Added the example for using FreeCAD and CQ objects interchangably.

examples/FreeCAD/Ex024_Using_FreeCAD_Solids_as_CQ_Objects.py

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+#File: Ex024_Using_FreeCAD_Solids_as_CQ_Objects.py
+#To use this example file, you need to first follow the "Using CadQuery From Inside FreeCAD"
+#instructions here: https://github.com/dcowden/cadquery#installing----using-cadquery-from-inside-freecad
+
+#You run this example by typing the following in the FreeCAD python console, making sure to change
+#the path to this example, and the name of the example appropriately.
+#import sys
+#sys.path.append('/home/user/Downloads/cadquery/examples/FreeCAD')
+#import Ex024_Using_FreeCAD_Solids_as_CQ_Objects
+
+#If you need to reload the part after making a change, you can use the following lines within the FreeCAD console.
+#reload(Ex024_Using_FreeCAD_Solids_as_CQ_Objects)
+
+#You'll need to delete the original shape that was created, and the new shape should be named sequentially (Shape001, etc).
+
+#You can also tie these blocks of code to macros, buttons, and keybindings in FreeCAD for quicker access.
+#You can get a more information on this example at http://parametricparts.com/docs/examples.html#an-extruded-prismatic-solid
+
+import cadquery, FreeCAD, Part
+
+#Create a new document that we can draw our modle on
+newDoc = FreeCAD.newDocument()
+
+#shows a 1x1x1 FreeCAD cube in the display
+initialBox = newDoc.addObject("Part::Box","initialBox")
+newDoc.recompute()
+
+#Make a CQ object
+cqBox = cadquery.CQ(cadquery.Solid(initialBox.Shape))
+
+#Extrude a peg
+newThing = cqBox.faces(">Z").workplane().circle(0.5).extrude(0.25)
+
+#Add a FreeCAD object to the tree and then store a CQ object in it
+nextShape = newDoc.addObject("Part::Feature","nextShape")
+nextShape.Shape = newThing.val().wrapped
+
+#Rerender the doc to see what the new solid looks like
+newDoc.recompute()
+
+#Would like to zoom to fit the part here, but FreeCAD doesn't seem to have that scripting functionality