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# ***************************************************************************
# * Copyright (c) 2014 Yorik van Havre <yorik@uncreated.net> *
# * Copyright (c) 2020 Schildkroet *
# * Copyright (c) 2023 luvtofish *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENSE text file. *
# * *
# * This program is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
import FreeCAD
import Part
import Path
import Path.Base.FeedRate as PathFeedRate
import Path.Base.Generator.tapping as tapping
import Path.Base.MachineState as PathMachineState
import Path.Op.Base as PathOp
import Path.Op.CircularHoleBase as PathCircularHoleBase
import PathScripts.PathUtils as PathUtils
from PySide.QtCore import QT_TRANSLATE_NOOP
__title__ = "Path Tapping Operation"
__author__ = "sliptonic (Brad Collette)"
__url__ = "https://www.freecad.org"
__doc__ = "Path Tapping operation."
__contributors__ = "luvtofish (Dan Henderson)"
if False:
Path.Log.setLevel(Path.Log.Level.DEBUG, Path.Log.thisModule())
Path.Log.trackModule(Path.Log.thisModule())
else:
Path.Log.setLevel(Path.Log.Level.INFO, Path.Log.thisModule())
translate = FreeCAD.Qt.translate
class ObjectTapping(PathCircularHoleBase.ObjectOp):
"""Proxy object for Tapping operation."""
@classmethod
def propertyEnumerations(self, dataType="data"):
"""helixOpPropertyEnumerations(dataType="data")... return property enumeration lists of specified dataType.
Args:
dataType = 'data', 'raw', 'translated'
Notes:
'data' is list of internal string literals used in code
'raw' is list of (translated_text, data_string) tuples
'translated' is list of translated string literals
"""
# Enumeration lists for App::PropertyEnumeration properties
enums = {
"ReturnLevel": [
(translate("CAM_Tapping", "G98"), "G98"),
(translate("CAM_Tapping", "G99"), "G99"),
], # How high to retract after a tapping move
"ExtraOffset": [
(translate("CAM_Tapping", "None"), "None"),
(translate("CAM_Tapping", "Drill Tip"), "Drill Tip"),
(translate("CAM_Tapping", "2x Drill Tip"), "2x Drill Tip"),
], # extra drilling depth to clear tap taper
}
if dataType == "raw":
return enums
data = list()
idx = 0 if dataType == "translated" else 1
Path.Log.debug(enums)
for k, v in enumerate(enums):
data.append((v, [tup[idx] for tup in enums[v]]))
Path.Log.debug(data)
return data
def circularHoleFeatures(self, obj):
"""circularHoleFeatures(obj) ... tapping works on anything, turn on all Base geometries and Locations."""
return PathOp.FeatureBaseGeometry | PathOp.FeatureLocations | PathOp.FeatureCoolant
def initCircularHoleOperation(self, obj):
"""initCircularHoleOperation(obj) ... add tapping specific properties to obj."""
obj.addProperty(
"App::PropertyFloat",
"DwellTime",
"Tap",
QT_TRANSLATE_NOOP("App::Property", "The time to dwell at bottom of tapping cycle"),
)
obj.addProperty(
"App::PropertyBool",
"DwellEnabled",
"Tap",
QT_TRANSLATE_NOOP("App::Property", "Enable dwell"),
)
obj.addProperty(
"App::PropertyBool",
"AddTipLength",
"Tap",
QT_TRANSLATE_NOOP(
"App::Property",
"Calculate the tip length and subtract from final depth",
),
)
obj.addProperty(
"App::PropertyEnumeration",
"ReturnLevel",
"Tap",
QT_TRANSLATE_NOOP("App::Property", "Controls how tool retracts Default=G98"),
)
obj.addProperty(
"App::PropertyDistance",
"RetractHeight",
"Tap",
QT_TRANSLATE_NOOP(
"App::Property",
"The height where feed starts and height during retract tool when path is finished while in a peck operation",
),
)
obj.addProperty(
"App::PropertyEnumeration",
"ExtraOffset",
"Tap",
QT_TRANSLATE_NOOP("App::Property", "How far the tap depth is extended"),
)
for n in self.propertyEnumerations():
setattr(obj, n[0], n[1])
def circularHoleExecute(self, obj, holes):
"""circularHoleExecute(obj, holes) ... generate tapping operation for each hole in holes."""
Path.Log.track()
machine = PathMachineState.MachineState()
if not hasattr(obj.ToolController.Tool, "Pitch"):
Path.Log.error(
translate(
"Path_Tapping",
"Tapping Operation requires a Tap tool with Pitch",
)
)
return
self.commandlist.append(Path.Command("(Begin Tapping)"))
# rapid to clearance height
command = Path.Command("G0", {"Z": obj.ClearanceHeight.Value})
machine.addCommand(command)
self.commandlist.append(command)
self.commandlist.append(Path.Command("G90")) # Absolute distance mode
# Calculate offsets to add to target edge
endoffset = 0.0
if obj.ExtraOffset == "Drill Tip":
endoffset = PathUtils.drillTipLength(self.tool)
elif obj.ExtraOffset == "2x Drill Tip":
endoffset = PathUtils.drillTipLength(self.tool) * 2
# http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g98-g99
self.commandlist.append(
Path.Command(obj.ReturnLevel).addAnnotations({"operation": "tapping"})
)
# This section is technical debt. The computation of the
# target shapes should be factored out for reuse.
# This will likely mean refactoring upstream CircularHoleBase to pass
# spot shapes instead of holes.
startHeight = obj.StartDepth.Value + self.job.SetupSheet.SafeHeightOffset.Value
edgelist = []
for hole in holes:
v1 = FreeCAD.Vector(hole["x"], hole["y"], obj.StartDepth.Value)
v2 = FreeCAD.Vector(hole["x"], hole["y"], obj.FinalDepth.Value - endoffset)
edgelist.append(Part.makeLine(v1, v2))
# iterate the edgelist and generate gcode
for edge in edgelist:
Path.Log.debug(edge)
# move to hole location
startPoint = edge.Vertexes[0].Point
command = Path.Command(
"G0", {"X": startPoint.x, "Y": startPoint.y, "Z": startHeight}
) # DLH added Z offset to fix issue with Dynapath Control.
self.commandlist.append(command)
machine.addCommand(command)
# command = Path.Command("G0", {"Z": startHeight})
# self.commandlist.append(command)
# machine.addCommand(command)
# command = Path.Command("G1", {"Z": obj.StartDepth.Value})
# self.commandlist.append(command)
# machine.addCommand(command)
# Technical Debt: We are assuming the edges are aligned.
# This assumption should be corrected and the necessary rotations
# performed to align the edge with the Z axis for drilling
# Perform tapping
dwelltime = obj.DwellTime if obj.DwellEnabled else 0.0
repeat = 1 # technical debt: Add a repeat property for user control
# Get attribute from obj.tool, assign default and set to bool for passing to generate
isRightHand = (
getattr(obj.ToolController.Tool, "SpindleDirection", "Forward") == "Forward"
)
# Get pitch in mm as a float (no unit string)
pitch = getattr(obj.ToolController.Tool, "Pitch", None)
if pitch is None or pitch == 0:
Path.Log.error(
translate(
"Path_Tapping",
"Tapping Operation requires a Tap tool with non-zero Pitch",
)
)
continue
spindle_speed = getattr(obj.ToolController, "SpindleSpeed", None)
if spindle_speed is None or spindle_speed == 0:
Path.Log.error(
translate(
"Path_Tapping",
"Tapping Operation requires a ToolController with non-zero SpindleSpeed",
)
)
continue
try:
tappingcommands = tapping.generate(
edge,
dwelltime,
repeat,
obj.RetractHeight.Value,
isRightHand,
pitch,
spindle_speed,
)
except ValueError as e: # any targets that fail the generator are ignored
Path.Log.info(e)
continue
for command in tappingcommands:
self.commandlist.append(command)
machine.addCommand(command)
# Cancel canned tapping cycle
self.commandlist.append(Path.Command("G80").addAnnotations({"operation": "tapping"}))
# command = Path.Command("G0", {"Z": obj.SafeHeight.Value}) DLH- Not needed, adds unnecessary move to Z SafeHeight.
# self.commandlist.append(command)
# machine.addCommand(command) DLH - Not needed.
# Apply feed rates to commands
PathFeedRate.setFeedRate(self.commandlist, obj.ToolController)
def opSetDefaultValues(self, obj, job):
"""opSetDefaultValues(obj, job) ... set default value for RetractHeight"""
obj.ExtraOffset = "None"
if hasattr(job.SetupSheet, "RetractHeight"):
obj.RetractHeight = job.SetupSheet.RetractHeight
elif self.applyExpression(obj, "RetractHeight", "StartDepth+SetupSheet.SafeHeightOffset"):
if not job:
obj.RetractHeight = 10
else:
obj.RetractHeight.Value = obj.StartDepth.Value + 1.0
if hasattr(job.SetupSheet, "DwellTime"):
obj.DwellTime = job.SetupSheet.DwellTime
else:
obj.DwellTime = 1
def SetupProperties():
setup = []
setup.append("DwellTime")
setup.append("DwellEnabled")
setup.append("AddTipLength")
setup.append("ReturnLevel")
setup.append("ExtraOffset")
setup.append("RetractHeight")
return setup
def Create(name, obj=None, parentJob=None):
"""Create(name) ... Creates and returns a Tapping operation."""
if obj is None:
obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", name)
obj.Proxy = ObjectTapping(obj, name, parentJob)
if obj.Proxy:
obj.Proxy.findAllHoles(obj)
return obj
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