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####################################################################################################
#
# PythonicGcodeMachine - A Python G-code Toolkit
# Copyright (C) 2018 Fabrice Salvaire
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
####################################################################################################
"""Module to implement a basic G-code machine.
"""
####################################################################################################
__all__ = [
'MachineState',
]
####################################################################################################
from enum import Enum, auto
from .Coordinate import Coordinate
from .ToolSet import ToolSet
####################################################################################################
class PlaneSelection:
XY = auto()
XZ = auto()
YZ = auto()
class FeedRateMode:
UNITS_PER_MINUTE = auto()
INVERSE_TIME = auto()
####################################################################################################
class MachineState:
NUMBER_OF_COORDINATE_SYSTEMS = 9
##############################################
def __init__(self,
number_of_axes,
is_metric=True,
):
self._number_of_axes = int(number_of_axes)
self._coordinate = Coordinate(dimension=self._number_of_axes)
self._tool_set = ToolSet()
self._tool = None # T
self._is_metric = bool(is_metric)
self._use_metric = self._is_metric # G20 inch / G21 mm
self._use_absolut = True # G90 absolut / G91 incremental
# G17 XY-plane selection
# G18 XZ-plane selection
# G19 YZ-plane selection
self._plane = None
# G54 G55 G56 G57 G58 G59 G59.1 G59.2 G59.3
self._coordinate_system = None
self._feed_rate = 0 # F
# G93 units per minute
# G94 inverse time
self._feed_rate_mode = FeedRateMode.UNITS_PER_MINUTE
self._spindle_rate = 0 # S
### 4 M0 M1 M2 M30 M60 stopping
### 6 M6 tool change
### 7 M3 M4 M5 spindle turning
### 8 M7 M8 M9 coolant (special case: M7 and M8 may be active at the same time)
### 9 M48 M49 enable/disable feed and speed override switches
### 10 G98 G99 return mode in canned cycles
### 13 G61 G61.1 G64 path control mode
##############################################
@property
def number_of_axes(self):
return self._number_of_axes
@property
def coordinate(self):
return self._coordinate
##############################################
@property
def is_metric(self):
return self._is_metric
@property
def use_metric(self):
return self._use_metric
@use_metric.setter
def use_metric(self, value):
self._use_metric = bool(value)
##############################################
@property
def use_absolut(self):
return self._use_absolut
@use_absolut.setter
def use_absolut(self, value):
self._use_absolut = bool(value)
##############################################
@property
def plane(self):
return self._plane
@plane.setter
def plane(self, value):
self._plane = PlaneSelection(value)
##############################################
@property
def coordinate_system(self):
return self._coordinate_system
@coordinate_system.setter
def coordinate_system(self, value):
_value = int(value)
if not(1 <= _value <= self.NUMBER_OF_COORDINATE_SYSTEMS):
raise ValueError('Invalid coordinate system {}'.format(value))
self._coordinate_system = _value
##############################################
@property
def tool_set(self):
return self._tool_set
def load_tool(self, pocket):
"""Load the tool at the given carousel pocket.
Raise ValueError if KeyError.
"""
self._tool.toggle_loaded()
try:
self._tool = self._tool_set[pocket].toggle_loaded()
except KeyError:
raise ValueError('Invalid carousel pocket {}'.format(pocket))
##############################################
@property
def feed_rate(self):
return self._feed_rate
@feed_rate.setter
def feed_rate(self, value):
# negative feedback ?
self._feed_rate = float(value)
@property
def feed_rate_mode(self):
return self._feed_rate_mode
@feed_rate_mode.setter
def feed_rate_mode(self, value):
self._feed_rate_mode = FeedRateMode(value)
##############################################
@property
def spindle_rate(self):
return self._spindle_rate
@spindle_rate.setter
def spindle_rate(self, value):
_value = float(value)
if _value < 0:
raise ValueError('Negative spindle rate {}'.format(value))
self._spindle_rate = _value