Added FreeCAD examples 5 through 7 and cleaned up the other examples a tiny bit.

examples/FreeCAD/Ex005_Extruded_Lines_and_Arcs.py

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+#File: Ex005_Extruded_Lines_and_Arcs.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 Ex005_Extruded_Lines_and_Arcs
+
+#If you need to reload the part after making a change, you can use the following lines within the FreeCAD console.
+#reload(Ex005_Extruded_Lines_and_Arcs)
+
+#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
+import Part
+
+#The dimensions of the box. These can be modified rather than changing the box's code directly.
+circle_radius = 50.0
+rectangle_width = 13.0
+rectange_length = 19.0
+thickness = 13.0
+
+#Extrude a plate outline made of lines and an arc
+result = cadquery.Workplane("front").lineTo(2.0,0).lineTo(2.0,1.0).threePointArc((1.0,1.5),(0.0,1.0)).close().extrude(0.25)
+
+#Get a cadquery solid object
+solid = result.val()
+
+#Use the wrapped property of a cadquery primitive to get a FreeCAD solid
+Part.show(solid.wrapped)
+
+#Would like to zoom to fit the part here, but FreeCAD doesn't seem to have that scripting functionality