An RPC(Rapid Prototyping Center) can be an incredibly useful tool in prototyping and building anything. However, most people don't have access to an RPC, Hacker space, nor maker space. This is to help you build your own. To begin prototyping you will need to choose one of three basic
machines, a CNC mill, a laser cutter, or a 3D printer. Likely you will acquire more than one of these machines it the future.
Summary of CNC:A CNC mill is a subtractive process that runs what is basically a high speed of drill bit over wood, aluminum, and some plastics. This can layer and cut material, but with current low cost CNC machines you cannot have overhangs.