patch to reintroduce "Use Machine CRC"

UseMachineCRC.diff

diff --git a/src/Mod/CAM/Gui/Resources/panels/DressUpLeadInOutEdit.ui b/src/Mod/CAM/Gui/Resources/panels/DressUpLeadInOutEdit.ui
index 5edf0b83fa..3229815d12 100644
--- a/src/Mod/CAM/Gui/Resources/panels/DressUpLeadInOutEdit.ui
+++ b/src/Mod/CAM/Gui/Resources/panels/DressUpLeadInOutEdit.ui
@@ -221,6 +221,13 @@
      </property>
     </spacer>
    </item>
+   <item>
+     <widget class="QCheckBox" name="chkUseCRC">
+       <property name="text">
+         <string>Use Machine CRC</string>
+       </property>
+     </widget>
+   </item>
   </layout>
  </widget>
  <customwidgets>
diff --git a/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py b/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py
index 3411cc3a2d..ab5fb8aaf2 100644
--- a/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py
+++ b/src/Mod/CAM/Path/Dressup/Gui/LeadInOut.py
@@ -78,6 +78,15 @@ class ObjectDressup:
             "Path",
             QT_TRANSLATE_NOOP("App::Property", "Keep the Tool Down in toolpath"),
         )
+        obj.addProperty(
+            "App::PropertyBool",
+            "UseMachineCRC",
+            "Path",
+            QT_TRANSLATE_NOOP(
+                "App::Property",
+                "Use Machine Cutter Radius Compensation /Tool Path Offset G41/G42",
+            ),
+        )
         obj.addProperty(
             "App::PropertyDistance",
             "Length",
@@ -137,6 +146,8 @@ class ObjectDressup:
         return None
 
     def loads(self, state):
+        if not "UseMachineCRC" in self.__dict__:
+            self.UseMachineCRC = false
         return None
 
     def setup(self, obj):
@@ -145,6 +156,7 @@ class ObjectDressup:
         obj.LeadIn = True
         obj.LeadOut = True
         obj.KeepToolDown = False
+        obj.UseMachineCRC = False
         obj.StyleOn = "Arc"
         obj.StyleOff = "Arc"
         obj.ExtendLeadIn = 0
@@ -192,6 +204,7 @@ class ObjectDressup:
     def getTravelStart(self, obj, pos, first):
         op = PathDressup.baseOp(obj.Base)
         vertfeed = PathDressup.toolController(obj.Base).VertFeed.Value
+        toolnumber = PathDressup.toolController(obj.Base).ToolNumber
         travel = []
 
         # begin positions for travel and plunge moves are not used anywhere,
@@ -212,12 +225,21 @@ class ObjectDressup:
                 travel.append(PathLanguage.MoveStraight(None, "G0", {"Z": op.SafeHeight.Value}))
             travel.append(PathLanguage.MoveStraight(None, "G1", {"Z": pos.z, "F": vertfeed}))
 
+        if obj.UseMachineCRC:
+            if self.getDirectionOfPath(obj) == "right":
+                travel.append(PathLanguage.Instruction(None, "G42", {"D": toolnumber}))
+            else:
+                travel.append(PathLanguage.Instruction(None, "G41", {"D": toolnumber}))
+
         return travel
 
     def getTravelEnd(self, obj, pos, last):
         op = PathDressup.baseOp(obj.Base)
         travel = []
 
+        if obj.UseMachineCRC:
+            travel.append(PathLanguage.Instruction(None, "G40", {}))
+
         # move to clearance height
         if last or not obj.KeepToolDown:
             travel.append(PathLanguage.MoveStraight(None, "G0", {"Z": op.ClearanceHeight.Value}))
@@ -393,6 +415,7 @@ class TaskDressupLeadInOut(SimpleEditPanel):
         self.connectWidget("RapidPlunge", self.form.chkRapidPlunge)
         self.connectWidget("IncludeLayers", self.form.chkLayers)
         self.connectWidget("KeepToolDown", self.form.chkKeepToolDown)
+        self.connectWidget("UseMachineCRC", self.form.chkUseCRC)
         self.setFields()