- added a new preprocessor by Georg Ziegler, used with a laser (cleaned it for PEP8)
This commit is contained in:
Marius Stanciu
148
preprocessors/grbl_laser_eleks_drd.py
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148
preprocessors/grbl_laser_eleks_drd.py
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# ########################################################## ##
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# FlatCAM: 2D Post-processing for Manufacturing #
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# http://flatcam.org #
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# File Author: Georg Ziegler #
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# Date: 1/16/2021 #
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# MIT Licence #
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# ########################################################## ##
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from appPreProcessor import *
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# This post processor is configured to output code for
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# lasers without Z Axis
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# and to convert excellon drillcodes into arcs
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# So after etching we have small holes in the copper plane
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# which helps for centering the drill bit for manual drilling
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# So the GRBL Controller has to support G2 commands
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class grbl_laser_eleks_drd(PreProc):
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include_header = True
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coordinate_format = "%.*f"
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feedrate_format = '%.*f'
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def start_code(self, p):
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units = ' ' + str(p['units']).lower()
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gcode = ''
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xmin = '%.*f' % (p.coords_decimals, p['options']['xmin'])
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xmax = '%.*f' % (p.coords_decimals, p['options']['xmax'])
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ymin = '%.*f' % (p.coords_decimals, p['options']['ymin'])
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ymax = '%.*f' % (p.coords_decimals, p['options']['ymax'])
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gcode += '(Feedrate: ' + str(p['feedrate']) + units + '/min' + ')\n'
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gcode += '(Feedrate rapids ' + str(p['feedrate_rapid']) + units + '/min' + ')\n'
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gcode += '(Steps per circle: ' + str(p['steps_per_circle']) + ')\n'
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if str(p['options']['type']) == 'Excellon' or str(p['options']['type']) == 'Excellon Geometry':
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gcode += '(Preprocessor Excellon: ' + str(p['pp_excellon_name']) + ')\n'
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else:
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gcode += '(Preprocessor Geometry: ' + str(p['pp_geometry_name']) + ')\n'
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gcode += '(X range: ' + '{: >9s}'.format(xmin) + ' ... ' + '{: >9s}'.format(xmax) + ' ' + units + ')\n'
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gcode += '(Y range: ' + '{: >9s}'.format(ymin) + ' ... ' + '{: >9s}'.format(ymax) + ' ' + units + ')\n'
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gcode += '\n'
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if p.units.upper() == 'IN':
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gcode += 'G20;Inch Units\n'
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else:
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gcode += 'G21;Millimeter Units\n'
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gcode += 'G90;Absolute Positioning\n'
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# gcode += 'G17;Select Plane XY\n'
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# gcode += 'G94;Feedrate per minute\n'
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gcode += 'G00 F' + str(self.feedrate_format % (p.fr_decimals, p.feedrate_rapid)) + '\n'
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gcode += 'G01 F' + str(self.feedrate_format % (p.fr_decimals, p.feedrate)) + '\n' # Is Z-Feedrate for Excellon
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if p.spindledir == 'CCW':
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gcode += 'M04'
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else:
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gcode += 'M03'
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if p.spindlespeed:
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gcode += ' ' + 'S%d' % p.spindlespeed
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gcode += ';' + p.spindledir
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return gcode
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def startz_code(self, p):
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return ';startz'
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def lift_code(self, p):
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return 'M05;lift'
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def down_code(self, p):
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if p.spindledir == 'CCW':
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gcode = 'M04'
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else:
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gcode = 'M03'
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gcode += ';down'
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if str(p['options']['type']) == 'Excellon' or str(p['options']['type']) == 'Excellon Geometry':
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gcode += '\n'
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gcode += 'G02 ' # Draw Top Little Arc
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gcode += ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, p.x + 0.1, p.coords_decimals, p.y)
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gcode += (' I' + self.coordinate_format + ' J' + self.coordinate_format) % \
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(p.coords_decimals, +0.1, p.coords_decimals, 0)
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gcode += '\n'
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gcode += 'G02 ' # Draw Bottom Little Arc
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gcode += ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, p.x - 0.1, p.coords_decimals, p.y)
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gcode += (' I' + self.coordinate_format + ' J' + self.coordinate_format) % \
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(p.coords_decimals, -0.1, p.coords_decimals, 0)
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gcode += '\n'
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gcode += 'G00 ' + (self.position_ldob_code(p)).format(**p)
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gcode += '\n'
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gcode += 'G02 ' # Draw Top Bigger Arc
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gcode += ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, p.x + 0.2, p.coords_decimals, p.y)
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gcode += (' I' + self.coordinate_format + ' J' + self.coordinate_format) % \
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(p.coords_decimals, +0.2, p.coords_decimals, 0)
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gcode += '\n'
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gcode += 'G02 ' # Draw Bottom Bigger Arc
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gcode += ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, p.x - 0.2, p.coords_decimals, p.y)
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gcode += (' I' + self.coordinate_format + ' J' + self.coordinate_format) % \
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(p.coords_decimals, -0.2, p.coords_decimals, 0)
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return gcode
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def toolchange_code(self, p):
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return ';toolchange'
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def up_to_zero_code(self, p): # Only use for drilling, so no essentialy need for Laser
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return ';up_to_zero'
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def position_code(self, p):
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return ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, p.x, p.coords_decimals, p.y)
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def position_ldos_code(self, p):
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return ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, p.x-0.1, p.coords_decimals, p.y) # -0.1 : ArcRadius Offset for smaller DrillHole Arc
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def position_ldob_code(self, p):
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return ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, p.x-0.2, p.coords_decimals, p.y) # -0.1 : ArcRadius Offset for bigger DrillHole Arc
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def rapid_code(self, p):
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gcode = 'G00 '
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if str(p['options']['type']) == 'Excellon' or str(p['options']['type']) == 'Excellon Geometry':
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gcode += (self.position_ldos_code(p)).format(**p)
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else:
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gcode += (self.position_code(p)).format(**p)
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return gcode
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def linear_code(self, p):
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return 'G01 ' + (self.position_code(p)).format(**p)
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def end_code(self, p):
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gcode = ''
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coords_xy = p['xy_toolchange']
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if coords_xy is not None:
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gcode = 'G00 X{x} Y{y}'.format(x=coords_xy[0], y=coords_xy[1])
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return gcode
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def feedrate_code(self, p):
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return ';feedrate'
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def z_feedrate_code(self, p):
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return ';z_feedrate'
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def spindle_code(self, p):
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return ';spindle'
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def dwell_code(self, p):
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return ';dwell'
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def spindle_stop_code(self, p):
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return ';spindle_stop '
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