5db753ae0a
Restores the retract behaviour to pre f7b73e8. After f7b73e8 Retract Height is no longer used.
305 lines
11 KiB
Python
305 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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# ***************************************************************************
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# * Copyright (c) 2014 Yorik van Havre <yorik@uncreated.net> *
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# * Copyright (c) 2020 Schildkroet *
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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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from __future__ import print_function
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from Generators import drill_generator as generator
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import FreeCAD
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import Part
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import Path
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import PathFeedRate
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import PathMachineState
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import PathScripts.PathCircularHoleBase as PathCircularHoleBase
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import PathScripts.PathLog as PathLog
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import PathScripts.PathOp as PathOp
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import PathScripts.PathUtils as PathUtils
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from PySide.QtCore import QT_TRANSLATE_NOOP
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__title__ = "Path Drilling Operation"
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__author__ = "sliptonic (Brad Collette)"
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__url__ = "https://www.freecadweb.org"
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__doc__ = "Path Drilling operation."
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__contributors__ = "IMBack!"
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if False:
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PathLog.setLevel(PathLog.Level.DEBUG, PathLog.thisModule())
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PathLog.trackModule(PathLog.thisModule())
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else:
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PathLog.setLevel(PathLog.Level.INFO, PathLog.thisModule())
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translate = FreeCAD.Qt.translate
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class ObjectDrilling(PathCircularHoleBase.ObjectOp):
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"""Proxy object for Drilling operation."""
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@classmethod
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def propertyEnumerations(self, dataType="data"):
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"""helixOpPropertyEnumerations(dataType="data")... return property enumeration lists of specified dataType.
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Args:
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dataType = 'data', 'raw', 'translated'
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Notes:
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'data' is list of internal string literals used in code
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'raw' is list of (translated_text, data_string) tuples
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'translated' is list of translated string literals
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"""
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# Enumeration lists for App::PropertyEnumeration properties
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enums = {
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"ReturnLevel": [
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(translate("Path_Drilling", "G99"), "G99"),
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(translate("Path_Drilling", "G98"), "G98"),
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], # How high to retract after a drilling move
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"ExtraOffset": [
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(translate("Path_Drilling", "None"), "None"),
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(translate("Path_Drilling", "Drill Tip"), "Drill Tip"),
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(translate("Path_Drilling", "2x Drill Tip"), "2x Drill Tip"),
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], # extra drilling depth to clear drill taper
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}
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if dataType == "raw":
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return enums
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data = list()
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idx = 0 if dataType == "translated" else 1
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PathLog.debug(enums)
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for k, v in enumerate(enums):
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data.append((v, [tup[idx] for tup in enums[v]]))
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PathLog.debug(data)
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return data
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def circularHoleFeatures(self, obj):
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"""circularHoleFeatures(obj) ... drilling works on anything, turn on all Base geometries and Locations."""
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return (
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PathOp.FeatureBaseGeometry | PathOp.FeatureLocations | PathOp.FeatureCoolant
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)
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def initCircularHoleOperation(self, obj):
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"""initCircularHoleOperation(obj) ... add drilling specific properties to obj."""
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obj.addProperty(
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"App::PropertyLength",
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"PeckDepth",
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"Drill",
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QT_TRANSLATE_NOOP(
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"App::Property",
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"Incremental Drill depth before retracting to clear chips",
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),
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)
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obj.addProperty(
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"App::PropertyBool",
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"PeckEnabled",
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"Drill",
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QT_TRANSLATE_NOOP("App::Property", "Enable pecking"),
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)
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obj.addProperty(
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"App::PropertyFloat",
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"DwellTime",
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"Drill",
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QT_TRANSLATE_NOOP("App::Property", "The time to dwell between peck cycles"),
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)
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obj.addProperty(
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"App::PropertyBool",
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"DwellEnabled",
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"Drill",
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QT_TRANSLATE_NOOP("App::Property", "Enable dwell"),
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)
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obj.addProperty(
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"App::PropertyBool",
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"AddTipLength",
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"Drill",
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QT_TRANSLATE_NOOP(
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"App::Property",
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"Calculate the tip length and subtract from final depth",
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),
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)
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obj.addProperty(
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"App::PropertyEnumeration",
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"ReturnLevel",
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"Drill",
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QT_TRANSLATE_NOOP(
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"App::Property", "Controls how tool retracts Default=G99"
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),
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)
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obj.addProperty(
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"App::PropertyDistance",
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"RetractHeight",
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"Drill",
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QT_TRANSLATE_NOOP(
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"App::Property",
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"The height where feed starts and height during retract tool when path is finished while in a peck operation",
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),
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)
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obj.addProperty(
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"App::PropertyEnumeration",
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"ExtraOffset",
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"Drill",
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QT_TRANSLATE_NOOP("App::Property", "How far the drill depth is extended"),
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)
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for n in self.propertyEnumerations():
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setattr(obj, n[0], n[1])
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def circularHoleExecute(self, obj, holes):
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"""circularHoleExecute(obj, holes) ... generate drill operation for each hole in holes."""
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PathLog.track()
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machine = PathMachineState.MachineState()
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self.commandlist.append(Path.Command("(Begin Drilling)"))
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# rapid to clearance height
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command = Path.Command("G0", {"Z": obj.ClearanceHeight.Value})
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machine.addCommand(command)
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self.commandlist.append(command)
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self.commandlist.append(Path.Command("G90")) # Absolute distance mode
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# Calculate offsets to add to target edge
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endoffset = 0.0
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if obj.ExtraOffset == "Drill Tip":
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endoffset = PathUtils.drillTipLength(self.tool)
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elif obj.ExtraOffset == "2x Drill Tip":
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endoffset = PathUtils.drillTipLength(self.tool) * 2
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# http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g98-g99
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self.commandlist.append(Path.Command(obj.ReturnLevel))
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holes = PathUtils.sort_locations(holes, ["x", "y"])
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# This section is technical debt. The computation of the
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# target shapes should be factored out for re-use.
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# This will likely mean refactoring upstream CircularHoleBase to pass
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# spotshapes instead of holes.
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startHeight = obj.StartDepth.Value + self.job.SetupSheet.SafeHeightOffset.Value
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edgelist = []
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for hole in holes:
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v1 = FreeCAD.Vector(hole["x"], hole["y"], obj.StartDepth.Value)
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v2 = FreeCAD.Vector(hole["x"], hole["y"], obj.FinalDepth.Value - endoffset)
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edgelist.append(Part.makeLine(v1, v2))
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# iterate the edgelist and generate gcode
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for edge in edgelist:
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PathLog.debug(edge)
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# move to hole location
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startPoint = edge.Vertexes[0].Point
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command = Path.Command("G0", {"X": startPoint.x, "Y": startPoint.y})
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self.commandlist.append(command)
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machine.addCommand(command)
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command = Path.Command("G0", {"Z": startHeight})
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self.commandlist.append(command)
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machine.addCommand(command)
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# command = Path.Command("G1", {"Z": obj.StartDepth.Value})
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# self.commandlist.append(command)
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# machine.addCommand(command)
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# Technical Debt: We are assuming the edges are aligned.
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# This assumption should be corrected and the necessary rotations
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# performed to align the edge with the Z axis for drilling
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# Perform drilling
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dwelltime = obj.DwellTime if obj.DwellEnabled else 0.0
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peckdepth = obj.PeckDepth.Value if obj.PeckEnabled else 0.0
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repeat = 1 # technical debt: Add a repeat property for user control
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try:
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drillcommands = generator.generate(
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edge, dwelltime, peckdepth, repeat, obj.RetractHeight.Value
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)
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except ValueError as e: # any targets that fail the generator are ignored
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PathLog.info(e)
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continue
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for command in drillcommands:
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self.commandlist.append(command)
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machine.addCommand(command)
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# Cancel canned drilling cycle
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self.commandlist.append(Path.Command("G80"))
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command = Path.Command("G0", {"Z": obj.SafeHeight.Value})
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self.commandlist.append(command)
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machine.addCommand(command)
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# Apply feedrates to commands
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PathFeedRate.setFeedRate(self.commandlist, obj.ToolController)
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def opSetDefaultValues(self, obj, job):
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"""opSetDefaultValues(obj, job) ... set default value for RetractHeight"""
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obj.ExtraOffset = "None"
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if hasattr(job.SetupSheet, "RetractHeight"):
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obj.RetractHeight = job.SetupSheet.RetractHeight
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elif self.applyExpression(
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obj, "RetractHeight", "StartDepth+SetupSheet.SafeHeightOffset"
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):
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if not job:
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obj.RetractHeight = 10
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else:
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obj.RetractHeight.Value = obj.StartDepth.Value + 1.0
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if hasattr(job.SetupSheet, "PeckDepth"):
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obj.PeckDepth = job.SetupSheet.PeckDepth
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elif self.applyExpression(obj, "PeckDepth", "OpToolDiameter*0.75"):
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obj.PeckDepth = 1
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if hasattr(job.SetupSheet, "DwellTime"):
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obj.DwellTime = job.SetupSheet.DwellTime
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else:
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obj.DwellTime = 1
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def SetupProperties():
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setup = []
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setup.append("PeckDepth")
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setup.append("PeckEnabled")
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setup.append("DwellTime")
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setup.append("DwellEnabled")
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setup.append("AddTipLength")
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setup.append("ReturnLevel")
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setup.append("ExtraOffset")
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setup.append("RetractHeight")
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return setup
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def Create(name, obj=None, parentJob=None):
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"""Create(name) ... Creates and returns a Drilling operation."""
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if obj is None:
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obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", name)
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obj.Proxy = ObjectDrilling(obj, name, parentJob)
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if obj.Proxy:
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obj.Proxy.findAllHoles(obj)
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return obj
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