105 lines
4.5 KiB
Python
105 lines
4.5 KiB
Python
# Helper script to adjust parameters based on Z level
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#
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# Copyright (C) 2019 Kevin O'Connor <kevin@koconnor.net>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import math, logging
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CANCEL_Z_DELTA=2.0
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class TuningTower:
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def __init__(self, config):
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self.printer = config.get_printer()
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self.normal_transform = None
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self.last_position = [0., 0., 0., 0.]
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self.last_z = self.start = self.factor = self.band = 0.
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self.last_command_value = None
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self.command_fmt = ""
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self.gcode_move = self.printer.load_object(config, "gcode_move")
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# Register command
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self.gcode = self.printer.lookup_object("gcode")
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self.gcode.register_command("TUNING_TOWER", self.cmd_TUNING_TOWER,
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desc=self.cmd_TUNING_TOWER_help)
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cmd_TUNING_TOWER_help = "Tool to adjust a parameter at each Z height"
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def cmd_TUNING_TOWER(self, gcmd):
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if self.normal_transform is not None:
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self.end_test()
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# Get parameters
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command = gcmd.get('COMMAND')
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parameter = gcmd.get('PARAMETER')
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self.start = gcmd.get_float('START', 0.)
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self.factor = gcmd.get_float('FACTOR', 0.)
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self.band = gcmd.get_float('BAND', 0., minval=0.)
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self.step_delta = gcmd.get_float('STEP_DELTA', 0.)
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self.step_height = gcmd.get_float('STEP_HEIGHT', 0., minval=0.)
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self.skip = gcmd.get_float('SKIP', 0., minval=0.)
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if self.factor and (self.step_height or self.step_delta):
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raise gcmd.error(
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"Cannot specify both FACTOR and STEP_DELTA/STEP_HEIGHT")
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if (self.step_delta != 0.) != (self.step_height != 0.):
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raise gcmd.error("Must specify both STEP_DELTA and STEP_HEIGHT")
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# Enable test mode
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if self.gcode.is_traditional_gcode(command):
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self.command_fmt = "%s %s%%.9f" % (command, parameter)
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else:
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self.command_fmt = "%s %s=%%.9f" % (command, parameter)
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nt = self.gcode_move.set_move_transform(self, force=True)
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self.normal_transform = nt
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self.last_z = -99999999.9
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self.last_command_value = None
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self.get_position()
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message_parts = []
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message_parts.append("start=%.6f" % (self.start,))
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if self.factor:
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message_parts.append("factor=%.6f" % (self.factor,))
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if self.band:
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message_parts.append("band=%.6f" % (self.band,))
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else:
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message_parts.append("step_delta=%.6f" % (self.step_delta,))
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message_parts.append("step_height=%.6f" % (self.step_height,))
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if self.skip:
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message_parts.append("skip=%.6f" % (self.skip,))
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gcmd.respond_info(
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"Starting tuning test (" + " ".join(message_parts) + ")")
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def get_position(self):
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pos = self.normal_transform.get_position()
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self.last_position = list(pos)
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return pos
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def calc_value(self, z):
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if self.skip:
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z = max(0., z - self.skip)
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if self.step_height:
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return self.start + \
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self.step_delta * math.floor(z / self.step_height)
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if self.band:
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z = (math.floor(z / self.band) + .5) * self.band
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return self.start + z * self.factor
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def move(self, newpos, speed):
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normal_transform = self.normal_transform
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if (newpos[3] > self.last_position[3] and newpos[2] != self.last_z
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and newpos[:3] != self.last_position[:3]):
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# Extrusion move at new z height
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z = newpos[2]
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if z < self.last_z - CANCEL_Z_DELTA:
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# Extrude at a lower z height - probably start of new print
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self.end_test()
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else:
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# Process update
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gcode_z = self.gcode_move.get_status()['gcode_position'].z
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newval = self.calc_value(gcode_z)
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self.last_z = z
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if newval != self.last_command_value:
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self.last_command_value = newval
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self.gcode.run_script_from_command(self.command_fmt
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% (newval,))
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# Forward move to actual handler
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self.last_position[:] = newpos
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normal_transform.move(newpos, speed)
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def end_test(self):
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self.gcode.respond_info("Ending tuning test mode")
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self.gcode_move.set_move_transform(self.normal_transform, force=True)
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self.normal_transform = None
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def load_config(config):
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return TuningTower(config)
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