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Merge pull request #25850 from petterreinholdtsen/cam-fanuc-post-fixes

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CAM: Get Fanuc post processor working and implement several improvements
This commit is contained in:
sliptonic
2025-12-12 10:41:51 -06:00
committed by GitHub
parent 78102d294d 9c78ced00c
commit 96d1084484
5 changed files with 495 additions and 31 deletions
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149
src/Mod/CAM/Path/Post/scripts/fanuc_post.py
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@@ -60,14 +60,14 @@ parser.add_argument(
action="store_true",
help="don't pop up editor before writing output",
)
parser.add_argument("--precision", default="3", help="number of digits of precision, default=3")
parser.add_argument("--precision", help="number of digits of precision, default=3 (mm) or 4 (in)")
parser.add_argument(
"--preamble",
help='set commands to be issued before the first command, default="G17 G54 G40 G49 G80 G90\\n"',
)
parser.add_argument(
"--postamble",
help='set commands to be issued after the last command, default="M05\\nG17 G54 G90 G80 G40\\nM6 T0\\nM2\\n"',
help='set commands to be issued after the last command, default="M05\\nG17 G54 G90 G80 G40\\nM30\\n"',
)
parser.add_argument(
"--inches", action="store_true", help="Convert output for US imperial mode (G20)"
@@ -85,6 +85,11 @@ parser.add_argument(
action="store_true",
help="suppress tool length offset (G43) following tool changes",
)
parser.add_argument(
"--end-spindle-empty",
action="store_true",
help="place last tool in tool change carousel before postamble",
)
TOOLTIP_ARGS = parser.format_help()
@@ -101,6 +106,8 @@ OUTPUT_DOUBLES = (
COMMAND_SPACE = " "
LINENR = 100 # line number starting value
END_SPINDLE_EMPTY = False
# These globals will be reflected in the Machine configuration of the project
UNITS = "G21" # G21 for metric, G20 for us standard
UNIT_SPEED_FORMAT = "mm/min"
@@ -116,14 +123,13 @@ PRECISION = 3
tapSpeed = 0
# Preamble text will appear at the beginning of the GCODE output file.
PREAMBLE = """G17 G54 G40 G49 G80 G90
DEFAULT_PREAMBLE = """G17 G54 G40 G49 G80 G90
"""
# Postamble text will appear following the last operation.
POSTAMBLE = """M05
DEFAULT_POSTAMBLE = """M05
G17 G54 G90 G80 G40
M6 T0
M2
M30
"""
# Pre operation text will be inserted before every operation
@@ -133,7 +139,9 @@ PRE_OPERATION = """"""
POST_OPERATION = """"""
# Tool Change commands will be inserted before a tool change
TOOL_CHANGE = """"""
# Move to tool change Z position
TOOL_CHANGE = """G28 G91 Z0
"""
def processArguments(argstring):
@@ -149,35 +157,66 @@ def processArguments(argstring):
global UNIT_FORMAT
global MODAL
global USE_TLO
global END_SPINDLE_EMPTY
global OUTPUT_DOUBLES
global LINENR
try:
args = parser.parse_args(shlex.split(argstring))
if args.no_header:
OUTPUT_HEADER = False
else:
OUTPUT_HEADER = True
if args.no_comments:
OUTPUT_COMMENTS = False
else:
OUTPUT_COMMENTS = True
if args.line_numbers:
OUTPUT_LINE_NUMBERS = True
LINENR = 100
else:
OUTPUT_LINE_NUMBERS = False
if args.no_show_editor:
SHOW_EDITOR = False
print("Show editor = %d" % SHOW_EDITOR)
PRECISION = args.precision
else:
SHOW_EDITOR = True
print("Show editor = %s" % SHOW_EDITOR)
if args.preamble is not None:
PREAMBLE = args.preamble.replace("\\n", "\n")
else:
PREAMBLE = DEFAULT_PREAMBLE
if args.postamble is not None:
POSTAMBLE = args.postamble.replace("\\n", "\n")
else:
POSTAMBLE = DEFAULT_POSTAMBLE
if args.inches:
UNITS = "G20"
UNIT_SPEED_FORMAT = "in/min"
UNIT_FORMAT = "in"
PRECISION = 4
else:
UNITS = "G21"
UNIT_SPEED_FORMAT = "mm/min"
UNIT_FORMAT = "mm"
PRECISION = 3
if args.precision:
PRECISION = int(args.precision)
if args.no_modal:
MODAL = False
else:
MODAL = True
if args.no_tlo:
USE_TLO = False
else:
USE_TLO = True
if args.no_axis_modal:
OUTPUT_DOUBLES = True
else:
OUTPUT_DOUBLES = False
if args.end_spindle_empty:
END_SPINDLE_EMPTY = True
else:
END_SPINDLE_EMPTY = False
except Exception:
return False
@@ -204,20 +243,20 @@ def export(objectslist, filename, argstring):
print("postprocessing...")
gcode = ""
gcode += "%\n"
# write header
if OUTPUT_HEADER:
gcode += "%\n"
gcode += ";\n"
# Get current version info
major = int(FreeCAD.ConfigGet("BuildVersionMajor"))
minor = int(FreeCAD.ConfigGet("BuildVersionMinor"))
# the filename variable always contain "-", so unable to
# provide more accurate information.
gcode += "(" + "FREECAD-FILENAME-GOES-HERE" + ", " + "JOB-NAME-GOES-HERE" + ")\n"
gcode += (
os.path.split(filename)[-1]
+ " ("
+ "FREECAD-FILENAME-GOES-HERE"
+ ", "
+ "JOB-NAME-GOES-HERE"
+ ")\n"
linenumber() + "(POST PROCESSOR: FANUC USING FREECAD %d.%d" % (major, minor) + ")\n"
)
gcode += linenumber() + "(" + filename.upper() + ",EXPORTED BY FREECAD!)\n"
gcode += linenumber() + "(POST PROCESSOR: " + __name__.upper() + ")\n"
gcode += linenumber() + "(OUTPUT TIME:" + str(now).upper() + ")\n"
# Write the preamble
@@ -229,8 +268,20 @@ def export(objectslist, filename, argstring):
for obj in objectslist:
# to stay compatible with FreeCAD 1.0
def activeForOp(obj):
# The activeForOp method is available since 2025-05-04 /
# commit 1e87d8e6681b755b9757f94b1201e50eb84b28a2
if hasattr(PathUtil, "activeForOp"):
return PathUtil.activeForOp(obj)
if hasattr(obj, "Active"):
return obj.Active
if hasattr(obj, "Base") and hasattr(obj.Base, "Active"):
return obj.Base.Active
return True
# Skip inactive operations
if not PathUtil.activeForOp(obj):
if not activeForOp(obj):
continue
# do the pre_op
@@ -240,8 +291,26 @@ def export(objectslist, filename, argstring):
for line in PRE_OPERATION.splitlines(True):
gcode += linenumber() + line
# to stay compatible with FreeCAD 1.0
def coolantModeForOp(obj):
# The coolantModeForOp method is available since
# 2025-05-04 / commit
# 1e87d8e6681b755b9757f94b1201e50eb84b28a2
if hasattr(PathUtil, "coolantModeForOp"):
return PathUtil.coolantModeForOp(obj)
if (
hasattr(obj, "CoolantMode")
or hasattr(obj, "Base")
and hasattr(obj.Base, "CoolantMode")
):
if hasattr(obj, "CoolantMode"):
return obj.CoolantMode
else:
return obj.Base.CoolantMode
return "None"
# get coolant mode
coolantMode = PathUtil.coolantModeForOp(obj)
coolantMode = coolantModeForOp(obj)
# turn coolant on if required
if OUTPUT_COMMENTS:
@@ -267,6 +336,13 @@ def export(objectslist, filename, argstring):
gcode += linenumber() + "(COOLANT OFF:" + coolantMode.upper() + ")\n"
gcode += linenumber() + "M9" + "\n"
if END_SPINDLE_EMPTY:
if OUTPUT_COMMENTS:
gcode += "(BEGIN MAKING SPINDLE EMPTY)\n"
gcode += linenumber() + "M05\n"
for line in TOOL_CHANGE.splitlines(True):
gcode += linenumber() + line
gcode += linenumber() + "M6 T0\n"
# do the post_amble
if OUTPUT_COMMENTS:
gcode += "(BEGIN POSTAMBLE)\n"
@@ -276,7 +352,13 @@ def export(objectslist, filename, argstring):
if FreeCAD.GuiUp and SHOW_EDITOR:
dia = PostUtils.GCodeEditorDialog()
dia.editor.setPlainText(gcode)
# Workaround for 1.1 while we wait for
# https://github.com/FreeCAD/FreeCAD/pull/26008 to be merged.
if hasattr(dia.editor, "setPlainText"):
dia.editor.setPlainText(gcode)
else:
dia.editor.setText(gcode)
result = dia.exec_()
if result:
final = dia.editor.toPlainText()
@@ -392,6 +474,7 @@ def parse(pathobj):
for index, c in enumerate(commands):
outstring = []
outsuffix = []
command = c.Name
if index + 1 == len(commands):
nextcommand = ""
@@ -409,17 +492,19 @@ def parse(pathobj):
if command == "G0":
continue
# if it's a tap, we rigid tap, so don't start the spindle yet...
# if tool a tap, we thread tap, so stop the spindle for now.
# This only trigger when pathobj is a ToolController.
if command == "M03" or command == "M3":
if pathobj.Tool.ShapeID.lower() == "tap":
if hasattr(pathobj, "Tool") and pathobj.Tool.ShapeName.lower() == "tap":
tapSpeed = int(pathobj.SpindleSpeed)
continue
# convert drill cycles to tap cycles if tool is a tap
# Convert drill cycles to tap cycles if tool is a tap.
# This only trigger when pathobj is a Operation.
if command == "G81" or command == "G83":
if (
hasattr(pathobj, "ToolController")
and pathobj.ToolController.Tool.ShapeID.lower() == "tap"
and pathobj.ToolController.Tool.ShapeName.lower() == "tap"
):
command = "G84"
out += linenumber() + "G95\n"
@@ -569,14 +654,14 @@ def parse(pathobj):
# Check for Tool Change:
if command == "M6":
# stop the spindle
out += linenumber() + "M5\n"
out += linenumber() + "M05\n"
for line in TOOL_CHANGE.splitlines(True):
out += linenumber() + line
# add height offset
if USE_TLO:
tool_height = "\nG43 H" + str(int(c.Parameters["T"]))
outstring.append(tool_height)
outsuffix.append("G91 G0 G43 G54 Z-[#[2000+#4120]] H#4120")
outsuffix.append("G90")
if command == "message":
if OUTPUT_COMMENTS is False:
@@ -590,9 +675,11 @@ def parse(pathobj):
outstring.insert(0, (linenumber()))
# append the line to the final output
for w in outstring:
out += w.upper() + COMMAND_SPACE
out += COMMAND_SPACE.join(outstring).upper()
out = out.strip() + "\n"
if len(outsuffix) >= 1:
for line in outsuffix:
out += linenumber() + line + "\n"
return out