# ########################################################## # FlatCAM: 2D Post-processing for Manufacturing # # Website: http://flatcam.org # # File Author: Marius Adrian Stanciu (c) # # Date: 8-Feb-2020 # # License: MIT Licence # # ########################################################## from appPreProcessor import * class Marlin_laser_Spindle_pin(PreProc): include_header = True coordinate_format = "%.*f" feedrate_format = '%.*f' feedrate_rapid_format = feedrate_format def start_code(self, p): units = ' ' + str(p['units']).lower() end_coords_xy = p['xy_end'] gcode = ';This preprocessor is used with a motion controller loaded with MARLIN firmware.\n' gcode += ';It is for the case when it is used together with a LASER connected on the SPINDLE connector.\n'\ ';This preprocessor makes no moves on the Z axis it will only move horizontally.\n' \ ';It assumes a manually focused laser.\n' \ ';The laser is started with M3 command and stopped with the M5 command.\n\n' xmin = '%.*f' % (p.coords_decimals, p['options']['xmin']) xmax = '%.*f' % (p.coords_decimals, p['options']['xmax']) ymin = '%.*f' % (p.coords_decimals, p['options']['ymin']) ymax = '%.*f' % (p.coords_decimals, p['options']['ymax']) gcode += ';Feedrate: ' + str(p['feedrate']) + units + '/min' + '\n' gcode += ';Feedrate rapids: ' + str(p['feedrate_rapid']) + units + '/min' + '\n' + '\n' gcode += ';Z Focus: ' + str(p['z_move']) + units + '\n' gcode += ';Steps per circle: ' + str(p['steps_per_circle']) + '\n' if str(p['options']['type']) == 'Excellon' or str(p['options']['type']) == 'Excellon Geometry': gcode += ';Preprocessor Excellon: ' + str(p['pp_excellon_name']) + '\n' else: gcode += ';Preprocessor Geometry: ' + str(p['pp_geometry_name']) + '\n' if end_coords_xy is not None: gcode += ';X,Y End: ' + "%.*f, %.*f" % (p.decimals, end_coords_xy[0], p.decimals, end_coords_xy[1]) + units + '\n' else: gcode += ';X,Y End: ' + "None" + units + '\n\n' gcode += ';X range: ' + '{: >9s}'.format(xmin) + ' ... ' + '{: >9s}'.format(xmax) + ' ' + units + '\n' gcode += ';Y range: ' + '{: >9s}'.format(ymin) + ' ... ' + '{: >9s}'.format(ymax) + ' ' + units + '\n\n' gcode += ';Laser Power (Spindle Speed): %s\n' % str(p['spindlespeed']) gcode += ';Laser Minimum Power: %s\n\n' % str(p['laser_min_power']) gcode += 'G20\n' if p.units.upper() == 'IN' else 'G21\n' gcode += 'G90' return gcode def startz_code(self, p): return '' def lift_code(self, p): if float(p.laser_min_power) > 0.0: # the formatted text: laser OFF must always be like this else the plotting will not be done correctly return 'M3 S%s ;laser OFF\n' % str(p.laser_min_power) else: gcode = 'M400\n' gcode += 'M5' return gcode def down_code(self, p): if p.spindlespeed: return 'M3 S%s' % str(p.spindlespeed) else: return 'M3' def toolchange_code(self, p): return '' def up_to_zero_code(self, p): return '' def position_code(self, p): # formula for skewing on x for example is: # x_fin = x_init + y_init/slope where slope = p._bed_limit_y / p._bed_skew_x (a.k.a tangent) if p._bed_skew_x == 0: x_pos = p.x + p._bed_offset_x else: x_pos = (p.x + p._bed_offset_x) + ((p.y / p._bed_limit_y) * p._bed_skew_x) if p._bed_skew_y == 0: y_pos = p.y + p._bed_offset_y else: y_pos = (p.y + p._bed_offset_y) + ((p.x / p._bed_limit_x) * p._bed_skew_y) return ('X' + self.coordinate_format + ' Y' + self.coordinate_format) % \ (p.coords_decimals, x_pos, p.coords_decimals, y_pos) def rapid_code(self, p): return ('G0 ' + self.position_code(p)).format(**p) + " " + self.feedrate_rapid_code(p) def linear_code(self, p): return ('G1 ' + self.position_code(p)).format(**p) + " " + self.inline_feedrate_code(p) def end_code(self, p): gcode = '' coords_xy = p['xy_end'] if coords_xy and coords_xy != '': gcode = 'G0 X{x} Y{y}'.format(x=coords_xy[0], y=coords_xy[1]) + " " + self.feedrate_rapid_code(p) + "\n" return gcode def feedrate_code(self, p): return 'G1 F' + str(self.feedrate_format % (p.fr_decimals, p.feedrate)) def z_feedrate_code(self, p): return 'G1 F' + str(self.feedrate_format % (p.fr_decimals, p.z_feedrate)) def inline_feedrate_code(self, p): return 'F' + self.feedrate_format % (p.fr_decimals, p.feedrate) def feedrate_rapid_code(self, p): return 'F' + self.feedrate_rapid_format % (p.fr_decimals, p.feedrate_rapid) def spindle_code(self, p): sdir = {'CW': 'M3', 'CCW': 'M4'}[p.spindledir] if p.spindlespeed: return '%s S%s' % (sdir, str(p.spindlespeed)) else: return sdir def dwell_code(self, p): return '' def spindle_stop_code(self, p): gcode = 'M400\n' gcode += 'M5' return gcode