Continued working through the examples on ParametricParts.com, adding 3 more and fixing some variables that weren't updated in some of the older examples.

examples/FreeCAD/Ex008_Polygon_Creation.py

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+#File: Ex008_Polygon_Creation.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 Ex008_Polygon_Creation
+
+#If you need to reload the part after making a change, you can use the following lines within the FreeCAD console.
+#reload(Ex008_Polygon_Creation)
+
+#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 model. These can be modified rather than changing the box's code directly.
+width = 3.0
+height = 4.0
+thickness = 0.25
+polygon_sides = 6
+polygon_dia = 1.0
+
+#Create a plate with two polygons cut through it
+result = cadquery.Workplane("front").box(width, height, thickness).pushPoints ( [ ( 0,0.75 ),(0,-0.75) ]) \
+    .polygon(polygon_sides, polygon_dia).cutThruAll()
+
+#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