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329c5c5c11
The name wasn't really covering what it was doing. It wasn't setting the duration of the pause, it was setting the timeout for the stepper disarm. Also, ive set the defaults so that the behavior remains the same, unlesss a user explicitly enables this CURA-7331
377 lines
17 KiB
Python
377 lines
17 KiB
Python
# Copyright (c) 2019 Ultimaker B.V.
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# Cura is released under the terms of the LGPLv3 or higher.
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from ..Script import Script
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from UM.Application import Application #To get the current printer's settings.
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from UM.Logger import Logger
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from typing import List, Tuple
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class PauseAtHeight(Script):
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def __init__(self) -> None:
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super().__init__()
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def getSettingDataString(self) -> str:
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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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"disarm_timeout":
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{
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"label": "Disarm timeout",
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"description": "After this time steppers are going to disarm (meaning that they can easily lose their positions). Set this to 0 if you don't want to set any duration.",
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"type": "int",
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"value": "0",
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"minimum_value": "0",
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"minimum_value_warning": "0",
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"maximum_value_warning": "1800",
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"unit": "s"
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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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"display_text":
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{
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"label": "Display Text",
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"description": "Text that should appear on the display while paused. If left empty, there will not be any message.",
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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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## Get the X and Y values for a layer (will be used to get X and Y of the
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# layer after the pause).
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def getNextXY(self, layer: str) -> Tuple[float, float]:
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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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## Inserts the pause commands.
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# \param data: List of layers.
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# \return New list of layers.
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def execute(self, data: List[str]) -> List[str]:
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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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disarm_timeout = self.getSettingValueByKey("disarm_timeout")
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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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firmware_retract = Application.getInstance().getGlobalContainerStack().getProperty("machine_firmware_retract", "value")
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control_temperatures = Application.getInstance().getGlobalContainerStack().getProperty("machine_nozzle_temp_enabled", "value")
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initial_layer_height = Application.getInstance().getGlobalContainerStack().getProperty("layer_height_0", "value")
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display_text = self.getSettingValueByKey("display_text")
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is_griffin = False
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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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current_height = 0
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current_layer = 0
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current_extrusion_f = 0
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got_first_g_cmd_on_layer_0 = False
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current_t = 0 #Tracks the current extruder for tracking the target temperature.
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target_temperature = {} #Tracks the current target temperature for each extruder.
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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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if ";FLAVOR:Griffin" in line:
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is_griffin = True
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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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#Track the latest printing temperature in order to resume at the correct temperature.
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if line.startswith("T"):
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current_t = self.getValue(line, "T")
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m = self.getValue(line, "M")
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if m is not None and (m == 104 or m == 109) and self.getValue(line, "S") is not None:
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extruder = current_t
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if self.getValue(line, "T") is not None:
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extruder = self.getValue(line, "T")
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target_temperature[extruder] = self.getValue(line, "S")
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if not layers_started:
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continue
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# Look for the feed rate of an extrusion instruction
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if self.getValue(line, "F") is not None and self.getValue(line, "E") is not None:
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current_extrusion_f = self.getValue(line, "F")
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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 - initial_layer_height
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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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continue # Scan the enitre layer, z-changes are not always on the same/first line.
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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 lin in prev_lines:
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new_e = self.getValue(lin, "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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if not is_griffin:
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# Retraction
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prepend_gcode += self.putValue(M = 83) + " ; switch to relative E values for any needed retraction\n"
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if retraction_amount != 0:
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if firmware_retract: #Can't set the distance directly to what the user wants. We have to choose ourselves.
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retraction_count = 1 if control_temperatures else 3 #Retract more if we don't control the temperature.
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for i in range(retraction_count):
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prepend_gcode += self.putValue(G = 10) + "\n"
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else:
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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) + " ; move up a millimeter to get out of the way\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) + " ; too close to bed--move to at least 15mm\n"
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if control_temperatures:
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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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if display_text:
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prepend_gcode += "M117 " + display_text + "\n"
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# Set the disarm timeout
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if disarm_timeout > 0:
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prepend_gcode += self.putValue(M = 18, S = disarm_timeout) + " ; Set the disarm timeout\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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if not is_griffin:
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if control_temperatures:
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# Set extruder resume temperature
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prepend_gcode += self.putValue(M = 109, S = int(target_temperature.get(current_t, 0))) + " ; 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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if current_z < 15:
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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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prepend_gcode += self.putValue(G = 1, Z = current_z, F = 300) + " ; move back down to resume height\n"
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if retraction_amount != 0:
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if firmware_retract: #Can't set the distance directly to what the user wants. We have to choose ourselves.
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retraction_count = 1 if control_temperatures else 3 #Retract more if we don't control the temperature.
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for i in range(retraction_count):
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prepend_gcode += self.putValue(G = 11) + "\n"
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else:
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prepend_gcode += self.putValue(G = 1, E = retraction_amount, F = retraction_speed * 60) + "\n"
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if current_extrusion_f != 0:
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prepend_gcode += self.putValue(G = 1, F = current_extrusion_f) + " ; restore extrusion feedrate\n"
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else:
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Logger.log("w", "No previous feedrate found in gcode, feedrate for next layer(s) might be incorrect")
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prepend_gcode += self.putValue(M = 82) + " ; switch back to absolute E values\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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