# SPDX-License-Identifier: LGPL-2.1-or-later # *************************************************************************** # * Copyright (c) 2014 Yorik van Havre * # * Copyright (c) 2020 Schildkroet * # * * # * 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 LICENCE 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.drill as drill import Path.Base.Generator.linking as linking 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__ = "CAM Drilling Operation" __author__ = "sliptonic (Brad Collette)" __url__ = "https://www.freecad.org" __doc__ = "CAM Drilling operation." __contributors__ = "IMBack!" 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 ObjectDrilling(PathCircularHoleBase.ObjectOp): """Proxy object for Drilling 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 = { "ExtraOffset": [ (translate("CAM_Drilling", "None"), "None"), (translate("CAM_Drilling", "Drill Tip"), "Drill Tip"), (translate("CAM_Drilling", "2x Drill Tip"), "2x Drill Tip"), ], # extra drilling depth to clear drill 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) ... drilling works on anything, turn on all Base geometries and Locations.""" return PathOp.FeatureBaseGeometry | PathOp.FeatureLocations | PathOp.FeatureCoolant def onDocumentRestored(self, obj): if not hasattr(obj, "chipBreakEnabled"): obj.addProperty( "App::PropertyBool", "chipBreakEnabled", "Drill", QT_TRANSLATE_NOOP("App::Property", "Use chipbreaking"), ) if not hasattr(obj, "feedRetractEnabled"): obj.addProperty( "App::PropertyBool", "feedRetractEnabled", "Drill", QT_TRANSLATE_NOOP("App::Property", "Use G85 boring cycle with feed out"), ) if hasattr(obj, "RetractMode"): obj.removeProperty("RetractMode") if not hasattr(obj, "KeepToolDown"): obj.addProperty( "App::PropertyBool", "KeepToolDown", "Drill", QT_TRANSLATE_NOOP( "App::Property", "Apply G99 retraction: only retract to RetractHeight between holes in this operation", ), ) def initCircularHoleOperation(self, obj): """initCircularHoleOperation(obj) ... add drilling specific properties to obj.""" obj.addProperty( "App::PropertyLength", "PeckDepth", "Drill", QT_TRANSLATE_NOOP( "App::Property", "Incremental Drill depth before retracting to clear chips", ), ) obj.addProperty( "App::PropertyBool", "PeckEnabled", "Drill", QT_TRANSLATE_NOOP("App::Property", "Enable pecking"), ) obj.addProperty( "App::PropertyBool", "chipBreakEnabled", "Drill", QT_TRANSLATE_NOOP("App::Property", "Use chipbreaking"), ) obj.addProperty( "App::PropertyFloat", "DwellTime", "Drill", QT_TRANSLATE_NOOP("App::Property", "The time to dwell between peck cycles"), ) obj.addProperty( "App::PropertyBool", "DwellEnabled", "Drill", QT_TRANSLATE_NOOP("App::Property", "Enable dwell"), ) obj.addProperty( "App::PropertyBool", "AddTipLength", "Drill", QT_TRANSLATE_NOOP( "App::Property", "Calculate the tip length and subtract from final depth", ), ) obj.addProperty( "App::PropertyDistance", "RetractHeight", "Drill", QT_TRANSLATE_NOOP( "App::Property", "The height where cutting feed rate starts and retract height for peck operation", ), ) obj.addProperty( "App::PropertyEnumeration", "ExtraOffset", "Drill", QT_TRANSLATE_NOOP("App::Property", "How far the drilling depth is extended"), ) obj.addProperty( "App::PropertyBool", "KeepToolDown", "Drill", QT_TRANSLATE_NOOP( "App::Property", "Apply G99 retraction: only retract to RetractHeight between holes in this operation", ), ) obj.addProperty( "App::PropertyBool", "feedRetractEnabled", "Drill", QT_TRANSLATE_NOOP("App::Property", "Use G85 boring cycle with feed out"), ) def circularHoleExecute(self, obj, holes): """circularHoleExecute(obj, holes) ... generate drill operation for each hole in holes.""" Path.Log.track() machinestate = PathMachineState.MachineState() mode = "G99" if obj.KeepToolDown else "G98" # 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 # compute the drilling targets 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)) # build list of solids for collision detection. # Include base objects from job solids = [] for base in job.BaseObjects: solids.append(base.Shape) # http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g98-g99 # 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 # spotshapes instead of holes. # Start computing the Path self.commandlist.append(Path.Command("(Begin Drilling)")) # Make sure tool is at a clearance height command = Path.Command("G0", {"Z": obj.ClearanceHeight.Value}) # machine.addCommand(command) self.commandlist.append(command) # iterate the edgelist and generate gcode firstMove = True for edge in edgelist: Path.Log.debug(edge) # Get the target start point startPoint = edge.Vertexes[0].Point # Get linking moves from current to start of target if firstMove: # Build manually command = Path.Command("G0", {"X": startPoint.x, "Y": startPoint.y}) self.commandlist.append(command) machinestate.addCommand(command) command = Path.Command("G0", {"Z": obj.SafeHeight.Value}) self.commandlist.append(command) machinestate.addCommand(command) firstMove = False else: # Use get_linking_moves generator linking_moves = linking.get_linking_moves( machinestate.getPosition(), startPoint, obj.ClearanceHeight.Value, obj.SafeHeight.Value, self.tool, solids, obj.RetractHeight.Value, ) if len(linking_moves) == 1: # straight move possible. Do nothing. pass else: self.commandlist.extend(linking_moves) # Perform drilling dwelltime = obj.DwellTime if obj.DwellEnabled else 0.0 peckdepth = obj.PeckDepth.Value if obj.PeckEnabled else 0.0 repeat = 1 # technical debt: Add a repeat property for user control chipBreak = obj.chipBreakEnabled and obj.PeckEnabled try: drillcommands = drill.generate( edge, dwelltime, peckdepth, repeat, obj.RetractHeight.Value, chipBreak=chipBreak, feedRetract=obj.feedRetractEnabled, ) except ValueError as e: # any targets that fail the generator are ignored Path.Log.info(e) continue # Set RetractMode annotation for each command for command in drillcommands: annotations = command.Annotations annotations["RetractMode"] = mode command.Annotations = annotations self.commandlist.append(command) # machine.addCommand(command) # Apply feedrates to commands PathFeedRate.setFeedRate(self.commandlist, obj.ToolController) def opSetDefaultValues(self, obj, job): """opSetDefaultValues(obj, job) ... set default value for RetractHeight""" obj.ExtraOffset = "None" obj.KeepToolDown = False # default to safest option: G98 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, "PeckDepth"): obj.PeckDepth = job.SetupSheet.PeckDepth elif self.applyExpression(obj, "PeckDepth", "OpToolDiameter*0.75"): obj.PeckDepth = 1 if hasattr(job.SetupSheet, "DwellTime"): obj.DwellTime = job.SetupSheet.DwellTime else: obj.DwellTime = 1 def SetupProperties(): setup = [] setup.append("PeckDepth") setup.append("PeckEnabled") setup.append("DwellTime") setup.append("DwellEnabled") setup.append("AddTipLength") setup.append("ExtraOffset") setup.append("RetractHeight") setup.append("KeepToolDown") return setup def Create(name, obj=None, parentJob=None): """Create(name) ... Creates and returns a Drilling operation.""" if obj is None: obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", name) obj.Proxy = ObjectDrilling(obj, name, parentJob) if obj.Proxy: obj.Proxy.findAllHoles(obj) return obj