The theme is popular among adult fans, as well as children, and has spawned international associations and conventions. The motors were the same size, the push trains used a motor-shaped dummy block of bricks, and all used the same wheel style.
A push train could be updated to a battery-operated train, and a battery-operated train could be updated to an electric train. These motor units were sold separately as a replacement part until around 1990. Railcars began as spartan constructions of train-specific wheels and couplers attached to car bases made from universal plates and bricks, but these were quickly replaced by black single-piece bases in two lengths that included captive wheels and couplings. The builds were adapted to the minifigure , having appeared a few years earlier.The railcar bases were now again assembled from train-specific wheels and coupler and a greatly increased number of universal pieces. Battery-operated trains were still available. Tracks gained a new appearance with power being transmitted directly through metal strips on the two running rails. Previous 12-volt locomotives were not compatible with the new system without modification, due to the change in voltage and means of powering the motor, although it was possible to retrofit them with 9-volt motors. By the end of 2007, the 9-volt system had been discontinued. The announcement cited a lack of sufficient demand for the 9-volt product line to be profitable, caused partly by the need to replace key machinery and place minimum orders for motors and power regulators.
A nostalgic look at the wonderful Lego 12v Trains of the 1980’s. This 20ft x 8ft layout features every 12v train set Lego produced …
These parts were available separately, but mainly online. Looking at the rails and the drive by the train motors you’ll find many different systems which – more or less – are compatible to each other. From the middle of the track the radius is 40 studs . The parallel track is now 8 studs aside the main track. May 2011 also different wider curve radii are announced. Meanwhile also various different train wheels are offered. A bulky train base plate with integrated battery box and receiver was used for the train. This system is recognisable by the current-carrying tracks and the metal wheels which pick up the power for the train motor. The available geometries for tracks are limited. That made the track relative stable but setting up such a layout took some time. These batteries are carried on board in a special battery waggon. The rails were single blue rails and as sleepers standard 2×8 plates were used. This arrangement wasn’t very stable at all.