If you’re so inclined (and own Adobe Illustrator), VECTORTUTS will show you how to make professional-grade exploded isometric technical illustrations* to explain whatever machine you like.
*These are the types of diagrams used in patents and other technical illustrations. Isometric, in this case, means a representation of a three-dimensional object in which lines that are parallel in the three-dimensional world are represented as parallel lines in a two-dimensional drawing. In other words, the style ignores the law of perspective that says parallel lines will appear to converge at the horizon line (as seen in Q-Bert and the Sims). Exploded means the individual pieces of an object are separated, so you can see how they all fit together (as seen in product assembly manuals).