After I built Prime and a couple other Transformer robots, I decided to build this "Protoform" as a starter model for future designs. It's made building the new guys alot easier. I didn't have to start from scratch every time. I've included both of the basic head designs, as well as a starter rifle. You're welcome to download this model and improve on it, or use it to come up with some of your own bots. Enjoy.