Cura/util/gcodeGenerator.py

   1 from __future__ import absolute_import
   2
   3 import math
   4
   5 from Cura.util import profile
   6
   7 class gcodeGenerator(object):
   8         def __init__(self):
   9                 self._feedPrint = profile.getProfileSettingFloat('print_speed') * 60
  10                 self._feedTravel = profile.getProfileSettingFloat('travel_speed') * 60
  11                 self._feedRetract = profile.getProfileSettingFloat('retraction_speed') * 60
  12                 filamentRadius = profile.getProfileSettingFloat('filament_diameter') / 2
  13                 filamentArea = math.pi * filamentRadius * filamentRadius
  14                 self._ePerMM = (profile.getProfileSettingFloat('nozzle_size') * 0.1) / filamentArea
  15                 self._eValue = 0.0
  16                 self._x = 0
  17                 self._y = 0
  18                 self._z = 0
  19
  20                 self._list = ['G92 E0']
  21
  22         def setExtrusionRate(self, lineWidth, layerHeight):
  23                 filamentRadius = profile.getProfileSettingFloat('filament_diameter') / 2
  24                 filamentArea = math.pi * filamentRadius * filamentRadius
  25                 self._ePerMM = (lineWidth * layerHeight) / filamentArea
  26
  27         def home(self):
  28                 self._x = 0
  29                 self._y = 0
  30                 self._z = 0
  31                 self._list += ['G28']
  32
  33         def addMove(self, x=None, y=None, z=None):
  34                 cmd = "G0 "
  35                 if x is not None:
  36                         cmd += "X%f " % (x)
  37                         self._x = x
  38                 if y is not None:
  39                         cmd += "Y%f " % (y)
  40                         self._y = y
  41                 if z is not None:
  42                         cmd += "Z%f " % (z)
  43                         self._z = z
  44                 cmd += "F%d" % (self._feedTravel)
  45                 self._list += [cmd]
  46
  47         def addPrime(self, amount=5):
  48                 self._eValue += amount
  49                 self._list += ['G1 E%f F%f' % (self._eValue, self._feedRetract)]
  50
  51         def addRetract(self, amount=5):
  52                 self._eValue -= amount
  53                 self._list += ['G1 E%f F%f' % (self._eValue, self._feedRetract)]
  54
  55         def addExtrude(self, x=None, y=None, z=None):
  56                 cmd = "G1 "
  57                 oldX = self._x
  58                 oldY = self._y
  59                 if x is not None:
  60                         cmd += "X%f " % (x)
  61                         self._x = x
  62                 if y is not None:
  63                         cmd += "Y%f " % (y)
  64                         self._y = y
  65                 if z is not None:
  66                         cmd += "Z%f " % (z)
  67                         self._z = z
  68                 self._eValue += math.sqrt((self._x - oldX) * (self._x - oldX) + (self._y - oldY) * (self._y - oldY)) * self._ePerMM
  69                 cmd += "E%f F%d" % (self._eValue, self._feedPrint)
  70                 self._list += [cmd]
  71
  72         def addCmd(self, cmd):
  73                 self._list += [cmd]
  74
  75         def list(self):
  76                 return self._list