143 lines
5.5 KiB
Python
143 lines
5.5 KiB
Python
# -*- coding: utf-8 -*-
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#***************************************************************************
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#* *
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#* Copyright (c) 2015 Dan Falck <ddfalck@gmail.com> *
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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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#* This program 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 Library 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 this program; 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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TOOLTIP=''' example post for Centroid CNC mill'''
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import FreeCAD
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import datetime
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now = datetime.datetime.now()
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import Path, PathScripts
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from PathScripts import PostUtils
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#***************************************************************************
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# user editable stuff here
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UNITS = "G20" #old style inch units for this shop
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MACHINE_NAME = "BigMill"
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CORNER_MIN = {'x':-609.6, 'y':-152.4, 'z':0 } #use metric for internal units
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CORNER_MAX = {'x':609.6, 'y':152.4, 'z':304.8 } #use metric for internal units
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SHOW_EDITOR = True
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MODAL = True
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COMMENT= ';' #centroid control comment symbol
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HEADER = ""
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HEADER += ";Exported by FreeCAD\n"
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HEADER += ";Post Processor: " + __name__ +"\n"
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HEADER += ";CAM file: %s\n"
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HEADER += ";Output Time:"+str(now)+"\n"
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TOOLRETURN = '''M5 M25
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G49 H0\n''' #spindle off,height offset canceled,spindle retracted (M25 is a centroid command to retract spindle)
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ZAXISRETURN = '''G91 G28 X0 Z0
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G90\n'''
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SAFETYBLOCK = 'G90 G80 G40 G49\n'
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AXIS_DECIMALS = 4
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FEED_DECIMALS = 1
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SPINDLE_DECIMALS = 0
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FOOTER = 'M99'+'\n'
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# don't edit with the stuff below the next line unless you know what you're doing :)
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#***************************************************************************
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if open.__module__ == '__builtin__':
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pythonopen = open
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def export(selection,filename,argstring):
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params = ['X','Y','Z','A','B','I','J','F','H','S','T','Q','R','L'] #Using XY plane most of the time so skipping K
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for obj in selection:
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if not hasattr(obj,"Path"):
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print "the object " + obj.Name + " is not a path. Please select only path and Compounds."
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return
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myMachine = None
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for pathobj in selection:
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if hasattr(pathobj,"MachineName"):
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myMachine = pathobj.MachineName
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if hasattr(pathobj, "MachineUnits"):
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if pathobj.MachineUnits == "Metric":
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UNITS = "G21"
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else:
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UNITS = "G20"
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if myMachine is None:
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print "No machine found in this selection"
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gcode =''
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gcode+= HEADER % (FreeCAD.ActiveDocument.FileName)
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gcode+= SAFETYBLOCK
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gcode+= UNITS+'\n'
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lastcommand = None
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gcode+= COMMENT+ selection[0].Description +'\n'
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gobjects = []
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for g in selection[0].Group:
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gobjects.append(g)
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for obj in gobjects:
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for c in obj.Path.Commands:
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outstring = []
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command = c.Name
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if command[0]=='(':
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command = PostUtils.fcoms(command, COMMENT)
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outstring.append(command)
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if MODAL == True:
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if command == lastcommand:
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outstring.pop(0)
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if c.Parameters >= 1:
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for param in params:
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if param in c.Parameters:
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if param == 'F':
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outstring.append(param + PostUtils.fmt(c.Parameters['F'], FEED_DECIMALS,UNITS))
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elif param == 'H':
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outstring.append(param + str(int(c.Parameters['H'])))
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elif param == 'S':
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outstring.append(param + PostUtils.fmt(c.Parameters['S'], SPINDLE_DECIMALS,'G21')) #rpm is unitless-therefore I had to 'fake it out' by using metric units which don't get converted from entered value
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elif param == 'T':
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outstring.append(param + str(int(c.Parameters['T'])))
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else:
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outstring.append(param + PostUtils.fmt(c.Parameters[param],AXIS_DECIMALS,UNITS))
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outstr = str(outstring)
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outstr =outstr.replace('[','')
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outstr =outstr.replace(']','')
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outstr =outstr.replace("'",'')
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outstr =outstr.replace(",",'')
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gcode+= outstr + '\n'
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lastcommand = c.Name
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gcode+= TOOLRETURN
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gcode+= SAFETYBLOCK
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gcode+= FOOTER
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if SHOW_EDITOR:
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PostUtils.editor(gcode)
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gfile = pythonopen(filename,"wb")
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gfile.write(gcode)
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gfile.close()
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