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|
# ChangeAtZ script - Change printing parameters at a given height
# This script is the successor of the TweakAtZ plugin for legacy Cura.
# It contains code from the TweakAtZ plugin V1.0-V4.x and from the ExampleScript by Jaime van Kessel, Ultimaker B.V.
# It runs with the PostProcessingPlugin which is released under the terms of the AGPLv3 or higher.
# This script is licensed under the Creative Commons - Attribution - Share Alike (CC BY-SA) terms
# Authors of the ChangeAtZ plugin / script:
# Written by Steven Morlock, smorloc@gmail.com
# Modified by Ricardo Gomez, ricardoga@otulook.com, to add Bed Temperature and make it work with Cura_13.06.04+
# Modified by Stefan Heule, Dim3nsioneer@gmx.ch since V3.0 (see changelog below)
# Modified by Jaime van Kessel (Ultimaker), j.vankessel@ultimaker.com to make it work for 15.10 / 2.x
# Modified by Ghostkeeper (Ultimaker), rubend@tutanota.com, to debug.
# Modified by Wes Hanney, https://github.com/novamxd, Retract Length + Speed, Clean up
# Modified by Alex Jaxon, https://github.com/legend069, Added option to modify Build Volume Temperature
# history / changelog:
# V3.0.1: TweakAtZ-state default 1 (i.e. the plugin works without any TweakAtZ comment)
# V3.1: Recognizes UltiGCode and deactivates value reset, fan speed added, alternatively layer no. to tweak at,
# extruder three temperature disabled by "#Ex3"
# V3.1.1: Bugfix reset flow rate
# V3.1.2: Bugfix disable TweakAtZ on Cool Head Lift
# V3.2: Flow rate for specific extruder added (only for 2 extruders), bugfix parser,
# added speed reset at the end of the print
# V4.0: Progress bar, tweaking over multiple layers, M605&M606 implemented, reset after one layer option,
# extruder three code removed, tweaking print speed, save call of Publisher class,
# uses previous value from other plugins also on UltiGCode
# V4.0.1: Bugfix for doubled G1 commands
# V4.0.2: Uses Cura progress bar instead of its own
# V4.0.3: Bugfix for cool head lift (contributed by luisonoff)
# V4.9.91: First version for Cura 15.06.x and PostProcessingPlugin
# V4.9.92: Modifications for Cura 15.10
# V4.9.93: Minor bugfixes (input settings) / documentation
# V4.9.94: Bugfix Combobox-selection; remove logger
# V5.0: Bugfix for fall back after one layer and doubled G0 commands when using print speed tweak, Initial version for Cura 2.x
# V5.0.1: Bugfix for calling unknown property 'bedTemp' of previous settings storage and unknown variable 'speed'
# V5.1: API Changes included for use with Cura 2.2
# V5.2.0: Wes Hanney. Added support for changing Retract Length and Speed. Removed layer spread option. Fixed issue of cumulative ChangeAtZ
# mods so they can now properly be stacked on top of each other. Applied code refactoring to clean up various coding styles. Added comments.
# Broke up functions for clarity. Split up class so it can be debugged outside of Cura.
# V5.2.1: Wes Hanney. Added support for firmware based retractions. Fixed issue of properly restoring previous values in single layer option.
# Added support for outputting changes to LCD (untested). Added type hints to most functions and variables. Added more comments. Created GCodeCommand
# class for better detection of G1 vs G10 or G11 commands, and accessing arguments. Moved most GCode methods to GCodeCommand class. Improved wording
# of Single Layer vs Keep Layer to better reflect what was happening.
# V5.3.0 Alex Jaxon, Added option to modify Build Volume Temperature keeping current format
#
# Uses -
# M220 S<factor in percent> - set speed factor override percentage
# M221 S<factor in percent> - set flow factor override percentage
# M221 S<factor in percent> T<0-#toolheads> - set flow factor override percentage for single extruder
# M104 S<temp> T<0-#toolheads> - set extruder <T> to target temperature <S>
# M140 S<temp> - set bed target temperature
# M106 S<PWM> - set fan speed to target speed <S>
# M207 S<mm> F<mm/m> - set the retract length <S> or feed rate <F>
# M117 - output the current changes
from typing import List, Dict
from ..Script import Script
import re
# this was broken up into a separate class so the main ChangeAtZ script could be debugged outside of Cura
class ChangeAtZ(Script):
version = "5.3.0"
def getSettingDataString(self):
return """{
"name": "ChangeAtZ """ + self.version + """(Experimental)",
"key": "ChangeAtZ",
"metadata": {},
"version": 2,
"settings": {
"caz_enabled": {
"label": "Enabled",
"description": "Allows adding multiple ChangeAtZ mods and disabling them as needed.",
"type": "bool",
"default_value": true
},
"a_trigger": {
"label": "Trigger",
"description": "Trigger at height or at layer no.",
"type": "enum",
"options": {
"height": "Height",
"layer_no": "Layer No."
},
"default_value": "height"
},
"b_targetZ": {
"label": "Change Height",
"description": "Z height to change at",
"unit": "mm",
"type": "float",
"default_value": 5.0,
"minimum_value": "0",
"minimum_value_warning": "0.1",
"maximum_value_warning": "230",
"enabled": "a_trigger == 'height'"
},
"b_targetL": {
"label": "Change Layer",
"description": "Layer no. to change at",
"unit": "",
"type": "int",
"default_value": 1,
"minimum_value": "-100",
"minimum_value_warning": "-1",
"enabled": "a_trigger == 'layer_no'"
},
"c_behavior": {
"label": "Apply To",
"description": "Target Layer + Subsequent Layers is good for testing changes between ranges of layers, ex: Layer 0 to 10 or 0mm to 5mm. Single layer is good for testing changes at a single layer, ex: at Layer 10 or 5mm only.",
"type": "enum",
"options": {
"keep_value": "Target Layer + Subsequent Layers",
"single_layer": "Target Layer Only"
},
"default_value": "keep_value"
},
"caz_output_to_display": {
"label": "Output to Display",
"description": "Displays the current changes to the LCD",
"type": "bool",
"default_value": false
},
"e1_Change_speed": {
"label": "Change Speed",
"description": "Select if total speed (print and travel) has to be changed",
"type": "bool",
"default_value": false
},
"e2_speed": {
"label": "Speed",
"description": "New total speed (print and travel)",
"unit": "%",
"type": "int",
"default_value": 100,
"minimum_value": "1",
"minimum_value_warning": "10",
"maximum_value_warning": "200",
"enabled": "e1_Change_speed"
},
"f1_Change_printspeed": {
"label": "Change Print Speed",
"description": "Select if print speed has to be changed",
"type": "bool",
"default_value": false
},
"f2_printspeed": {
"label": "Print Speed",
"description": "New print speed",
"unit": "%",
"type": "int",
"default_value": 100,
"minimum_value": "1",
"minimum_value_warning": "10",
"maximum_value_warning": "200",
"enabled": "f1_Change_printspeed"
},
"g1_Change_flowrate": {
"label": "Change Flow Rate",
"description": "Select if flow rate has to be changed",
"type": "bool",
"default_value": false
},
"g2_flowrate": {
"label": "Flow Rate",
"description": "New Flow rate",
"unit": "%",
"type": "int",
"default_value": 100,
"minimum_value": "1",
"minimum_value_warning": "10",
"maximum_value_warning": "200",
"enabled": "g1_Change_flowrate"
},
"g3_Change_flowrateOne": {
"label": "Change Flow Rate 1",
"description": "Select if first extruder flow rate has to be changed",
"type": "bool",
"default_value": false
},
"g4_flowrateOne": {
"label": "Flow Rate One",
"description": "New Flow rate Extruder 1",
"unit": "%",
"type": "int",
"default_value": 100,
"minimum_value": "1",
"minimum_value_warning": "10",
"maximum_value_warning": "200",
"enabled": "g3_Change_flowrateOne"
},
"g5_Change_flowrateTwo": {
"label": "Change Flow Rate 2",
"description": "Select if second extruder flow rate has to be changed",
"type": "bool",
"default_value": false
},
"g6_flowrateTwo": {
"label": "Flow Rate two",
"description": "New Flow rate Extruder 2",
"unit": "%",
"type": "int",
"default_value": 100,
"minimum_value": "1",
"minimum_value_warning": "10",
"maximum_value_warning": "200",
"enabled": "g5_Change_flowrateTwo"
},
"h1_Change_bedTemp": {
"label": "Change Bed Temp",
"description": "Select if Bed Temperature has to be changed",
"type": "bool",
"default_value": false
},
"h2_bedTemp": {
"label": "Bed Temp",
"description": "New Bed Temperature",
"unit": "C",
"type": "float",
"default_value": 60,
"minimum_value": "0",
"minimum_value_warning": "30",
"maximum_value_warning": "120",
"enabled": "h1_Change_bedTemp"
},
"h1_Change_buildVolumeTemperature": {
"label": "Change Build Volume Temperature",
"description": "Select if Build Volume Temperature has to be changed",
"type": "bool",
"default_value": false
},
"h2_buildVolumeTemperature": {
"label": "Build Volume Temperature",
"description": "New Build Volume Temperature",
"unit": "C",
"type": "float",
"default_value": 20,
"minimum_value": "0",
"minimum_value_warning": "10",
"maximum_value_warning": "50",
"enabled": "h1_Change_buildVolumeTemperature"
},
"i1_Change_extruderOne": {
"label": "Change Extruder 1 Temp",
"description": "Select if First Extruder Temperature has to be changed",
"type": "bool",
"default_value": false
},
"i2_extruderOne": {
"label": "Extruder 1 Temp",
"description": "New First Extruder Temperature",
"unit": "C",
"type": "float",
"default_value": 190,
"minimum_value": "0",
"minimum_value_warning": "160",
"maximum_value_warning": "250",
"enabled": "i1_Change_extruderOne"
},
"i3_Change_extruderTwo": {
"label": "Change Extruder 2 Temp",
"description": "Select if Second Extruder Temperature has to be changed",
"type": "bool",
"default_value": false
},
"i4_extruderTwo": {
"label": "Extruder 2 Temp",
"description": "New Second Extruder Temperature",
"unit": "C",
"type": "float",
"default_value": 190,
"minimum_value": "0",
"minimum_value_warning": "160",
"maximum_value_warning": "250",
"enabled": "i3_Change_extruderTwo"
},
"j1_Change_fanSpeed": {
"label": "Change Fan Speed",
"description": "Select if Fan Speed has to be changed",
"type": "bool",
"default_value": false
},
"j2_fanSpeed": {
"label": "Fan Speed",
"description": "New Fan Speed (0-100)",
"unit": "%",
"type": "int",
"default_value": 100,
"minimum_value": "0",
"minimum_value_warning": "0",
"maximum_value_warning": "100",
"enabled": "j1_Change_fanSpeed"
},
"caz_change_retract": {
"label": "Change Retraction",
"description": "Indicates you would like to modify retraction properties. Does not work when using relative extrusion.",
"type": "bool",
"default_value": false
},
"caz_retractstyle": {
"label": "Retract Style",
"description": "Specify if you're using firmware retraction or linear move based retractions. Check your printer settings to see which you're using.",
"type": "enum",
"options": {
"linear": "Linear Move",
"firmware": "Firmware"
},
"default_value": "linear",
"enabled": "caz_change_retract"
},
"caz_change_retractfeedrate": {
"label": "Change Retract Feed Rate",
"description": "Changes the retraction feed rate during print",
"type": "bool",
"default_value": false,
"enabled": "caz_change_retract"
},
"caz_retractfeedrate": {
"label": "Retract Feed Rate",
"description": "New Retract Feed Rate (mm/s)",
"unit": "mm/s",
"type": "float",
"default_value": 40,
"minimum_value": "0",
"minimum_value_warning": "0",
"maximum_value_warning": "100",
"enabled": "caz_change_retractfeedrate"
},
"caz_change_retractlength": {
"label": "Change Retract Length",
"description": "Changes the retraction length during print",
"type": "bool",
"default_value": false,
"enabled": "caz_change_retract"
},
"caz_retractlength": {
"label": "Retract Length",
"description": "New Retract Length (mm)",
"unit": "mm",
"type": "float",
"default_value": 6,
"minimum_value": "0",
"minimum_value_warning": "0",
"maximum_value_warning": "20",
"enabled": "caz_change_retractlength"
}
}
}"""
def __init__(self):
super().__init__()
def execute(self, data):
caz_instance = ChangeAtZProcessor()
caz_instance.targetValues = {}
# copy over our settings to our change z class
self.setIntSettingIfEnabled(caz_instance, "e1_Change_speed", "speed", "e2_speed")
self.setIntSettingIfEnabled(caz_instance, "f1_Change_printspeed", "printspeed", "f2_printspeed")
self.setIntSettingIfEnabled(caz_instance, "g1_Change_flowrate", "flowrate", "g2_flowrate")
self.setIntSettingIfEnabled(caz_instance, "g3_Change_flowrateOne", "flowrateOne", "g4_flowrateOne")
self.setIntSettingIfEnabled(caz_instance, "g5_Change_flowrateTwo", "flowrateTwo", "g6_flowrateTwo")
self.setFloatSettingIfEnabled(caz_instance, "h1_Change_bedTemp", "bedTemp", "h2_bedTemp")
self.setFloatSettingIfEnabled(caz_instance, "h1_Change_buildVolumeTemperature", "buildVolumeTemperature", "h2_buildVolumeTemperature")
self.setFloatSettingIfEnabled(caz_instance, "i1_Change_extruderOne", "extruderOne", "i2_extruderOne")
self.setFloatSettingIfEnabled(caz_instance, "i3_Change_extruderTwo", "extruderTwo", "i4_extruderTwo")
self.setIntSettingIfEnabled(caz_instance, "j1_Change_fanSpeed", "fanSpeed", "j2_fanSpeed")
self.setFloatSettingIfEnabled(caz_instance, "caz_change_retractfeedrate", "retractfeedrate", "caz_retractfeedrate")
self.setFloatSettingIfEnabled(caz_instance, "caz_change_retractlength", "retractlength", "caz_retractlength")
# is this mod enabled?
caz_instance.enabled = self.getSettingValueByKey("caz_enabled")
# are we emitting data to the LCD?
caz_instance.displayChangesToLcd = self.getSettingValueByKey("caz_output_to_display")
# are we doing linear move retractions?
caz_instance.linearRetraction = self.getSettingValueByKey("caz_retractstyle") == "linear"
# see if we're applying to a single layer or to all layers hence forth
caz_instance.applyToSingleLayer = self.getSettingValueByKey("c_behavior") == "single_layer"
# used for easy reference of layer or height targeting
caz_instance.targetByLayer = self.getSettingValueByKey("a_trigger") == "layer_no"
# change our target based on what we're targeting
caz_instance.targetLayer = self.getIntSettingByKey("b_targetL", None)
caz_instance.targetZ = self.getFloatSettingByKey("b_targetZ", None)
# run our script
return caz_instance.execute(data)
# Sets the given TargetValue in the ChangeAtZ instance if the trigger is specified
def setIntSettingIfEnabled(self, caz_instance, trigger, target, setting):
# stop here if our trigger isn't enabled
if not self.getSettingValueByKey(trigger):
return
# get our value from the settings
value = self.getIntSettingByKey(setting, None)
# skip if there's no value or we can't interpret it
if value is None:
return
# set our value in the target settings
caz_instance.targetValues[target] = value
# Sets the given TargetValue in the ChangeAtZ instance if the trigger is specified
def setFloatSettingIfEnabled(self, caz_instance, trigger, target, setting):
# stop here if our trigger isn't enabled
if not self.getSettingValueByKey(trigger):
return
# get our value from the settings
value = self.getFloatSettingByKey(setting, None)
# skip if there's no value or we can't interpret it
if value is None:
return
# set our value in the target settings
caz_instance.targetValues[target] = value
# Returns the given settings value as an integer or the default if it cannot parse it
def getIntSettingByKey(self, key, default):
# change our target based on what we're targeting
try:
return int(self.getSettingValueByKey(key))
except:
return default
# Returns the given settings value as an integer or the default if it cannot parse it
def getFloatSettingByKey(self, key, default):
# change our target based on what we're targeting
try:
return float(self.getSettingValueByKey(key))
except:
return default
# This is a utility class for getting details of gcodes from a given line
class GCodeCommand:
# The GCode command itself (ex: G10)
command = None,
# Contains any arguments passed to the command. The key is the argument name, the value is the value of the argument.
arguments = {}
# Contains the components of the command broken into pieces
components = []
# Constructor. Sets up defaults
def __init__(self):
self.reset()
# Gets a GCode Command from the given single line of GCode
@staticmethod
def getFromLine(line: str):
# obviously if we don't have a command, we can't return anything
if line is None or len(line) == 0:
return None
# we only support G or M commands
if line[0] != "G" and line[0] != "M":
return None
# remove any comments
line = re.sub(r";.*$", "", line)
# break into the individual components
command_pieces = line.strip().split(" ")
# our return command details
command = GCodeCommand()
# stop here if we don't even have something to interpret
if len(command_pieces) == 0:
return None
# stores all the components of the command within the class for later
command.components = command_pieces
# set the actual command
command.command = command_pieces[0]
# stop here if we don't have any parameters
if len(command_pieces) == 1:
return None
# return our indexed command
return command
# Handy function for reading a linear move command
@staticmethod
def getLinearMoveCommand(line: str):
# get our command from the line
linear_command = GCodeCommand.getFromLine(line)
# if it's not a linear move, we don't care
if linear_command is None or (linear_command.command != "G0" and linear_command.command != "G1"):
return None
# convert our values to floats (or defaults)
linear_command.arguments["F"] = linear_command.getArgumentAsFloat("F", None)
linear_command.arguments["X"] = linear_command.getArgumentAsFloat("X", None)
linear_command.arguments["Y"] = linear_command.getArgumentAsFloat("Y", None)
linear_command.arguments["Z"] = linear_command.getArgumentAsFloat("Z", None)
linear_command.arguments["E"] = linear_command.getArgumentAsFloat("E", None)
# return our new command
return linear_command
# Gets the value of a parameter or returns the default if there is none
def getArgument(self, name: str, default: str = None) -> str:
# parse our arguments (only happens once)
self.parseArguments()
# if we don't have the parameter, return the default
if name not in self.arguments:
return default
# otherwise return the value
return self.arguments[name]
# Gets the value of a parameter as a float or returns the default
def getArgumentAsFloat(self, name: str, default: float = None) -> float:
# try to parse as a float, otherwise return the default
try:
return float(self.getArgument(name, default))
except:
return default
# Gets the value of a parameter as an integer or returns the default
def getArgumentAsInt(self, name: str, default: int = None) -> int:
# try to parse as a integer, otherwise return the default
try:
return int(self.getArgument(name, default))
except:
return default
# Allows retrieving values from the given GCODE line
@staticmethod
def getDirectArgument(line: str, key: str, default: str = None) -> str:
if key not in line or (";" in line and line.find(key) > line.find(";") and ";ChangeAtZ" not in key and ";LAYER:" not in key):
return default
# allows for string lengths larger than 1
sub_part = line[line.find(key) + len(key):]
if ";ChangeAtZ" in key:
m = re.search("^[0-4]", sub_part)
elif ";LAYER:" in key:
m = re.search("^[+-]?[0-9]*", sub_part)
else:
# the minus at the beginning allows for negative values, e.g. for delta printers
m = re.search(r"^[-]?[0-9]*\.?[0-9]*", sub_part)
if m is None:
return default
try:
return m.group(0)
except:
return default
# Converts the command parameter to a int or returns the default
@staticmethod
def getDirectArgumentAsFloat(line: str, key: str, default: float = None) -> float:
# get the value from the command
value = GCodeCommand.getDirectArgument(line, key, default)
# stop here if it's the default
if value == default:
return value
try:
return float(value)
except:
return default
# Converts the command parameter to a int or returns the default
@staticmethod
def getDirectArgumentAsInt(line: str, key: str, default: int = None) -> int:
# get the value from the command
value = GCodeCommand.getDirectArgument(line, key, default)
# stop here if it's the default
if value == default:
return value
try:
return int(value)
except:
return default
# Parses the arguments of the command on demand, only once
def parseArguments(self):
# stop here if we don't have any remaining components
if len(self.components) <= 1:
return None
# iterate and index all of our parameters, skip the first component as it's the command
for i in range(1, len(self.components)):
# get our component
component = self.components[i]
# get the first character of the parameter, which is the name
component_name = component[0]
# get the value of the parameter (the rest of the string
component_value = None
# get our value if we have one
if len(component) > 1:
component_value = component[1:]
# index the argument
self.arguments[component_name] = component_value
# clear the components to we don't process again
self.components = []
# Easy function for replacing any GCODE parameter variable in a given GCODE command
@staticmethod
def replaceDirectArgument(line: str, key: str, value: str) -> str:
return re.sub(r"(^|\s)" + key + r"[\d\.]+(\s|$)", r"\1" + key + str(value) + r"\2", line)
# Resets the model back to defaults
def reset(self):
self.command = None
self.arguments = {}
# The primary ChangeAtZ class that does all the gcode editing. This was broken out into an
# independent class so it could be debugged using a standard IDE
class ChangeAtZProcessor:
# Holds our current height
currentZ = None
# Holds our current layer number
currentLayer = None
# Indicates if we're only supposed to apply our settings to a single layer or multiple layers
applyToSingleLayer = False
# Indicates if this should emit the changes as they happen to the LCD
displayChangesToLcd = False
# Indicates that this mod is still enabled (or not)
enabled = True
# Indicates if we're processing inside the target layer or not
insideTargetLayer = False
# Indicates if we have restored the previous values from before we started our pass
lastValuesRestored = False
# Indicates if the user has opted for linear move retractions or firmware retractions
linearRetraction = True
# Indicates if we're targeting by layer or height value
targetByLayer = True
# Indicates if we have injected our changed values for the given layer yet
targetValuesInjected = False
# Holds the last extrusion value, used with detecting when a retraction is made
lastE = None
# An index of our gcodes which we're monitoring
lastValues = {}
# The detected layer height from the gcode
layerHeight = None
# The target layer
targetLayer = None
# Holds the values the user has requested to change
targetValues = {}
# The target height in mm
targetZ = None
# Used to track if we've been inside our target layer yet
wasInsideTargetLayer = False
# boots up the class with defaults
def __init__(self):
self.reset()
# Modifies the given GCODE and injects the commands at the various targets
def execute(self, data):
# short cut the whole thing if we're not enabled
if not self.enabled:
return data
# our layer cursor
index = 0
for active_layer in data:
# will hold our updated gcode
modified_gcode = ""
# mark all the defaults for deletion
active_layer = self.markChangesForDeletion(active_layer)
# break apart the layer into commands
lines = active_layer.split("\n")
# evaluate each command individually
for line in lines:
# trim or command
line = line.strip()
# skip empty lines
if len(line) == 0:
continue
# update our layer number if applicable
self.processLayerNumber(line)
# update our layer height if applicable
self.processLayerHeight(line)
# check if we're at the target layer or not
self.processTargetLayer()
# process any changes to the gcode
modified_gcode += self.processLine(line)
# remove any marked defaults
modified_gcode = self.removeMarkedChanges(modified_gcode)
# append our modified line
data[index] = modified_gcode
index += 1
# return our modified gcode
return data
# Builds the restored layer settings based on the previous settings and returns the relevant GCODE lines
def getChangedLastValues(self) -> Dict[str, any]:
# capture the values that we've changed
changed = {}
# for each of our target values, get the value to restore
# no point in restoring values we haven't changed
for key in self.targetValues:
# skip target values we can't restore
if key not in self.lastValues:
continue
# save into our changed
changed[key] = self.lastValues[key]
# return our collection of changed values
return changed
# Builds the relevant display feedback for each of the values
def getDisplayChangesFromValues(self, values: Dict[str, any]) -> str:
# stop here if we're not outputting data
if not self.displayChangesToLcd:
return ""
# will hold all the default settings for the target layer
codes = []
# looking for wait for bed temp
if "bedTemp" in values:
codes.append("BedTemp: " + str(round(values["bedTemp"])))
# looking for wait for Build Volume Temperature
if "buildVolumeTemperature" in values:
codes.append("buildVolumeTemperature: " + str(round(values["buildVolumeTemperature"])))
# set our extruder one temp (if specified)
if "extruderOne" in values:
codes.append("Extruder 1 Temp: " + str(round(values["extruderOne"])))
# set our extruder two temp (if specified)
if "extruderTwo" in values:
codes.append("Extruder 2 Temp: " + str(round(values["extruderTwo"])))
# set global flow rate
if "flowrate" in values:
codes.append("Extruder A Flow Rate: " + str(values["flowrate"]))
# set extruder 0 flow rate
if "flowrateOne" in values:
codes.append("Extruder 1 Flow Rate: " + str(values["flowrateOne"]))
# set second extruder flow rate
if "flowrateTwo" in values:
codes.append("Extruder 2 Flow Rate: " + str(values["flowrateTwo"]))
# set our fan speed
if "fanSpeed" in values:
codes.append("Fan Speed: " + str(values["fanSpeed"]))
# set feedrate percentage
if "speed" in values:
codes.append("Print Speed: " + str(values["speed"]))
# set print rate percentage
if "printspeed" in values:
codes.append("Linear Print Speed: " + str(values["printspeed"]))
# set retract rate
if "retractfeedrate" in values:
codes.append("Retract Feed Rate: " + str(values["retractfeedrate"]))
# set retract length
if "retractlength" in values:
codes.append("Retract Length: " + str(values["retractlength"]))
# stop here if there's nothing to output
if len(codes) == 0:
return ""
# output our command to display the data
return "M117 " + ", ".join(codes) + "\n"
# Converts the last values to something that can be output on the LCD
def getLastDisplayValues(self) -> str:
# convert our last values to something we can output
return self.getDisplayChangesFromValues(self.getChangedLastValues())
# Converts the target values to something that can be output on the LCD
def getTargetDisplayValues(self) -> str:
# convert our target values to something we can output
return self.getDisplayChangesFromValues(self.targetValues)
# Builds the the relevant GCODE lines from the given collection of values
def getCodeFromValues(self, values: Dict[str, any]) -> str:
# will hold all the desired settings for the target layer
codes = self.getCodeLinesFromValues(values)
# stop here if there are no values that require changing
if len(codes) == 0:
return ""
# return our default block for this layer
return ";[CAZD:\n" + "\n".join(codes) + "\n;:CAZD]"
# Builds the relevant GCODE lines from the given collection of values
def getCodeLinesFromValues(self, values: Dict[str, any]) -> List[str]:
# will hold all the default settings for the target layer
codes = []
# looking for wait for bed temp
if "bedTemp" in values:
codes.append("M140 S" + str(values["bedTemp"]))
# looking for wait for Build Volume Temperature
if "buildVolumeTemperature" in values:
codes.append("M141 S" + str(values["buildVolumeTemperature"]))
# set our extruder one temp (if specified)
if "extruderOne" in values:
codes.append("M104 S" + str(values["extruderOne"]) + " T0")
# set our extruder two temp (if specified)
if "extruderTwo" in values:
codes.append("M104 S" + str(values["extruderTwo"]) + " T1")
# set our fan speed
if "fanSpeed" in values:
# convert our fan speed percentage to PWM
fan_speed = int((float(values["fanSpeed"]) / 100.0) * 255)
# add our fan speed to the defaults
codes.append("M106 S" + str(fan_speed))
# set global flow rate
if "flowrate" in values:
codes.append("M221 S" + str(values["flowrate"]))
# set extruder 0 flow rate
if "flowrateOne" in values:
codes.append("M221 S" + str(values["flowrateOne"]) + " T0")
# set second extruder flow rate
if "flowrateTwo" in values:
codes.append("M221 S" + str(values["flowrateTwo"]) + " T1")
# set feedrate percentage
if "speed" in values:
codes.append("M220 S" + str(values["speed"]) + "")
# set print rate percentage
if "printspeed" in values:
codes.append(";PRINTSPEED " + str(values["printspeed"]) + "")
# set retract rate
if "retractfeedrate" in values:
if self.linearRetraction:
codes.append(";RETRACTFEEDRATE " + str(values["retractfeedrate"] * 60) + "")
else:
codes.append("M207 F" + str(values["retractfeedrate"] * 60) + "")
# set retract length
if "retractlength" in values:
if self.linearRetraction:
codes.append(";RETRACTLENGTH " + str(values["retractlength"]) + "")
else:
codes.append("M207 S" + str(values["retractlength"]) + "")
return codes
# Builds the restored layer settings based on the previous settings and returns the relevant GCODE lines
def getLastValues(self) -> str:
# build the gcode to restore our last values
return self.getCodeFromValues(self.getChangedLastValues())
# Builds the gcode to inject either the changed values we want or restore the previous values
def getInjectCode(self) -> str:
# if we're now outside of our target layer and haven't restored our last values, do so now
if not self.insideTargetLayer and self.wasInsideTargetLayer and not self.lastValuesRestored:
# mark that we've injected the last values
self.lastValuesRestored = True
# inject the defaults
return self.getLastValues() + "\n" + self.getLastDisplayValues()
# if we're inside our target layer but haven't added our values yet, do so now
if self.insideTargetLayer and not self.targetValuesInjected:
# mark that we've injected the target values
self.targetValuesInjected = True
# inject the defaults
return self.getTargetValues() + "\n" + self.getTargetDisplayValues()
# nothing to do
return ""
# Returns the unmodified GCODE line from previous ChangeAtZ edits
@staticmethod
def getOriginalLine(line: str) -> str:
# get the change at z original (cazo) details
original_line = re.search(r"\[CAZO:(.*?):CAZO\]", line)
# if we didn't get a hit, this is the original line
if original_line is None:
return line
return original_line.group(1)
# Builds the target layer settings based on the specified values and returns the relevant GCODE lines
def getTargetValues(self) -> str:
# build the gcode to change our current values
return self.getCodeFromValues(self.targetValues)
# Determines if the current line is at or below the target required to start modifying
def isTargetLayerOrHeight(self) -> bool:
# target selected by layer no.
if self.targetByLayer:
# if we don't have a current layer, we're not there yet
if self.currentLayer is None:
return False
# if we're applying to a single layer, stop if our layer is not identical
if self.applyToSingleLayer:
return self.currentLayer == self.targetLayer
else:
return self.currentLayer >= self.targetLayer
else:
# if we don't have a current Z, we're not there yet
if self.currentZ is None:
return False
# if we're applying to a single layer, stop if our Z is not identical
if self.applyToSingleLayer:
return self.currentZ == self.targetZ
else:
return self.currentZ >= self.targetZ
# Marks any current ChangeAtZ layer defaults in the layer for deletion
@staticmethod
def markChangesForDeletion(layer: str):
return re.sub(r";\[CAZD:", ";[CAZD:DELETE:", layer)
# Grabs the current height
def processLayerHeight(self, line: str):
# stop here if we haven't entered a layer yet
if self.currentLayer is None:
return
# get our gcode command
command = GCodeCommand.getFromLine(line)
# skip if it's not a command we're interested in
if command is None:
return
# stop here if this isn't a linear move command
if command.command != "G0" and command.command != "G1":
return
# get our value from the command
current_z = command.getArgumentAsFloat("Z", None)
# stop here if we don't have a Z value defined, we can't get the height from this command
if current_z is None:
return
# stop if there's no change
if current_z == self.currentZ:
return
# set our current Z value
self.currentZ = current_z
# if we don't have a layer height yet, set it based on the current Z value
if self.layerHeight is None:
self.layerHeight = self.currentZ
# Grabs the current layer number
def processLayerNumber(self, line: str):
# if this isn't a layer comment, stop here, nothing to update
if ";LAYER:" not in line:
return
# get our current layer number
current_layer = GCodeCommand.getDirectArgumentAsInt(line, ";LAYER:", None)
# this should never happen, but if our layer number hasn't changed, stop here
if current_layer == self.currentLayer:
return
# update our current layer
self.currentLayer = current_layer
# Makes any linear move changes and also injects either target or restored values depending on the plugin state
def processLine(self, line: str) -> str:
# used to change the given line of code
modified_gcode = ""
# track any values that we may be interested in
self.trackChangeableValues(line)
# if we're not inside the target layer, simply read the any
# settings we can and revert any ChangeAtZ deletions
if not self.insideTargetLayer:
# read any settings if we haven't hit our target layer yet
if not self.wasInsideTargetLayer:
self.processSetting(line)
# if we haven't hit our target yet, leave the defaults as is (unmark them for deletion)
if "[CAZD:DELETE:" in line:
line = line.replace("[CAZD:DELETE:", "[CAZD:")
# if we're targeting by Z, we want to add our values before the first linear move
if "G1 " in line or "G0 " in line:
modified_gcode += self.getInjectCode()
# modify our command if we're still inside our target layer, otherwise pass unmodified
if self.insideTargetLayer:
modified_gcode += self.processLinearMove(line) + "\n"
else:
modified_gcode += line + "\n"
# if we're targeting by layer we want to add our values just after the layer label
if ";LAYER:" in line:
modified_gcode += self.getInjectCode()
# return our changed code
return modified_gcode
# Handles any linear moves in the current line
def processLinearMove(self, line: str) -> str:
# if it's not a linear motion command we're not interested
if not ("G1 " in line or "G0 " in line):
return line
# always get our original line, otherwise the effect will be cumulative
line = self.getOriginalLine(line)
# get our command from the line
linear_command = GCodeCommand.getLinearMoveCommand(line)
# if it's not a linear move, we don't care
if linear_command is None:
return line
# get our linear move parameters
feed_rate = linear_command.arguments["F"]
x_coord = linear_command.arguments["X"]
y_coord = linear_command.arguments["Y"]
z_coord = linear_command.arguments["Z"]
extrude_length = linear_command.arguments["E"]
# set our new line to our old line
new_line = line
# handle retract length
new_line = self.processRetractLength(extrude_length, feed_rate, new_line, x_coord, y_coord, z_coord)
# handle retract feed rate
new_line = self.processRetractFeedRate(extrude_length, feed_rate, new_line, x_coord, y_coord, z_coord)
# handle print speed adjustments
if extrude_length is not None: # Only for extrusion moves.
new_line = self.processPrintSpeed(feed_rate, new_line)
# set our current extrude position
self.lastE = extrude_length if extrude_length is not None else self.lastE
# if no changes have been made, stop here
if new_line == line:
return line
# return our updated command
return self.setOriginalLine(new_line, line)
# Handles any changes to print speed for the given linear motion command
def processPrintSpeed(self, feed_rate: float, new_line: str) -> str:
# if we're not setting print speed or we don't have a feed rate, stop here
if "printspeed" not in self.targetValues or feed_rate is None:
return new_line
# get our requested print speed
print_speed = int(self.targetValues["printspeed"])
# if they requested no change to print speed (ie: 100%), stop here
if print_speed == 100:
return new_line
# get our feed rate from the command
feed_rate = GCodeCommand.getDirectArgumentAsFloat(new_line, "F") * (float(print_speed) / 100.0)
# change our feed rate
return GCodeCommand.replaceDirectArgument(new_line, "F", feed_rate)
# Handles any changes to retraction length for the given linear motion command
def processRetractLength(self, extrude_length: float, feed_rate: float, new_line: str, x_coord: float, y_coord: float, z_coord: float) -> str:
# if we don't have a retract length in the file we can't add one
if "retractlength" not in self.lastValues or self.lastValues["retractlength"] == 0:
return new_line
# if we're not changing retraction length, stop here
if "retractlength" not in self.targetValues:
return new_line
# retractions are only F (feed rate) and E (extrude), at least in cura
if x_coord is not None or y_coord is not None or z_coord is not None:
return new_line
# since retractions require both F and E, and we don't have either, we can't process
if feed_rate is None or extrude_length is None:
return new_line
# stop here if we don't know our last extrude value
if self.lastE is None:
return new_line
# if there's no change in extrude we have nothing to change
if self.lastE == extrude_length:
return new_line
# if our last extrude was lower than our current, we're restoring, so skip
if self.lastE < extrude_length:
return new_line
# get our desired retract length
retract_length = float(self.targetValues["retractlength"])
# subtract the difference between the default and the desired
extrude_length -= (retract_length - self.lastValues["retractlength"])
# replace our extrude amount
return GCodeCommand.replaceDirectArgument(new_line, "E", extrude_length)
# Used for picking out the retract length set by Cura
def processRetractLengthSetting(self, line: str):
# skip if we're not doing linear retractions
if not self.linearRetraction:
return
# get our command from the line
linear_command = GCodeCommand.getLinearMoveCommand(line)
# if it's not a linear move, we don't care
if linear_command is None:
return
# get our linear move parameters
feed_rate = linear_command.arguments["F"]
x_coord = linear_command.arguments["X"]
y_coord = linear_command.arguments["Y"]
z_coord = linear_command.arguments["Z"]
extrude_length = linear_command.arguments["E"]
# the command we're looking for only has extrude and feed rate
if x_coord is not None or y_coord is not None or z_coord is not None:
return
# if either extrude or feed is missing we're likely looking at the wrong command
if extrude_length is None or feed_rate is None:
return
# cura stores the retract length as a negative E just before it starts printing
extrude_length = extrude_length * -1
# if it's a negative extrude after being inverted, it's not our retract length
if extrude_length < 0:
return
# what ever the last negative retract length is it wins
self.lastValues["retractlength"] = extrude_length
# Handles any changes to retraction feed rate for the given linear motion command
def processRetractFeedRate(self, extrude_length: float, feed_rate: float, new_line: str, x_coord: float, y_coord: float, z_coord: float) -> str:
# skip if we're not doing linear retractions
if not self.linearRetraction:
return new_line
# if we're not changing retraction length, stop here
if "retractfeedrate" not in self.targetValues:
return new_line
# retractions are only F (feed rate) and E (extrude), at least in cura
if x_coord is not None or y_coord is not None or z_coord is not None:
return new_line
# since retractions require both F and E, and we don't have either, we can't process
if feed_rate is None or extrude_length is None:
return new_line
# get our desired retract feed rate
retract_feed_rate = float(self.targetValues["retractfeedrate"])
# convert to units/min
retract_feed_rate *= 60
# replace our feed rate
return GCodeCommand.replaceDirectArgument(new_line, "F", retract_feed_rate)
# Used for finding settings in the print file before we process anything else
def processSetting(self, line: str):
# if we're in layers already we're out of settings
if self.currentLayer is not None:
return
# check our retract length
self.processRetractLengthSetting(line)
# Sets the flags if we're at the target layer or not
def processTargetLayer(self):
# skip this line if we're not there yet
if not self.isTargetLayerOrHeight():
# flag that we're outside our target layer
self.insideTargetLayer = False
# skip to the next line
return
# flip if we hit our target layer
self.wasInsideTargetLayer = True
# flag that we're inside our target layer
self.insideTargetLayer = True
# Removes all the ChangeAtZ layer defaults from the given layer
@staticmethod
def removeMarkedChanges(layer: str) -> str:
return re.sub(r";\[CAZD:DELETE:[\s\S]+?:CAZD\](\n|$)", "", layer)
# Resets the class contents to defaults
def reset(self):
self.targetValues = {}
self.applyToSingleLayer = False
self.lastE = None
self.currentZ = None
self.currentLayer = None
self.targetByLayer = True
self.targetLayer = None
self.targetZ = None
self.layerHeight = None
self.lastValues = {"speed": 100}
self.linearRetraction = True
self.insideTargetLayer = False
self.targetValuesInjected = False
self.lastValuesRestored = False
self.wasInsideTargetLayer = False
self.enabled = True
# Sets the original GCODE line in a given GCODE command
@staticmethod
def setOriginalLine(line, original) -> str:
return line + ";[CAZO:" + original + ":CAZO]"
# Tracks the change in gcode values we're interested in
def trackChangeableValues(self, line: str):
# simulate a print speed command
if ";PRINTSPEED" in line:
line = line.replace(";PRINTSPEED ", "M220 S")
# simulate a retract feedrate command
if ";RETRACTFEEDRATE" in line:
line = line.replace(";RETRACTFEEDRATE ", "M207 F")
# simulate a retract length command
if ";RETRACTLENGTH" in line:
line = line.replace(";RETRACTLENGTH ", "M207 S")
# get our gcode command
command = GCodeCommand.getFromLine(line)
# stop here if it isn't a G or M command
if command is None:
return
# handle retract length changes
if command.command == "M207":
# get our retract length if provided
if "S" in command.arguments:
self.lastValues["retractlength"] = command.getArgumentAsFloat("S")
# get our retract feedrate if provided, convert from mm/m to mm/s
if "F" in command.arguments:
self.lastValues["retractfeedrate"] = command.getArgumentAsFloat("F") / 60.0
# move to the next command
return
# handle bed temp changes
if command.command == "M140" or command.command == "M190":
# get our bed temp if provided
if "S" in command.arguments:
self.lastValues["bedTemp"] = command.getArgumentAsFloat("S")
# move to the next command
return
# handle Build Volume Temperature changes, really shouldn't want to wait for enclousure temp mid print though.
if command.command == "M141" or command.command == "M191":
# get our bed temp if provided
if "S" in command.arguments:
self.lastValues["buildVolumeTemperature"] = command.getArgumentAsFloat("S")
# move to the next command
return
# handle extruder temp changes
if command.command == "M104" or command.command == "M109":
# get our temperature
temperature = command.getArgumentAsFloat("S")
# don't bother if we don't have a temperature
if temperature is None:
return
# get our extruder, default to extruder one
extruder = command.getArgumentAsInt("T", None)
# set our extruder temp based on the extruder
if extruder is None or extruder == 0:
self.lastValues["extruderOne"] = temperature
if extruder is None or extruder == 1:
self.lastValues["extruderTwo"] = temperature
# move to the next command
return
# handle fan speed changes
if command.command == "M106":
# get our bed temp if provided
if "S" in command.arguments:
self.lastValues["fanSpeed"] = (command.getArgumentAsInt("S") / 255.0) * 100
# move to the next command
return
# handle flow rate changes
if command.command == "M221":
# get our flow rate
temperature = command.getArgumentAsFloat("S")
# don't bother if we don't have a flow rate (for some reason)
if temperature is None:
return
# get our extruder, default to global
extruder = command.getArgumentAsInt("T", None)
# set our extruder temp based on the extruder
if extruder is None:
self.lastValues["flowrate"] = temperature
elif extruder == 1:
self.lastValues["flowrateOne"] = temperature
elif extruder == 1:
self.lastValues["flowrateTwo"] = temperature
# move to the next command
return
# handle print speed changes
if command.command == "M220":
# get our speed if provided
if "S" in command.arguments:
self.lastValues["speed"] = command.getArgumentAsInt("S")
# move to the next command
return
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