Class Idea: Contraptionist

I must say, I like this idea simply because it is original(evrything can be considered unoriginal if you dig deep enough), and it sets itself up to be easily balanced. I like that you posted the intended weaknesses and strengths of the class. I think Anet knows what they are doing enough that they will not take the idea and use it as it is, but rather use ideas and implement them in ways that will work well with the current game setup. That may be a more optomistic view than what most would express, but I think it is reasonable.
anyway,
good idea

MacGiver for the win!