Getting from your "invention living in your brain", to an actual functioning method is called "reducing the invention to practice", and almost invariably leads to the discovery of your number of difficulties with details that are not clearly evident when only surviving in your brain. Producing a model or prototype http://marcollhz31260.tinyblogging.com/Invention-Prototypes-and-Models-Valuable-Tools-For-your-Small-Inventor--30217193