Lego building sets entertain children of all ages. One of the things that makes Legos a classic is their versatility. People who want to build a train can choose from a specialized train kits, from pre-school to the Lego City battery operated train. Or you can create a train from your own supply of Legos. Follow these steps to build a Lego train from a general supply of Legos.
Take your first Lego with wheels to use as your engine car. If your wheeled Legos have places for attachments at either end, try to find one with only one extension.
Build up the sides of your engine car so that they are slightly higher than the middle. If you want a modern looking train, consider building it up at an angle so that the back of your train car is higher than the front.
Position small, flat Legos with markings on the blocks in the middle front part of the train. These are the controls for the train.
Place the Lego conductor behind the controls in the middle of the first car.
Attach your engine car to the next car. If both pieces have protruding attachments that link, you can attach these. If not, find a long, narrow Lego to attach to the back middle of the first car and the front middle of the next car.
Add Legos to the second car to achieve the look you want. Often the other train cars end up as a uniform rectangular shape.
Repeat Steps 5 and 6 to add other wheeled cars, building a train as long as you want.