cdf6872e5e
- make sure that the laser postprocessor that do move on the Z axis (like 'GRBL_laser_Z') accept negative values for the Z focus - fixed issue in highlighter such that the keywords that have an underscore included are highlighted - rearranged the default keywords - fixed the generatecncjob() method default parameters to reflect new data structure names - in Geometry object the default self.options dictionary is updated with keys that reflect new data structure
121 lines
4.5 KiB
Python
121 lines
4.5 KiB
Python
# ##########################################################
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# FlatCAM: 2D Post-processing for Manufacturing #
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# http://flatcam.org #
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# File Author: Matthieu Berthomé #
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# Date: 5/26/2017 #
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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 that
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# is compatible with almost any version of Grbl.
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class GRBL_laser(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 = '(This preprocessor is used with a motion controller loaded with GRBL firmware. )\n'
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gcode += '(It is for the case when it is used together with a LASER connected on the SPINDLE connector.)\n' \
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'(This preprocessor makes no moves on the Z axis it will only move horizontally.)\n' \
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'(The horizontal move is done with G0 - highest possible speed set in the GRBL controller.)\n' \
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'(It assumes a manually focused laser.)\n' \
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'(The laser is started with M3 command and stopped with the M5 command.)\n\n'
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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 += '(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' + '\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\n'
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gcode += '(Laser Power - Spindle Speed: ' + str(p['spindlespeed']) + ')\n\n'
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gcode += ('G20' if p.units.upper() == 'IN' else 'G21') + "\n"
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gcode += 'G90\n'
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gcode += 'G17\n'
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gcode += 'G94'
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return gcode
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def startz_code(self, p):
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return ''
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def lift_code(self, p):
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return 'M5'
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def down_code(self, p):
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if p.spindlespeed:
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return '%s S%s' % ('M3', str(p.spindlespeed))
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else:
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return 'M3'
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def toolchange_code(self, p):
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return ''
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def up_to_zero_code(self, p):
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return 'M5'
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def position_code(self, p):
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# formula for skewing on x for example is:
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# x_fin = x_init + y_init/slope where slope = p._bed_limit_y / p._bed_skew_x (a.k.a tangent)
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if p._bed_skew_x == 0:
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x_pos = p.x + p._bed_offset_x
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else:
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x_pos = (p.x + p._bed_offset_x) + ((p.y / p._bed_limit_y) * p._bed_skew_x)
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if p._bed_skew_y == 0:
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y_pos = p.y + p._bed_offset_y
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else:
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y_pos = (p.y + p._bed_offset_y) + ((p.x / p._bed_limit_x) * p._bed_skew_y)
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return ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \
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(p.coords_decimals, x_pos, p.coords_decimals, y_pos)
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def rapid_code(self, p):
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return ('G0 ' + self.position_code(p)).format(**p)
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def linear_code(self, p):
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return ('G1 ' + self.position_code(p)).format(**p) + \
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' F' + str(self.feedrate_format % (p.fr_decimals, p.feedrate))
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def end_code(self, p):
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coords_xy = p['xy_end']
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gcode = ('G0 Z' + self.feedrate_format % (p.fr_decimals, p.z_end) + "\n")
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if coords_xy and coords_xy != '':
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gcode += 'G0 X{x} Y{y}'.format(x=coords_xy[0], y=coords_xy[1]) + "\n"
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return gcode
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def feedrate_code(self, p):
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return 'G1 F' + str(self.feedrate_format % (p.fr_decimals, p.feedrate))
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def z_feedrate_code(self, p):
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return 'G1 F' + str(self.feedrate_format % (p.fr_decimals, p.z_feedrate))
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def spindle_code(self, p):
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if p.spindlespeed:
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return '%s S%s' % ('M3', str(p.spindlespeed))
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else:
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return 'M3'
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def dwell_code(self, p):
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return ''
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def spindle_stop_code(self, p):
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return 'M5'
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