3e0def8da0
This is a postprocessor file for the Path workbench. It is used to take a pseudo-gcode fragment outputted by a Path object and output real GCode suitable for the Max Computer GmbH nccad9 Computer Numeric Control used in german (vocational) schools. Supported features: - 3-axis milling - manual tool change with tool number as comment - spindle speed as comment gCode files must use the suffix .knc !!!
123 lines
4.7 KiB
Python
123 lines
4.7 KiB
Python
# *********************************************************************************************
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# * Copyright (c) 2019/2020 Rene 'Renne' Bartsch, B.Sc. Informatics <rene@bartschnet.de> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * FreeCAD is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Lesser General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with FreeCAD; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ********************************************************************************************/
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import FreeCAD
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import PathScripts
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from PathScripts import PostUtils
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import datetime
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TOOLTIP='''
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This is a postprocessor file for the Path workbench. It is used to take
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a pseudo-gcode fragment outputted by a Path object and output real GCode
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suitable for the Max Computer GmbH nccad9 Computer Numeric Control.
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Supported features:
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- 3-axis milling
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- manual tool change with tool number as comment
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- spindle speed as comment
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!!! gCode files must use the suffix .knc !!!'''
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MACHINE_NAME = '''Max Computer GmbH nccad9 MCS/KOSY'''
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# gCode for changing tools
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TOOL_CHANGE = '''G77 ; Move to release position
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M10 O6.0 ; Stop spindle
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M01 Insert tool TOOL
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G76 ; Move to reference point to ensure correct coordinates after tool change
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M10 O6.1 ; Start spindel'''
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# gCode finishing the program
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POSTAMBLE = '''G77 ; Move to release position
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M10 O6.0 ; Stop spindle'''
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# gCode header with information about CAD-software, post-processor and date/time
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HEADER = ''';Exported by FreeCAD
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;Post Processor: {}
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;CAM file: {}
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;Output Time: {}
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'''.format(__name__, FreeCAD.ActiveDocument.FileName, str(datetime.datetime.now()))
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# Post processing function
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def export(objectslist, filename, argstring):
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# Add header with description
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gcode = HEADER
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# Loop through path objects
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for obj in objectslist:
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# Loop through command objects
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for command in obj.Path.Commands:
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# Manipulate tool change commands
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if 'M6' == command.Name:
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gcode += TOOL_CHANGE.replace('TOOL', str(int(command.Parameters['T'])))
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# Convert spindle speed (rpm) command to comment
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elif 'M3' == command.Name:
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gcode += 'M01 Set spindle speed to ' + str(int(command.Parameters['S'])) + ' rounds per minute'
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# Add other commands
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else:
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gcode += command.Name
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# Loop through command parameters
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for parameter, value in command.Parameters.items():
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# Multiply F parameter value by 10 (FreeCAD = mm/s, nccad = 1/10 mm/s)
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if 'F' == parameter:
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value *= 10
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# Add command parameters and values
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gcode += ' ' + parameter + str(round(value, 5))
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# Add line-break of command
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gcode += '\n'
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# Add postamble
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gcode += POSTAMBLE + '\n'
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# Open editor window
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if FreeCAD.GuiUp:
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dia = PostUtils.GCodeEditorDialog()
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dia.editor.setText(gcode)
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result = dia.exec_()
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if result:
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gcode = dia.editor.toPlainText()
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# Save to file
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if not filename == '-':
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gfile = open(filename, "w")
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gfile.write(gcode)
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gfile.close()
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# Return
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return filename
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