gcode: Support running arbitrary gcode on extruder change
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
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72dc21fb1a
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d093200966
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@ -150,6 +150,18 @@ filament_diameter: 3.500
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# otherwise cause retraction followed immediately by pressure
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# otherwise cause retraction followed immediately by pressure
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# buildup. This setting only applies if pressure_advance is
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# buildup. This setting only applies if pressure_advance is
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# non-zero. The default is 0.010 (10 milliseconds).
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# non-zero. The default is 0.010 (10 milliseconds).
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#deactivate_gcode:
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# A list of G-Code commands (one per line) to execute on a G-Code
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# tool change command (eg, "T1") that deactivates this extruder and
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# activates some other extruder. It only makes sense to define this
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# section on multi-extruder printers. The default is to not run any
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# special G-Code commands on deactivation.
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#activate_gcode:
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# A list of G-Code commands (one per line) to execute on a G-Code
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# tool change command (eg, "T0") that activates this extruder. It
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# only makes sense to define this section on multi-extruder
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# printers. The default is to not run any special G-Code commands on
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# activation.
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#
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#
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# The remaining variables describe the extruder heater.
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# The remaining variables describe the extruder heater.
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heater_pin: ar4
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heater_pin: ar4
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@ -24,6 +24,8 @@ class PrinterExtruder:
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self.max_e_dist = config.getfloat(
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self.max_e_dist = config.getfloat(
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'max_extrude_only_distance', 50., minval=0.)
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'max_extrude_only_distance', 50., minval=0.)
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self.max_e_velocity = self.max_e_accel = None
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self.max_e_velocity = self.max_e_accel = None
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self.activate_gcode = config.get('activate_gcode', '')
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self.deactivate_gcode = config.get('deactivate_gcode', '')
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self.pressure_advance = config.getfloat(
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self.pressure_advance = config.getfloat(
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'pressure_advance', 0., minval=0.)
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'pressure_advance', 0., minval=0.)
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self.pressure_advance_lookahead_time = 0.
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self.pressure_advance_lookahead_time = 0.
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@ -44,6 +46,10 @@ class PrinterExtruder:
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return self.heater
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return self.heater
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def set_active(self, print_time, is_active):
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def set_active(self, print_time, is_active):
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return self.extrude_pos
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return self.extrude_pos
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def get_activate_gcode(self, is_active):
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if is_active:
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return self.activate_gcode
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return self.deactivate_gcode
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def motor_off(self, move_time):
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def motor_off(self, move_time):
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self.stepper.motor_enable(move_time, 0)
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self.stepper.motor_enable(move_time, 0)
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self.need_motor_enable = True
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self.need_motor_enable = True
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@ -19,7 +19,7 @@ class GCodeParser:
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self.fd_handle = None
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self.fd_handle = None
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if not is_fileinput:
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if not is_fileinput:
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self.fd_handle = self.reactor.register_fd(self.fd, self.process_data)
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self.fd_handle = self.reactor.register_fd(self.fd, self.process_data)
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self.input_commands = [""]
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self.partial_input = ""
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self.bytes_read = 0
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self.bytes_read = 0
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self.input_log = collections.deque([], 50)
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self.input_log = collections.deque([], 50)
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# Command handling
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# Command handling
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@ -82,9 +82,9 @@ class GCodeParser:
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logging.info("Read %f: %s" % (eventtime, repr(data)))
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logging.info("Read %f: %s" % (eventtime, repr(data)))
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# Parse input into commands
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# Parse input into commands
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args_r = re.compile('([a-zA-Z_]+|[a-zA-Z*])')
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args_r = re.compile('([a-zA-Z_]+|[a-zA-Z*])')
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def process_commands(self, eventtime):
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def process_commands(self, commands, need_ack=True):
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while len(self.input_commands) > 1:
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prev_need_ack = self.need_ack
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line = self.input_commands.pop(0)
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for line in commands:
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# Ignore comments and leading/trailing spaces
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# Ignore comments and leading/trailing spaces
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line = origline = line.strip()
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line = origline = line.strip()
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cpos = line.find(';')
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cpos = line.find(';')
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@ -103,7 +103,7 @@ class GCodeParser:
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continue
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continue
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params['#command'] = cmd = parts[0].upper() + parts[1].strip()
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params['#command'] = cmd = parts[0].upper() + parts[1].strip()
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# Invoke handler for command
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# Invoke handler for command
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self.need_ack = True
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self.need_ack = need_ack
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handler = self.gcode_handlers.get(cmd, self.cmd_default)
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handler = self.gcode_handlers.get(cmd, self.cmd_default)
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try:
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try:
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handler(params)
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handler(params)
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@ -117,15 +117,16 @@ class GCodeParser:
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self.printer.request_exit('exit_eof')
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self.printer.request_exit('exit_eof')
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break
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break
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self.ack()
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self.ack()
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self.need_ack = prev_need_ack
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def process_data(self, eventtime):
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def process_data(self, eventtime):
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data = os.read(self.fd, 4096)
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data = os.read(self.fd, 4096)
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self.input_log.append((eventtime, data))
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self.input_log.append((eventtime, data))
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self.bytes_read += len(data)
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self.bytes_read += len(data)
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lines = data.split('\n')
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lines = data.split('\n')
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lines[0] = self.input_commands.pop() + lines[0]
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lines[0] = self.partial_input + lines[0]
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self.input_commands.extend(lines)
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self.partial_input = lines.pop()
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if self.is_processing_data:
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if self.is_processing_data:
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if len(lines) <= 1:
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if not lines:
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return
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return
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if not self.is_fileinput and lines[0].strip().upper() == 'M112':
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if not self.is_fileinput and lines[0].strip().upper() == 'M112':
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self.cmd_M112({})
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self.cmd_M112({})
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@ -133,7 +134,7 @@ class GCodeParser:
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self.fd_handle = None
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self.fd_handle = None
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return
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return
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self.is_processing_data = True
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self.is_processing_data = True
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self.process_commands(eventtime)
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self.process_commands(lines)
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self.is_processing_data = False
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self.is_processing_data = False
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if self.fd_handle is None:
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if self.fd_handle is None:
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self.fd_handle = self.reactor.register_fd(self.fd, self.process_data)
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self.fd_handle = self.reactor.register_fd(self.fd, self.process_data)
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@ -259,6 +260,8 @@ class GCodeParser:
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e = extruders[index]
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e = extruders[index]
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if self.extruder is e:
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if self.extruder is e:
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return
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return
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deactivate_gcode = self.extruder.get_activate_gcode(False)
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self.process_commands(deactivate_gcode.split('\n'), need_ack=False)
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try:
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try:
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self.toolhead.set_extruder(e)
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self.toolhead.set_extruder(e)
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except homing.EndstopError, e:
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except homing.EndstopError, e:
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@ -266,6 +269,8 @@ class GCodeParser:
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return
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return
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self.extruder = e
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self.extruder = e
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self.last_position = self.toolhead.get_position()
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self.last_position = self.toolhead.get_position()
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activate_gcode = self.extruder.get_activate_gcode(True)
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self.process_commands(activate_gcode.split('\n'), need_ack=False)
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all_handlers = [
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all_handlers = [
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'G1', 'G4', 'G20', 'G28', 'G90', 'G91', 'G92',
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'G1', 'G4', 'G20', 'G28', 'G90', 'G91', 'G92',
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'M82', 'M83', 'M18', 'M105', 'M104', 'M109', 'M112', 'M114', 'M115',
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'M82', 'M83', 'M18', 'M105', 'M104', 'M109', 'M112', 'M114', 'M115',
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