As the capstone project for my TEL 347 - Computer Assisted Design and Drafting course I was asked to choose an object of some complexity from the real world to model using Autodesk's AutoCAD. I chose to model the torsion pendulum clock shown in the proposal below.
Below is a PDF of the final rendering of the exploded assembly. You may also download the final DWG file here which should be viewable using AutoCAD. (There is also an overlay of the clock face's decal visible within the final DWG. Note, as the file is very complex, it may take a long time to open on slower computers.)