He came up with the idea for an electronic dartboard while on a trip in Ireland. Rudy was a small machines store owner. The soft tip dartboard was invented in 1975 by a man name Rudy Allison. The invention of soft tip darts is something of a recent occurrence. The worst case scenario is a concrete floor or tiles as both can damage the dart tips. The lighting should be good. As far as the flooring is concerned, the best option is to place a dart mat on it or at least a carpet. Measure 7 feet 9.25 inches out from the wall where the dartboard is hanging and mark a line on the floor behind which players may throw the darts. Hang the dartboard so that the 20 is at the top center of the board and the center of the bull’s-eye is 5 feet 8 inches from the floor. Using an adaptor can be great for providing constant power and not having to worry about the game stopping half way through and needing new batteries. Batteries can get expensive if you plan to use them, and they are disposable and not as good for the environment unless you use reusable ones. These dart boards also have a lot more variations in game modes, some of them have hundreds of different variations. Electronic dart boards also often do a lot of the scoring automatically, taking some of the complex mental arithmetic out of the game. This is especially good for children. The above is the official board heights and accepted throwing distance, however, some leagues may vary so please check your local league setup and rules. As stated the measurement conversion are rounded from the imperial to metric. As you can see in the diagram, regulation dartboard height has the bull's eye at 5' 8" from the floor for both soft tip and steel tip darts. Regulation distance from the dartboard face is 7' 9-1/4" for steel tip darts and 8' for soft tip darts. However, the central ring positioned in the mid-point of the Bristle dartboard has been moved to the outer edges, and the outer bull has been removed completely, leaving a single red point bullseye in the centre. It has a red, blue and tan colour scheme. They also set the dartboard height and distance for darts throwing line. The NDA is responsible for a lot of the rules and regulations we have in darts today. Those same rules they came up with in 1925 are namely the same rules that are in use today. They are the ones responsible for selecting the London clock dartboard as the standard among other things.