768 lines
29 KiB
Python
768 lines
29 KiB
Python
# -*- coding: utf-8 -*-
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# *****************************************************************************
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# * Copyright (c) 2014 sliptonic <shopinthewoods@gmail.com> *
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# * Copyright (c) 2018-2019 Gauthier Briere *
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# * Copyright (c) 2019-2020 Schildkroet *
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# * Copyright (c) 2020 Gary L Hasson *
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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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from datetime import datetime
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import argparse
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import shlex
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import FreeCAD
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from FreeCAD import Units
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import Path
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import Path.Base.Util as PathUtil
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import Path.Post.Utils as PostUtils
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import PathScripts.PathUtils as PathUtils
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Revised = "2021-10-21" # Revision date for this file.
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# *****************************************************************************
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# * Due to the fundamentals of the FreeCAD pre-processor, *
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# * this post processor can only operate in the following modes: *
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# * G90 Absolute positions *
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# * G21 Metric units (mm) *
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# * G17 XY plane (3 axis vertical milling only) *
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# * *
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# *****************************************************************************
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TOOLTIP = """
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Generate g-code from a Path that is compatible with the Duet controller (RepRapFirmware).
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import rrf_post
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rrf_post.export(object, "/path/to/file.nc")
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"""
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# *****************************************************************************
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# * Initial configuration, not changeable *
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# *****************************************************************************
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MOTION_MODE = "G90" # G90 only, for absolute moves
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WORK_PLANE = "G17" # G17 only, XY plane, for vertical milling
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UNITS = "G21" # G21 only, for metric
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UNIT_FORMAT = "mm"
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UNIT_FEED_FORMAT = "mm/min"
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# *****************************************************************************
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# * Initial configuration, changeable via command line arguments *
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# *****************************************************************************
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PRECISION = 3 # Decimal places displayed for metric
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DRILL_RETRACT_MODE = "G98" # End of drill-cycle retractation type. G99
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# is the alternative.
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TRANSLATE_DRILL_CYCLES = True # If true, G81, G82, and G83 are translated
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# into G0/G1 moves
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RETURN_TO = None # None = No movement at end of program
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SPINDLE_WAIT = 3 # 0 == No waiting after M3 / M4
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MODAL = False # True: Commands are suppressed if they are
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# the same as the previous line
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LINENR = 100 # Line number starting value
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LINEINCR = 10 # Line number increment
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PRE_OPERATION = """""" # Pre operation text will be inserted before
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# every operation
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POST_OPERATION = """""" # Post operation text will be inserted after
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# every operation
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TOOL_CHANGE = """""" # Tool Change commands will be inserted
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# before a tool change
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# *****************************************************************************
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# * Initial gcode output options, changeable via command line arguments *
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# *****************************************************************************
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OUTPUT_HEADER = True # Output header in output gcode file
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OUTPUT_COMMENTS = True # Comments in output gcode file
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OUTPUT_FINISH = False # Include an operation finished comment
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OUTPUT_PATH = False # Include a Path: comment
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OUTPUT_RRF_CONFIG = True # Display expected #defines for RRF config
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OUTPUT_LINE_NUMBERS = False # Output line numbers in output gcode file
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OUTPUT_BCNC = False # Add bCNC operation block headers in output
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# gcode file
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SHOW_EDITOR = True # Display the resulting gcode file
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OUTPUT_TOOL_CHANGE = True
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# *****************************************************************************
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# * Command line arguments *
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# *****************************************************************************
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parser = argparse.ArgumentParser(prog="rrf", add_help=False)
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parser.add_argument("--header", action="store_true", help="output headers (default)")
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parser.add_argument("--no-header", action="store_true", help="suppress header output")
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parser.add_argument("--comments", action="store_true", help="output comment (default)")
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parser.add_argument("--no-comments", action="store_true", help="suppress comment output")
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parser.add_argument("--finish-comments", action="store_true", help="output finish-comment")
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parser.add_argument(
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"--no-finish-comments",
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action="store_true",
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help="suppress finish-comment output (default)",
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)
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parser.add_argument("--path-comments", action="store_true", help="output path-comment")
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parser.add_argument(
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"--no-path-comments",
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action="store_true",
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help="suppress path-comment output (default)",
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)
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parser.add_argument("--rrf-config", action="store_true", help="output #defines for RRF")
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parser.add_argument(
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"--no-rrf-config",
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action="store_true",
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help="suppress output #defines for RRF (default)",
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)
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parser.add_argument("--line-numbers", action="store_true", help="prefix with line numbers")
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parser.add_argument(
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"--no-line-numbers",
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action="store_true",
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help="do not prefix with line numbers (default)",
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)
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parser.add_argument(
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"--show-editor",
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action="store_true",
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help="pop up editor before writing output (default)",
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)
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parser.add_argument(
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"--no-show-editor",
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action="store_true",
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help="do not pop up editor before writing output",
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)
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parser.add_argument("--precision", default="3", help="number of digits of precision, default=3")
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parser.add_argument(
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"--translate_drill",
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action="store_true",
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help="translate drill cycles G81, G82, G83 into G0/G1 movements (default)",
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)
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parser.add_argument(
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"--no-translate_drill",
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action="store_true",
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help="do not translate drill cycles G81, G82, G83 into G0/G1 movements",
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)
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parser.add_argument(
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"--preamble", help='set commands to be issued before the first command, default=""'
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)
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parser.add_argument(
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"--postamble", help='set commands to be issued after the last command, default="M5"'
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)
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parser.add_argument("--tool-change", action="store_true", help="Insert M6 for all tool changes")
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parser.add_argument(
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"--wait-for-spindle",
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type=int,
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default=3,
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help="Wait for spindle to reach desired speed after M3 or M4, default=0",
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)
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parser.add_argument(
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"--return-to",
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default="",
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help='When done, move to, e.g. --return-to="3.175, 4.702, 50.915"',
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)
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parser.add_argument(
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"--bcnc",
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action="store_true",
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help="Add Job operations as bCNC block headers. \
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Consider suppressing existing comments: Add argument --no-comments",
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)
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parser.add_argument(
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"--no-bcnc", action="store_true", help="suppress bCNC block header output (default)"
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)
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TOOLTIP_ARGS = parser.format_help()
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# *****************************************************************************
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# * RRF *
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# * Ignores commands that it does not implement. *
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# * Some machining-related commands may conflict with gcodes that RRF *
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# * has assigned to 3D printing commands. *
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# * Therefore, check FreeCAD gcodes for conflicts with RRF. *
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# * RRF ignores the ENTIRE COMMAND LINE if there is more than *
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# * one command per line. *
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# *****************************************************************************
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# Default preamble text will appear at the beginning of the gcode output file.
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PREAMBLE = """"""
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# Default postamble text will appear following the last operation.
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POSTAMBLE = """M5
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"""
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# *****************************************************************************
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# * Internal global variables *
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# *****************************************************************************
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MOTION_COMMANDS = ["G0", "G00", "G1", "G01", "G2", "G02", "G3", "G03"]
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RAPID_MOVES = ["G0", "G00"] # Rapid moves gcode commands definition
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SUPPRESS_COMMANDS = [] # These commands are ignored by commenting them out
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COMMAND_SPACE = " "
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# Global variables storing current position (Use None for safety.)
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CURRENT_X = None
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CURRENT_Y = None
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CURRENT_Z = None
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def processArguments(argstring):
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global OUTPUT_HEADER
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global OUTPUT_COMMENTS
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global OUTPUT_FINISH
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global OUTPUT_PATH
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global OUTPUT_RRF_CONFIG
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global OUTPUT_LINE_NUMBERS
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global SHOW_EDITOR
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global PREAMBLE
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global POSTAMBLE
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global UNITS
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global UNIT_FEED_FORMAT
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global UNIT_FORMAT
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global TRANSLATE_DRILL_CYCLES
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global OUTPUT_TOOL_CHANGE
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global SPINDLE_WAIT
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global RETURN_TO
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global OUTPUT_BCNC
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global PRECISION
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try:
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args = parser.parse_args(shlex.split(argstring))
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if args.no_header:
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OUTPUT_HEADER = False
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if args.header:
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OUTPUT_HEADER = True
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if args.no_comments:
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OUTPUT_COMMENTS = False
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if args.comments:
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OUTPUT_COMMENTS = True
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if args.no_finish_comments:
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OUTPUT_FINISH = False
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if args.finish_comments:
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OUTPUT_FINISH = True
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if args.no_path_comments:
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OUTPUT_PATH = False
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if args.path_comments:
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OUTPUT_PATH = True
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if args.no_rrf_config:
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OUTPUT_RRF_CONFIG = False
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if args.rrf_config:
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OUTPUT_RRF_CONFIG = True
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if args.no_line_numbers:
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OUTPUT_LINE_NUMBERS = False
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if args.line_numbers:
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OUTPUT_LINE_NUMBERS = True
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if args.no_show_editor:
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SHOW_EDITOR = False
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if args.show_editor:
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SHOW_EDITOR = True
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if args.preamble is not None:
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PREAMBLE = args.preamble
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if args.postamble is not None:
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POSTAMBLE = args.postamble
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if args.no_translate_drill:
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TRANSLATE_DRILL_CYCLES = False
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if args.translate_drill:
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TRANSLATE_DRILL_CYCLES = True
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if args.tool_change:
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OUTPUT_TOOL_CHANGE = True
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if args.return_to:
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RETURN_TO = args.return_to
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if RETURN_TO.find(",") == -1:
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RETURN_TO = None
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print("--return-to coordinates must be specified as:")
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print('--return-to "x.n,y.n,z.n"')
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if args.bcnc:
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OUTPUT_BCNC = True
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if args.no_bcnc:
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OUTPUT_BCNC = False
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SPINDLE_WAIT = args.wait_for_spindle
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PRECISION = args.precision
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except Exception as e:
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return False
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return True
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# For debug...
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def dump(obj):
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for attr in dir(obj):
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try:
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if attr.startswith("__"):
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continue
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print(">" + attr + "<")
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attr_text = "%s = %s" % (attr, getattr(obj, attr))
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if attr in ["HorizFeed", "VertFeed"]:
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print("==============\n", attr_text)
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if "mm/s" in attr_text:
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print("===> metric values <===")
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except Exception: # Insignificant errors
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# print('==>', obj, attr)
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pass
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def export(objectslist, filename, argstring):
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if not processArguments(argstring):
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return None
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global UNITS
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global UNIT_FORMAT
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global UNIT_FEED_FORMAT
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global MOTION_MODE
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global SUPPRESS_COMMANDS
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print("Post Processor: " + __name__ + " postprocessing...")
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gcode = ""
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# Write header:
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if OUTPUT_HEADER:
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gcode += linenumber() + "(Exported by FreeCAD)\n"
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gcode += linenumber() + "(Post Processor: " + __name__
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gcode += ".py, version: " + Revised + ")\n"
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gcode += linenumber() + "(Output Time:" + str(datetime.now()) + ")\n"
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# Suppress drill-cycle commands:
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if TRANSLATE_DRILL_CYCLES:
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SUPPRESS_COMMANDS += ["G80", "G98", "G99"]
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# Write the preamble:
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if OUTPUT_COMMENTS:
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gcode += linenumber() + "(Begin preamble)\n"
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for line in PREAMBLE.splitlines(True):
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gcode += linenumber() + line
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# Write these settings AFTER the preamble,
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# to prevent the preamble from changing these:
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if OUTPUT_COMMENTS:
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gcode += linenumber() + "(Default Configuration)\n"
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gcode += linenumber() + MOTION_MODE + "\n"
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gcode += linenumber() + UNITS + "\n"
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gcode += linenumber() + WORK_PLANE + "\n"
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for obj in objectslist:
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# Debug...
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# print('\n' + '*'*70 + '\n')
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# dump(obj)
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# print('\n' + '*'*70 + '\n')
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if not hasattr(obj, "Path"):
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print(
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"The object " + obj.Name + " is not a path. Please select only path and Compounds."
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)
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return
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# Skip inactive operations:
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if PathUtil.opProperty(obj, "Active") is False:
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continue
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# Do the pre_op:
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if OUTPUT_BCNC:
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gcode += linenumber() + "(Block-name: " + obj.Label + ")\n"
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gcode += linenumber() + "(Block-expand: 0)\n"
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gcode += linenumber() + "(Block-enable: 1)\n"
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if OUTPUT_COMMENTS:
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gcode += linenumber() + "(Begin operation: " + obj.Label + ")\n"
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for line in PRE_OPERATION.splitlines(True):
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gcode += linenumber() + line
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# Get coolant mode:
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coolantMode = "None" # None is the word returned from the operation
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if hasattr(obj, "CoolantMode") or hasattr(obj, "Base") and hasattr(obj.Base, "CoolantMode"):
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if hasattr(obj, "CoolantMode"):
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coolantMode = obj.CoolantMode
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else:
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coolantMode = obj.Base.CoolantMode
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# Turn coolant on if required:
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if OUTPUT_COMMENTS:
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if not coolantMode == "None":
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gcode += linenumber() + "(Coolant On:" + coolantMode + ")\n"
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if coolantMode == "Flood":
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gcode += linenumber() + "M8\n"
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if coolantMode == "Mist":
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gcode += linenumber() + "M7\n"
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# Parse the op:
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gcode += parse(obj)
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# Do the post_op:
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if OUTPUT_COMMENTS and OUTPUT_FINISH:
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gcode += linenumber() + "(Finish operation: " + obj.Label + ")\n"
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for line in POST_OPERATION.splitlines(True):
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gcode += linenumber() + line
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# Turn coolant off if previously enabled:
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if not coolantMode == "None":
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if OUTPUT_COMMENTS:
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gcode += linenumber() + "(Coolant Off:" + coolantMode + ")\n"
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gcode += linenumber() + "M9\n"
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# Do the post_amble:
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if OUTPUT_BCNC:
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gcode += linenumber() + "(Block-name: post_amble)\n"
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gcode += linenumber() + "(Block-expand: 0)\n"
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gcode += linenumber() + "(Block-enable: 1)\n"
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if OUTPUT_COMMENTS:
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gcode += linenumber() + "(Begin postamble)\n"
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for line in POSTAMBLE.splitlines(True):
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gcode += linenumber() + line
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# Optionally add a final XYZ position to the end of the gcode:
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if RETURN_TO:
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first_comma = RETURN_TO.find(",")
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last_comma = RETURN_TO.rfind(",") # == first_comma if only one comma
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ref_X = " X" + RETURN_TO[0:first_comma].strip()
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# Z is optional:
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if last_comma != first_comma:
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ref_Z = " Z" + RETURN_TO[last_comma + 1 :].strip()
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ref_Y = " Y" + RETURN_TO[first_comma + 1 : last_comma].strip()
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else:
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ref_Z = ""
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ref_Y = " Y" + RETURN_TO[first_comma + 1 :].strip()
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gcode += linenumber() + "G0" + ref_X + ref_Y + ref_Z + "\n"
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# Optionally add recommended RRF configuration to gcode file:
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if OUTPUT_RRF_CONFIG:
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gcode += linenumber() + "(RRF Configuration)\n"
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gcode += linenumber() + "(The following should be enabled in)\n"
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gcode += linenumber() + "(the config.g)\n"
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gcode += linenumber() + "(M453)\n"
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# Show the gcode result dialog:
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if FreeCAD.GuiUp and SHOW_EDITOR:
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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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final = dia.editor.toPlainText()
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else:
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final = gcode
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else:
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final = gcode
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print("Done postprocessing.")
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# Write the file:
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with open(filename, "w") as fp:
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fp.write(final)
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def linenumber():
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if not OUTPUT_LINE_NUMBERS:
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return ""
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global LINENR
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global LINEINCR
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LINENR += LINEINCR
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return "N" + str(LINENR) + " "
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def format_outlist(strTable):
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# construct the line for the final output
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global COMMAND_SPACE
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s = ""
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for w in strTable:
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s += w + COMMAND_SPACE
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return s.strip()
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def parse(pathobj):
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global DRILL_RETRACT_MODE
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global MOTION_MODE
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global CURRENT_X
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global CURRENT_Y
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global CURRENT_Z
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out = ""
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lastcommand = None
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precision_string = "." + str(PRECISION) + "f"
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params = [
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"X",
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"Y",
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"Z",
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"A",
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"B",
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"C",
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"U",
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"V",
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"W",
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"I",
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"J",
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"K",
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"F",
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"S",
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"T",
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"Q",
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"R",
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"L",
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"P",
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]
|
|
|
|
if hasattr(pathobj, "Group"): # We have a compound or project.
|
|
if OUTPUT_COMMENTS:
|
|
out += linenumber() + "(Compound: " + pathobj.Label + ")\n"
|
|
for p in pathobj.Group:
|
|
out += parse(p)
|
|
return out
|
|
|
|
else: # Parsing simple path
|
|
# groups might contain non-path things like stock.
|
|
if not hasattr(pathobj, "Path"):
|
|
return out
|
|
|
|
if OUTPUT_COMMENTS and OUTPUT_PATH:
|
|
out += linenumber() + "(Path: " + pathobj.Label + ")\n"
|
|
|
|
for c in PathUtils.getPathWithPlacement(pathobj).Commands:
|
|
outlist = []
|
|
command = c.Name
|
|
outlist.append(command)
|
|
# Debug:
|
|
# print('pathobj.Path.Commands:', c)
|
|
|
|
# If modal is True, delete duplicate commands:
|
|
if MODAL:
|
|
if command == lastcommand:
|
|
outlist.pop(0)
|
|
|
|
# Add the remaining parameters in order:
|
|
for param in params:
|
|
if param in c.Parameters:
|
|
if param == "F":
|
|
if command not in RAPID_MOVES:
|
|
feedRate = Units.Quantity(c.Parameters["F"], FreeCAD.Units.Velocity)
|
|
if feedRate.getValueAs(UNIT_FEED_FORMAT) > 0.0:
|
|
outlist.append(
|
|
param
|
|
+ format(
|
|
float(feedRate.getValueAs(UNIT_FEED_FORMAT)),
|
|
precision_string,
|
|
)
|
|
)
|
|
elif param == "T":
|
|
outlist.append(param + str(int(c.Parameters[param])))
|
|
|
|
elif param in ["H", "D", "S", "P", "L"]:
|
|
outlist.append(param + str(c.Parameters[param]))
|
|
elif param in ["A", "B", "C"]:
|
|
outlist.append(param + format(c.Parameters[param], precision_string))
|
|
# [X, Y, Z, U, V, W, I, J, K, R, Q]
|
|
else:
|
|
pos = Units.Quantity(c.Parameters[param], FreeCAD.Units.Length)
|
|
outlist.append(
|
|
param + format(float(pos.getValueAs(UNIT_FORMAT)), precision_string)
|
|
)
|
|
|
|
# Store the latest command:
|
|
lastcommand = command
|
|
|
|
# Capture the current position for subsequent calculations:
|
|
if command in MOTION_COMMANDS:
|
|
if "X" in c.Parameters:
|
|
CURRENT_X = Units.Quantity(c.Parameters["X"], FreeCAD.Units.Length)
|
|
if "Y" in c.Parameters:
|
|
CURRENT_Y = Units.Quantity(c.Parameters["Y"], FreeCAD.Units.Length)
|
|
if "Z" in c.Parameters:
|
|
CURRENT_Z = Units.Quantity(c.Parameters["Z"], FreeCAD.Units.Length)
|
|
|
|
if command in ("G98", "G99"):
|
|
DRILL_RETRACT_MODE = command
|
|
|
|
if TRANSLATE_DRILL_CYCLES:
|
|
if command in ("G81", "G82", "G83"):
|
|
out += drill_translate(outlist, command, c.Parameters)
|
|
# Erase the line just translated:
|
|
outlist = []
|
|
|
|
if SPINDLE_WAIT > 0:
|
|
if command in ("M3", "M03", "M4", "M04"):
|
|
out += linenumber() + format_outlist(outlist) + "\n"
|
|
# RRF: P for milliseconds, S for seconds, change P to S
|
|
out += linenumber()
|
|
out += format_outlist(["G4", "S%s" % SPINDLE_WAIT])
|
|
out += "\n"
|
|
outlist = []
|
|
|
|
# Check for Tool Change:
|
|
if command in ("M6", "M06"):
|
|
|
|
if OUTPUT_COMMENTS:
|
|
out += linenumber() + "(Begin toolchange)\n"
|
|
|
|
if OUTPUT_TOOL_CHANGE:
|
|
for line in TOOL_CHANGE.splitlines(True):
|
|
out += linenumber() + line + "\n"
|
|
outlist[0] = " "
|
|
outlist[-1] = "T" + str(int(c.Parameters["T"]))
|
|
|
|
if not OUTPUT_TOOL_CHANGE and OUTPUT_COMMENTS:
|
|
# next 2 lines could also be replaced by a single line as "outlist = []"
|
|
outlist[0] = " "
|
|
outlist[-1] = " "
|
|
|
|
if not OUTPUT_TOOL_CHANGE and not OUTPUT_COMMENTS:
|
|
outlist = []
|
|
|
|
if command == "message":
|
|
if OUTPUT_COMMENTS:
|
|
outlist.pop(0) # remove the command
|
|
else:
|
|
out = []
|
|
|
|
if command in SUPPRESS_COMMANDS:
|
|
outlist[0] = "(" + outlist[0]
|
|
outlist[-1] = outlist[-1] + ")"
|
|
|
|
# Remove embedded comments:
|
|
if not OUTPUT_COMMENTS:
|
|
tmplist = []
|
|
list_index = 0
|
|
while list_index < len(outlist):
|
|
left_index = outlist[list_index].find("(")
|
|
if left_index == -1: # Not a comment
|
|
tmplist.append(outlist[list_index])
|
|
else: # This line contains a comment, and possibly more
|
|
right_index = outlist[list_index].find(")")
|
|
comment_area = outlist[list_index][left_index : right_index + 1]
|
|
line_minus_comment = outlist[list_index].replace(comment_area, "").strip()
|
|
if line_minus_comment:
|
|
# Line contained more than just a comment
|
|
tmplist.append(line_minus_comment)
|
|
list_index += 1
|
|
# Done removing comments
|
|
outlist = tmplist
|
|
|
|
# Prepend a line number and append a newline
|
|
if len(outlist) >= 1:
|
|
out += linenumber() + format_outlist(outlist) + "\n"
|
|
|
|
return out
|
|
|
|
|
|
# *****************************************************************************
|
|
# * As of RRF 3.3 canned drill cycles do not exist. *
|
|
# * The following code converts FreeCAD's canned drill cycles into *
|
|
# * gcode that RRF can use. *
|
|
# *****************************************************************************
|
|
def drill_translate(outlist, cmd, params):
|
|
global DRILL_RETRACT_MODE
|
|
global MOTION_MODE
|
|
global CURRENT_X
|
|
global CURRENT_Y
|
|
global CURRENT_Z
|
|
global UNITS
|
|
global UNIT_FORMAT
|
|
global UNIT_FEED_FORMAT
|
|
|
|
class Drill: # Using a class is necessary for the nested functions.
|
|
gcode = ""
|
|
|
|
strFormat = "." + str(PRECISION) + "f"
|
|
|
|
if OUTPUT_COMMENTS: # Comment the original command
|
|
outlist[0] = "(" + outlist[0]
|
|
outlist[-1] = outlist[-1] + ")"
|
|
Drill.gcode += linenumber() + format_outlist(outlist) + "\n"
|
|
|
|
# Cycle conversion only converts the cycles in the XY plane (G17).
|
|
# --> ZX (G18) and YZ (G19) planes produce false gcode.
|
|
drill_X = Units.Quantity(params["X"], FreeCAD.Units.Length)
|
|
drill_Y = Units.Quantity(params["Y"], FreeCAD.Units.Length)
|
|
drill_Z = Units.Quantity(params["Z"], FreeCAD.Units.Length)
|
|
drill_R = Units.Quantity(params["R"], FreeCAD.Units.Length)
|
|
drill_F = Units.Quantity(params["F"], FreeCAD.Units.Velocity)
|
|
if cmd == "G82":
|
|
drill_DwellTime = params["P"]
|
|
elif cmd == "G83":
|
|
drill_Step = Units.Quantity(params["Q"], FreeCAD.Units.Length)
|
|
|
|
# R less than Z is error
|
|
if drill_R < drill_Z:
|
|
Drill.gcode += linenumber() + "(drill cycle error: R less than Z )\n"
|
|
return Drill.gcode
|
|
|
|
# Z height to retract to when drill cycle is done:
|
|
if DRILL_RETRACT_MODE == "G98" and CURRENT_Z > drill_R:
|
|
RETRACT_Z = CURRENT_Z
|
|
else:
|
|
RETRACT_Z = drill_R
|
|
|
|
# Z motion nested functions:
|
|
def rapid_Z_to(new_Z):
|
|
Drill.gcode += linenumber() + "G0 Z"
|
|
Drill.gcode += format(float(new_Z.getValueAs(UNIT_FORMAT)), strFormat) + "\n"
|
|
|
|
def feed_Z_to(new_Z):
|
|
Drill.gcode += linenumber() + "G1 Z"
|
|
Drill.gcode += format(float(new_Z.getValueAs(UNIT_FORMAT)), strFormat) + " F"
|
|
Drill.gcode += format(float(drill_F.getValueAs(UNIT_FEED_FORMAT)), ".2f") + "\n"
|
|
|
|
# Make sure that Z is not below RETRACT_Z:
|
|
if CURRENT_Z < RETRACT_Z:
|
|
rapid_Z_to(RETRACT_Z)
|
|
|
|
# Rapid to hole position XY:
|
|
Drill.gcode += linenumber() + "G0 X"
|
|
Drill.gcode += format(float(drill_X.getValueAs(UNIT_FORMAT)), strFormat) + " Y"
|
|
Drill.gcode += format(float(drill_Y.getValueAs(UNIT_FORMAT)), strFormat) + "\n"
|
|
|
|
# Rapid to R:
|
|
rapid_Z_to(drill_R)
|
|
|
|
# *************************************************************************
|
|
# * Drill cycles: *
|
|
# * G80 Cancel the drill cycle *
|
|
# * G81 Drill full depth in one pass *
|
|
# * G82 Drill full depth in one pass, and pause at the bottom *
|
|
# * G83 Drill in pecks, raising the drill to R height after each peck *
|
|
# * In preparation for a rapid to the next hole position: *
|
|
# * G98 After the hole has been drilled, retract to the initial Z value *
|
|
# * G99 After the hole has been drilled, retract to R height *
|
|
# * Select G99 only if safe to move from hole to hole at the R height *
|
|
# *************************************************************************
|
|
if cmd in ("G81", "G82"):
|
|
feed_Z_to(drill_Z) # Drill hole in one step
|
|
if cmd == "G82": # Dwell time delay at the bottom of the hole
|
|
Drill.gcode += linenumber() + "G4 S" + str(drill_DwellTime) + "\n"
|
|
# RRF uses P for milliseconds, S for seconds, change P to S
|
|
|
|
elif cmd == "G83": # Peck drill cycle:
|
|
chip_Space = drill_Step * 0.5
|
|
next_Stop_Z = drill_R - drill_Step
|
|
while next_Stop_Z >= drill_Z:
|
|
feed_Z_to(next_Stop_Z) # Drill one peck of depth
|
|
|
|
# Set next depth, next_Stop_Z is still at the current hole depth
|
|
if (next_Stop_Z - drill_Step) >= drill_Z:
|
|
# Rapid up to clear chips:
|
|
rapid_Z_to(drill_R)
|
|
# Rapid down to just above last peck depth:
|
|
rapid_Z_to(next_Stop_Z + chip_Space)
|
|
# Update next_Stop_Z to next depth:
|
|
next_Stop_Z -= drill_Step
|
|
elif next_Stop_Z == drill_Z:
|
|
break # Done
|
|
else: # More to drill, but less than drill_Step
|
|
# Rapid up to clear chips:
|
|
rapid_Z_to(drill_R)
|
|
# Rapid down to just above last peck depth:
|
|
rapid_Z_to(next_Stop_Z + chip_Space)
|
|
# Dril remainder of the hole depth:
|
|
feed_Z_to(drill_Z)
|
|
break # Done
|
|
rapid_Z_to(RETRACT_Z) # Done, retract the drill
|
|
|
|
return Drill.gcode
|
|
|
|
|
|
# print(__name__ + ': GCode postprocessor loaded.')
|
|
|
|
# PEP8 format passed using: http://pep8online.com/, which primarily covers
|
|
# indentation and line length. Some other aspects of PEP8 which have not
|
|
# been applied yet may be applied in future updates.
|