I have an opportunity today to put in some decent hours on the project so I'm trying to get through the detailed mechanical work. It's one thing to say "it will work like this" and something completely different to have every part, nut, bolt, washer, and bearing fit together correctly with the right tolerances. I am very fortunate to have a full copy of Autodesk Product Design Suite which includes Inventor. In my humble opinion, having also worked with Solid Works, Catia and  Solid Edge, it is the best design package available. It requires plenty of attention to detail but if done properly it will produce an up to date set of drawings, exploded views and B.O.M's with part numbers, weights and quantities all from one assembly. It also allows motion simulation of the assembly with exporting of loads to F.E.A. I will try post a video of this some time.

So most of today will be dedicated to detail work on the design to ensure that the CAD model will be properly representative of what I am building.