Tool change support for gcode from excellon. Untested.

FlatCAMObj.py

@@ -564,7 +564,9 @@ class FlatCAMExcellon(FlatCAMObj, Excellon):
             "travelz": 0.1,
             "feedrate": 5.0,
             # "toolselection": ""
-            "tooldia": 0.1
+            "tooldia": 0.1,
+            "toolchange": False,
+            "toolchangez": 1.0
         })
 
         # TODO: Document this.
@@ -691,7 +693,9 @@ class FlatCAMExcellon(FlatCAMObj, Excellon):
             # job_obj.options["tooldia"] =
 
             tools_csv = ','.join(tools)
-            job_obj.generate_from_excellon_by_tool(self, tools_csv)
+            job_obj.generate_from_excellon_by_tool(self, tools_csv,
+                                                   toolchange=self.options["toolchange"],
+                                                   toolchangez=self.options["toolchangez"])
 
             app_obj.progress.emit(50)
             job_obj.gcode_parse()

GUIElements.py

@@ -227,4 +227,29 @@ class VerticalScrollArea(QtGui.QScrollArea):
             # else:
             #     FlatCAMApp.App.log.debug(" Scroll bar hidden")
             #     self.setMinimumWidth(self.widget().minimumSizeHint().width())
-        return QtGui.QWidget.eventFilter(self, source, event)
+        return QtGui.QWidget.eventFilter(self, source, event)
+
+
+class OptionalInputSection():
+
+    def __init__(self, cb, optinputs):
+        assert isinstance(cb, FCCheckBox)
+
+        self.cb = cb
+        self.optinputs = optinputs
+
+        self.on_cb_change()
+        self.cb.stateChanged.connect(self.on_cb_change)
+
+    def on_cb_change(self):
+
+        if self.cb.checkState():
+
+            for widget in self.optinputs:
+                widget.setEnabled(True)
+
+        else:
+
+            for widget in self.optinputs:
+                widget.setEnabled(False)
+

ObjectUI.py

@@ -346,7 +346,8 @@ class ExcellonObjectUI(ObjectUI):
     def __init__(self, parent=None):
         ObjectUI.__init__(self, title='Excellon Object', icon_file='share/drill32.png', parent=parent)
 
-        ## Plot options
+        #### Plot options ####
+
         self.plot_options_label = QtGui.QLabel("<b>Plot Options:</b>")
         self.custom_box.addWidget(self.plot_options_label)
 
@@ -363,7 +364,8 @@ class ExcellonObjectUI(ObjectUI):
         )
         grid0.addWidget(self.solid_cb, 0, 1)
 
-        ## Tools
+        #### Tools ####
+
         self.tools_table_label = QtGui.QLabel('<b>Tools</b>')
         self.tools_table_label.setToolTip(
             "Tools in this Excellon object."
@@ -373,7 +375,8 @@ class ExcellonObjectUI(ObjectUI):
         self.tools_table.setFixedHeight(100)
         self.custom_box.addWidget(self.tools_table)
 
-        ## Create CNC Job
+        #### Create CNC Job ####
+
         self.cncjob_label = QtGui.QLabel('<b>Create CNC Job</b>')
         self.cncjob_label.setToolTip(
             "Create a CNC Job object\n"
@@ -411,6 +414,28 @@ class ExcellonObjectUI(ObjectUI):
         self.feedrate_entry = LengthEntry()
         grid1.addWidget(self.feedrate_entry, 2, 1)
 
+        # Tool change:
+        toolchlabel = QtGui.QLabel("Tool change:")
+        toolchlabel.setToolTip(
+            "Include tool-change sequence\n"
+            "in G-Code (Pause for tool change)."
+        )
+        self.toolchange_cb = FCCheckBox()
+        grid1.addWidget(toolchlabel, 3, 0)
+        grid1.addWidget(self.toolchange_cb, 3, 1)
+
+        # Tool change Z:
+        toolchzlabel = QtGui.QLabel("Tool change Z:")
+        toolchzlabel.setToolTip(
+            "Z-axis position (height) for\n"
+            "tool change."
+        )
+        grid1.addWidget(toolchzlabel, 4, 0)
+        self.toolchangez_entry = LengthEntry()
+        grid1.addWidget(self.toolchangez_entry, 4, 1)
+        self.ois_tcz = OptionalInputSection(self.toolchange_cb, [self.toolchangez_entry])
+
+
         choose_tools_label = QtGui.QLabel(
             "Select from the tools section above\n"
             "the tools you want to include."
@@ -423,7 +448,7 @@ class ExcellonObjectUI(ObjectUI):
         )
         self.custom_box.addWidget(self.generate_cnc_button)
 
-        ## Milling Holes
+        #### Milling Holes ####
         self.mill_hole_label = QtGui.QLabel('<b>Mill Holes</b>')
         self.mill_hole_label.setToolTip(
             "Create Geometry for milling holes."
@@ -453,6 +478,7 @@ class ExcellonObjectUI(ObjectUI):
         )
         self.custom_box.addWidget(self.generate_milling_button)
 
+
 class GerberObjectUI(ObjectUI):
     """
     User interface for Gerber objects.

camlib.py

@@ -2493,7 +2493,8 @@ class CNCjob(Geometry):
 
         return factor
 
-    def generate_from_excellon_by_tool(self, exobj, tools="all"):
+    def generate_from_excellon_by_tool(self, exobj, tools="all",
+                                       toolchange=False, toolchangez=0.1):
         """
         Creates gcode for this object from an Excellon object
         for the specified tools.
@@ -2508,6 +2509,7 @@ class CNCjob(Geometry):
 
         log.debug("Creating CNC Job from Excellon...")
 
+        # Tools
         if tools == "all":
             tools = [tool for tool in exobj.tools]
         else:
@@ -2515,18 +2517,24 @@ class CNCjob(Geometry):
             tools = filter(lambda i: i in exobj.tools, tools)
         log.debug("Tools are: %s" % str(tools))
 
-        points = []
+        # Points (Group by tool)
+        points = {}
         for drill in exobj.drills:
             if drill['tool'] in tools:
-                points.append(drill['point'])
+                try:
+                    points[drill['tool']].append(drill['point'])
+                except KeyError:
+                    points[drill['tool']] = [drill['point']]
 
-        log.debug("Found %d drills." % len(points))
+        #log.debug("Found %d drills." % len(points))
         self.gcode = []
 
+        # Basic G-Code macros
         t = "G00 " + CNCjob.defaults["coordinate_format"] + "\n"
         down = "G01 Z%.4f\n" % self.z_cut
         up = "G01 Z%.4f\n" % self.z_move
 
+        # Initialization
         gcode = self.unitcode[self.units.upper()] + "\n"
         gcode += self.absolutecode + "\n"
         gcode += self.feedminutecode + "\n"
@@ -2535,10 +2543,17 @@ class CNCjob(Geometry):
         gcode += "M03\n"  # Spindle start
         gcode += self.pausecode + "\n"
 
-        for point in points:
+        for tool in points:
-            x, y = point.coords.xy
+            if toolchange:
-            gcode += t % (x[0], y[0])
+                gcode += "G00 Z%.4f\n" % toolchangez
-            gcode += down + up
+                gcode += "M5\n"  # Spindle Stop
+                gcode += "M6\n"  # Tool change
+                gcode += "M0\n"  # Temporary machine stop
+                gcode += "M3\n"  # Spindle on clockwise
+            for point in points[tool]:
+                x, y = point.coords.xy
+                gcode += t % (x[0], y[0])
+                gcode += down + up
 
         gcode += t % (0, 0)
         gcode += "M05\n"  # Spindle stop

tests/destructor_test.py

@@ -8,7 +8,7 @@ class MyObj():
         pass
 
     def __del__(self):
-        print "##### Distroyed ######"
+        print "##### Destroyed ######"
 
 
 def parse():