Added coolant support to grbl_post

Improved canned cycles

Added/translated comments

src/Mod/Path/PathScripts/PathDrilling.py

@@ -162,6 +162,7 @@ def circularHoleExecute(self, obj, holes):
 
             # Perform and cancel canned drilling cycle
             self.commandlist.append(Path.Command(cmd, params))
+            self.commandlist.append(Path.Command('G80'))
             self.commandlist.append(Path.Command('G0', {'Z': obj.SafeHeight.Value}))
 
 

src/Mod/Path/PathScripts/post/grbl_post.py

@@ -3,6 +3,7 @@
 # *                                                                         *
 # *   (c) sliptonic (shopinthewoods@gmail.com) 2014                         *
 # *   (c) Gauthier Briere - 2018, 2019                                      *
+# *   (c) Schildkroet - 2019-2020                                           *
 # *                                                                         *
 # *   This file is part of the FreeCAD CAx development system.              *
 # *                                                                         *
@@ -108,7 +109,7 @@
 # ***************************************************************************
 MOTION_COMMANDS = ['G0', 'G00', 'G1', 'G01', 'G2', 'G02', 'G3', 'G03']  # Motion gCode commands definition
 RAPID_MOVES = ['G0', 'G00']                                             # Rapid moves gCode commands definition
-SUPPRESS_COMMANDS = ['G98', 'G80']                                      # These commands are ignored by commenting them out
+SUPPRESS_COMMANDS = []                                      # These commands are ignored by commenting them out
 COMMAND_SPACE = " "
 # Global variables storing current position
 CURRENT_X = 0
@@ -208,6 +209,7 @@ def export(objectslist, filename, argstring):
   global UNIT_FORMAT
   global UNIT_SPEED_FORMAT
   global MOTION_MODE
+  global SUPPRESS_COMMANDS
 
   print("Post Processor: " + __name__ + " postprocessing...")
   gcode = ""
@@ -217,6 +219,13 @@ def export(objectslist, filename, argstring):
     gcode += linenumber() + "(Exported by FreeCAD)\n"
     gcode += linenumber() + "(Post Processor: " + __name__ + ")\n"
     gcode += linenumber() + "(Output Time:" + str(datetime.datetime.now()) + ")\n"
+
+  # Check canned cycles for drilling
+  if TRANSLATE_DRILL_CYCLES:
+    if len(SUPPRESS_COMMANDS) == 0:
+      SUPPRESS_COMMANDS = ['G98', 'G80']
+    else:
+      SUPPRESS_COMMANDS += ['G98', 'G80']
 
   # Write the preamble
   if OUTPUT_COMMENTS:
@@ -259,6 +268,17 @@ def export(objectslist, filename, argstring):
       gcode += linenumber() + "(Begin operation: " + obj.Label + ")\n"
     for line in PRE_OPERATION.splitlines(True):
       gcode += linenumber() + line
+
+    # turn coolant on if required
+    if hasattr(obj, "CoolantMode"):
+        coolantMode = obj.CoolantMode
+        if OUTPUT_COMMENTS:
+            if not coolantMode == 'None':
+                gcode += linenumber() + '(Coolant On:' + coolantMode + ')\n'
+        if coolantMode == 'Flood':
+            gcode  += linenumber() + 'M8' + '\n'
+        if coolantMode == 'Mist':
+            gcode += linenumber() + 'M7' + '\n'
 
     # Parse the op
     gcode += parse(obj)
@@ -269,6 +289,14 @@ def export(objectslist, filename, argstring):
     for line in POST_OPERATION.splitlines(True):
       gcode += linenumber() + line
 
+    # turn coolant off if required
+    if hasattr(obj, "CoolantMode"):
+        coolantMode = obj.CoolantMode
+        if not coolantMode == 'None':
+            if OUTPUT_COMMENTS:
+                gcode += linenumber() + '(Coolant Off:' + coolantMode + ')\n'    
+            gcode  += linenumber() +'M9' + '\n'
+
   # do the post_amble
   if OUTPUT_BCNC:
     gcode += linenumber() + "(Block-name: post_amble)\n"
@@ -380,7 +408,7 @@ def parse(pathobj):
       # store the latest command
       lastcommand = command
 
-      # Memorise la position courante pour calcul des mouvements relatis et du plan de retrait
+      # Memorizes the current position for calculating the related movements and the withdrawal plan
       if command in MOTION_COMMANDS:
         if 'X' in c.Parameters:
           CURRENT_X = Units.Quantity(c.Parameters['X'], FreeCAD.Units.Length)
@@ -398,7 +426,7 @@ def parse(pathobj):
       if TRANSLATE_DRILL_CYCLES:
         if command in ('G81', 'G82', 'G83'):
           out += drill_translate(outstring, command, c.Parameters)
-          # Efface la ligne que l'on vient de translater
+          # Erase the line we just translated
           del(outstring[:])
           outstring = []