
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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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"minimum_value": "0",
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"minimum_value_warning": "0.27",
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"enabled": "pause_at == 'height'"
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},
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"pause_layer":
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{
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"label": "Pause Layer",
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"description": "At what layer should the pause occur",
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"type": "int",
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"value": "math.floor((pause_height - 0.27) / 0.1) + 1",
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"minimum_value": "0",
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"minimum_value_warning": "1",
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"enabled": "pause_at == 'layer_no'"
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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 getNextXY(self, layer: str):
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"""
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Get the X and Y values for a layer (will be used to get X and Y of
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the layer after the pause
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"""
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lines = layer.split("\n")
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for line in lines:
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if self.getValue(line, "X") is not None and self.getValue(line, "Y") is not None:
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x = self.getValue(line, "X")
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y = self.getValue(line, "Y")
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return x, y
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return 0, 0
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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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pause_at = self.getSettingValueByKey("pause_at")
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pause_height = self.getSettingValueByKey("pause_height")
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pause_layer = self.getSettingValueByKey("pause_layer")
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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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# 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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current_z = 0
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got_first_g_cmd_on_layer_0 = False
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nbr_negative_layers = 0
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for index, layer in enumerate(data):
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lines = layer.split("\n")
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# Scroll each line of instruction for each layer in the G-code
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for line in lines:
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# Fist positive layer reached
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if ";LAYER:0" in line:
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layers_started = True
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# Count nbr of negative layers (raft)
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elif ";LAYER:-" in line:
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nbr_negative_layers += 1
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if not layers_started:
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continue
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# If a Z instruction is in the line, read the current Z
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if self.getValue(line, "Z") is not None:
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current_z = self.getValue(line, "Z")
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if pause_at == "height":
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# Ignore if the line is not G1 or G0
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if self.getValue(line, "G") != 1 and self.getValue(line, "G") != 0:
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continue
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# This block is executed once, the first time there is a G
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# command, to get the z offset (z for first positive layer)
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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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current_height = current_z - layer_0_z
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if current_height < pause_height:
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break # Try the next layer.
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# Pause at layer
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else:
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if not line.startswith(";LAYER:"):
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continue
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current_layer = line[len(";LAYER:"):]
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try:
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current_layer = int(current_layer)
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# Couldn't cast to int. Something is wrong with this
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# g-code data
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except ValueError:
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continue
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if current_layer < pause_layer - nbr_negative_layers:
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continue
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# Get X and Y from the next layer (better position for
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# the nozzle)
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next_layer = data[index + 1]
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x, y = self.getNextXY(next_layer)
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prev_layer = data[index - 1]
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prev_lines = prev_layer.split("\n")
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current_e = 0.
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# Access last layer, browse it backwards to find
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# last extruder absolute position
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for prevLine in reversed(prev_lines):
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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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prev_layer = data[index - i]
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layer = prev_layer + layer
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# Get extruder's absolute position at the
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# beginning of the first layer redone
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# see https://github.com/nallath/PostProcessingPlugin/issues/55
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if i == redo_layers:
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# Get X and Y from the next layer (better position for
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# the nozzle)
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x, y = self.getNextXY(layer)
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prev_lines = prev_layer.split("\n")
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for line in prev_lines:
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new_e = self.getValue(line, 'E', current_e)
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if new_e != current_e:
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current_e = new_e
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break
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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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if pause_at == "height":
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prepend_gcode += ";current z: {z}\n".format(z=current_z)
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prepend_gcode += ";current height: {height}\n".format(height=current_height)
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else:
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prepend_gcode += ";current layer: {layer}\n".format(layer=current_layer)
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# Retraction
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prepend_gcode += self.putValue(M=83) + "\n"
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if retraction_amount != 0:
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prepend_gcode += self.putValue(G=1, E=-retraction_amount, F=retraction_speed * 60) + "\n"
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# Move the head away
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prepend_gcode += self.putValue(G=1, Z=current_z + 1, F=300) + "\n"
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# This line should be ok
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prepend_gcode += self.putValue(G=1, X=park_x, Y=park_y, F=9000) + "\n"
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if current_z < 15:
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prepend_gcode += self.putValue(G=1, Z=15, F=300) + "\n"
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# Disable the E steppers
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prepend_gcode += self.putValue(M=84, E=0) + "\n"
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# Set extruder standby temperature
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prepend_gcode += self.putValue(M=104, S=standby_temperature) + "; standby temperature\n"
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# Wait till the user continues printing
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prepend_gcode += self.putValue(M=0) + ";Do the actual pause\n"
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# Set extruder resume temperature
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prepend_gcode += self.putValue(M=109, S=resume_temperature) + "; resume temperature\n"
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# Push the filament back,
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if retraction_amount != 0:
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prepend_gcode += self.putValue(G=1, E=retraction_amount, F=retraction_speed * 60) + "\n"
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# Optionally extrude material
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if extrude_amount != 0:
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prepend_gcode += self.putValue(G=1, E=extrude_amount, F=extrude_speed * 60) + "\n"
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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 += self.putValue(G=1, E=-retraction_amount, F=retraction_speed * 60) + "\n"
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# Move the head back
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prepend_gcode += self.putValue(G=1, Z=current_z + 1, F=300) + "\n"
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prepend_gcode += self.putValue(G=1, X=x, Y=y, F=9000) + "\n"
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if retraction_amount != 0:
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prepend_gcode += self.putValue(G=1, E=retraction_amount, F=retraction_speed * 60) + "\n"
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prepend_gcode += self.putValue(G=1, F=9000) + "\n"
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prepend_gcode += self.putValue(M=82) + "\n"
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# reset extrude value to pre pause value
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prepend_gcode += self.putValue(G=92, E=current_e) + "\n"
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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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return data
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