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extruder: Add an ACTIVATE_EXTRUDER command

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Add support for an extended g-code command to change the currently
active extruder.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-11-24 19:43:50 -05:00
parent ab2d302b7e
commit c06618193d
3 changed files with 22 additions and 0 deletions
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13
klippy/kinematics/extruder.py
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@ -73,6 +73,9 @@ class PrinterExtruder:
gcode.register_mux_command("SET_PRESSURE_ADVANCE", "EXTRUDER",
self.name, self.cmd_SET_PRESSURE_ADVANCE,
desc=self.cmd_SET_PRESSURE_ADVANCE_help)
gcode.register_mux_command("ACTIVATE_EXTRUDER", "EXTRUDER",
self.name, self.cmd_ACTIVATE_EXTRUDER,
desc=self.cmd_ACTIVATE_EXTRUDER_help)
def update_move_time(self, flush_time):
self.trapq_free_moves(self.trapq, flush_time)
def _set_pressure_advance(self, pressure_advance, smooth_time):
@ -168,6 +171,16 @@ class PrinterExtruder:
pressure_advance, smooth_time))
self.printer.set_rollover_info(self.name, "%s: %s" % (self.name, msg))
gcode.respond_info(msg, log=False)
cmd_ACTIVATE_EXTRUDER_help = "Change the active extruder"
def cmd_ACTIVATE_EXTRUDER(self, params):
gcode = self.printer.lookup_object('gcode')
toolhead = self.printer.lookup_object('toolhead')
if toolhead.get_extruder() is self:
gcode.respond_info("Extruder %s already active" % (self.name))
return
gcode.respond_info("Activating extruder %s" % (self.name))
toolhead.set_extruder(self, self.extrude_pos)
self.printer.send_event("extruder:activate_extruder")
# Dummy extruder class used when a printer has no extruder at all
class DummyExtruder: