Modelling Hobby

In a general sense, the craft consisting prototyping, using various manuals, which have the function of acting as a "model" for industrial production. These models are typically used to obtain a mold. The figure of the craftsman modeler is disappearing, replaced by machines that can be provided a numerical model from a CAD system.

  

Modelling  Hobby

The models in a common sense, is also a building consisting hobby and eventually direct (dynamic modeling) miniature reproductions of machines, people or buildings. Originally from the practice of certain craftsmen of centuries past, especially furniture, to build small-scale examples of their products, and to show them to your customers without actually building them before receiving the order.

The modelling as a hobby can be divided into:

Dynamic:

• Scale models that move and direct remote control as aircraft and vehicles. Here fans seeking maneuver in the most skilful the model and achieve maximum control develop the device.

Static:

• Scale Models in great detail whose purpose is to observe them without moving. For amateur or professional plastic modelling each model represents a "museum piece" creating their own private collections that can have various themes: historical warmongering, civil engineering, science fiction, etc.. Here fans seeking to represent the most realistic level possible of the original model. By the latter is incorrect to consider as toys static scale models

Rookery Modelling :

The main rookery modelling as a hobby and the most common models are:

• Model Railway: Trains with movement to realistically detailed scenarios
• Aeromodelling: Aircraft and other devices capable of flight by a remotely controlled motor
• Automodelling: Vehicles and other ground motion artifacts by a remotely controlled motor
• Marine Modelling: Boats and other navigation devices capable of remote controlled motorized water
• Amateur Rocketry: Rocket launch capable

Static or static models:

• Civil and military aviation propeller planes, jets, helicopters and other artifacts
• Military vehicles, tanks and various weapons
• Naval and civilian models as sail boats, aircraft carriers, destroyers, patrol, merchant ships and submarines
• Civil and racing cars

Electric Trains : Power and Control Systems

Traditional Control

Since the beginning of the electric trains, the train speed is controlled by varying the voltage present on the track, of which the motors of the same take their supply. There are two main systems: The Call of two lanes, DC, and three-lane, alternating current.

The two-lane system and feeds a DC locomotives and wagons for one lane and returns on the other. Lanes have therefore polarity. Varying this polarity is achieved reverse the direction of travel.

Three rail system uses alternating current fed by the traffic lanes on one side and has a third central rail, including for return. Since the alternating current has no constant polarity to reverse the direction of movement is sent to the locomotive an overvoltage of approximately 20 to 24 volts which activates a mechanical or electronic mechanism for investment.

The locomotives of two lanes and three lanes are not compatible. The cars can be, according to the following rules:

Wagons with three lanes making way making two work if the wheels are isolated and do not carry any power outlet for lights, etc..

The cars of two lanes in three ways always work, but if they are equipped with lighting, it will not work.

Electronic control

A mid-90s, began to popularize based control systems in electronics and now has gone to using microcontrollers. This system has been largely standardized by the NMRA (North American Model Railways Association, or American association model railroad). Standardized systems receive the generic name of DCC (Digital Command Control). The system requires that the locomotives are installed an electronic circuit capable of driving the motor or accessories (lights, smoke generators, etc.) According to the digital commands received by the satellite by electronic circuits. The circuit is called locomotive decoder, and the installing operation is often called "scanning".

DCC systems also exist in two-and three lanes. Unlike traditional systems, the type of current flowing through the pathway may be the same in both cases. Actually systems two and three traditional lanes each had its advantages in the way of moving the compositions of different modes on the same circuit. Digital systems take individual control by microcomputer, regardless of the power system.

Regarding traditional control system, DCC control has the following advantages:

• You can control independently several locomotives on the same track, very close to each other.
• Locomotives and wagons can keep your headlights and other accessories while in detention, and its intensity does not vary with speed.
• You can also control other accessories such as turnouts, hookers, etc..
• Allows other gaming possibilities as functional cranes and other electrical accessories powered by the same source as the railroad.

The drawbacks of the system to the traditional DCC are:

• Need to digitize all locomotives, something especially difficult to locomotives old or smaller scales.
• Increased complexity for understanding its operation and for operation.

Electric Train Hobby

The electric train is a miniature railway which serves as a toy for children and as a hobby for the elderly. Its origins date back to the late nineteenth century in line with the appearance of ingenious toys apply innovative technologies, which are designed a small train made of sheet iron and driven by an electric motor.

It must be remembered that the railway had become not only the basic media at the time, but in a vehicle that evoked passionate adventures and stories to adults and children.

SCALES: 

At the initial scale of the invention was called "1" and the second scale, smaller, "0", which represents 1/48 of the natural scale.

After the Second World War in Germany scarce iron, so that manufacturers of electric trains, which had emerged some time, they had at their disposal sufficient feedstock to resume production and increase it as the expected market demand. That's how we created a new scale, the size was exactly half of the scale "0", and was called "H0" (German Halb = half). This scale has remained until today as the most popular among all existing, allowing manufacture locomotives, wagons and accessories with all kinds of detail, without occupying much space train.

There are also smaller scales, but in those cases you lose detail in the elements making up the railroad. The advantage of the small scales is that fit in the same space more rails.

On the other hand, are made large scale railways again, like the beginning, with which fans get a very detailed reproduction of locomotives and wagons. Some of the brands that manufacture these scales trains have weather-proof models, allowing circuits and riding trains to circulate outdoor even when it rains.