klipper-dgus/klippy/extras/firmware_retraction.py

73 lines
3.3 KiB
Python

# Support for Marlin/Smoothie/Reprap style firmware retraction via G10/G11
#
# Copyright (C) 2019 Len Trigg <lenbok@gmail.com>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
class FirmwareRetraction:
def __init__(self, config):
self.printer = config.get_printer()
self.retract_length = config.getfloat('retract_length', 0., minval=0.)
self.retract_speed = config.getfloat('retract_speed', 20., minval=1)
self.unretract_extra_length = config.getfloat(
'unretract_extra_length', 0., minval=0.)
self.unretract_speed = config.getfloat('unretract_speed', 10., minval=1)
self.unretract_length = (self.retract_length
+ self.unretract_extra_length)
self.is_retracted = False
self.gcode = self.printer.lookup_object('gcode')
self.gcode.register_command('SET_RETRACTION', self.cmd_SET_RETRACTION)
self.gcode.register_command('GET_RETRACTION', self.cmd_GET_RETRACTION)
self.gcode.register_command('G10', self.cmd_G10)
self.gcode.register_command('G11', self.cmd_G11)
def get_status(self, eventtime):
return {
"retract_length": self.retract_length,
"retract_speed": self.retract_speed,
"unretract_extra_length": self.unretract_extra_length,
"unretract_speed": self.unretract_speed,
}
def cmd_SET_RETRACTION(self, gcmd):
self.retract_length = gcmd.get_float('RETRACT_LENGTH',
self.retract_length, minval=0.)
self.retract_speed = gcmd.get_float('RETRACT_SPEED',
self.retract_speed, minval=1)
self.unretract_extra_length = gcmd.get_float(
'UNRETRACT_EXTRA_LENGTH', self.unretract_extra_length, minval=0.)
self.unretract_speed = gcmd.get_float('UNRETRACT_SPEED',
self.unretract_speed, minval=1)
self.unretract_length = (self.retract_length
+ self.unretract_extra_length)
self.is_retracted = False
def cmd_GET_RETRACTION(self, gcmd):
gcmd.respond_info("RETRACT_LENGTH=%.5f RETRACT_SPEED=%.5f"
" UNRETRACT_EXTRA_LENGTH=%.5f UNRETRACT_SPEED=%.5f"
% (self.retract_length, self.retract_speed,
self.unretract_extra_length, self.unretract_speed))
def cmd_G10(self, gcmd):
if not self.is_retracted:
self.gcode.run_script_from_command(
"SAVE_GCODE_STATE NAME=_retract_state\n"
"G91\n"
"G1 E-%.5f F%d\n"
"RESTORE_GCODE_STATE NAME=_retract_state"
% (self.retract_length, self.retract_speed*60))
self.is_retracted = True
def cmd_G11(self, gcmd):
if self.is_retracted:
self.gcode.run_script_from_command(
"SAVE_GCODE_STATE NAME=_retract_state\n"
"G91\n"
"G1 E%.5f F%d\n"
"RESTORE_GCODE_STATE NAME=_retract_state"
% (self.unretract_length, self.unretract_speed*60))
self.is_retracted = False
def load_config(config):
return FirmwareRetraction(config)