Creating basic shapes and extruding the faces to make more complex structures.
Create polygon primitive, but make sure to turn off interactive creation so that
Maya just creates a simple shape you can then resize.
Right click and hold to bring up this menu, it allows you to select in different
ways, for example Edge allows you to select just the edges of the shape.
In this case select Face and click on the faceyou want to extrude.
Click on the extrude symbol in the tool bar.
Drag the face to extrude. At this point you can also resize the extrusion
as shown above so that when you drag the extruded face is smaller.
