The sketch_export.py script is a simple tool for exporting Blender objects to the Sketch scene description language. Sketch is a small, simple system for producing line drawings of two- or three-dimensional solid objects and scenes. Sketch outputs PGF/TikZ or PSTricks code suitable for use in TeX/LaTeX documents. A unique feature of Sketch is that you can easily use LaTeX to annotate your drawings.
Please note that this script only works for Blender 2.4x. It will not run on the latest version of Blender.