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Scratch building is the process of building a scale model "from scratch", i.e. from raw materials, rather than building it from a commercial kit, kitbashing or buying it pre-assembled.
Scratch building is easiest if original plans of the subject exist; however, many models have been built from photographs by measuring a known object in the photograph and extrapolating the rest of the dimensions. The necessary parts are then fashioned out of a suitable material, such as wood, plastic, plaster, clay, metal, polymer clay, or even paper, and then assembled. Some purists consider a model not to be truly scratchbuilt unless all of the parts were made from raw materials. However most modellers would consider a model including commercial detail parts as scratchbuilt. Scratchbuilding a new body onto an altered ready-to-run chassis is also acceptable.
The reasons hobbyists scratchbuild may vary. Often a desired model is unavailable in kit form in the desired scale, or entirely non-existent. Sometimes the hobbyist may be dissatisfied with the accuracy or detail of kits that are available. Other times a hobbyist will opt to scratchbuild simply for the challenge. A hobbyist may also scratchbuild out of economy, as often the raw materials cost less than a packaged commercial kit.
Most hobbyists develop their skills by building kits, then progress to kitbashing, where various kits are combined to create a unique model before attempting to scratchbuild. Sometimes scratchbuilders utilize discarded parts of other models or toys, with or without modification, either in order to speed up the building process or to allow the process to continue in spite of certain parts being difficult to make. Some companies sell parts that are of little use to anyone but scratchbuilders.
Building stock, in whichever material, can be plain sheets, strips, bars, tubes, rods, or even structural shapes such as L or T girders. Stock can also be embossed or textured to replicate a certain prototype material (such as plastic sheet embossed with grooves to mimic a scale brick wall).
For example, to scratch-build a small board fence, the modeler could use plastic rod stock to form the vertical posts, then use plastic bar stock to form horizontal rails affixed to the posts, lay plastic strip stock vertically on the horizontal rails (perhaps 'distressed' with a wire brush to mimic wood grain, or by using thin strips of actual wood), trimming the top and bottoms of the strips to be even, adding details like nail holes (using a small pin), and then finishing and weathering (making a model look like it has been used via dust, dirt, stains, and wear).
There are as many ways of scratch-building models as there are modelers, but generally the modeler obtains plans of a prototype, or designs their own, transfers these plans to paper or other material as patterns (much easier since the arrival of household computer printers and copiers), and uses these patterns to cut, trim and affix the stock together to form the model. Finishing work (such as sanding and polishing, painting, weathering, distressing by forming dents and rust, dust, etc.) is done to complete the model and (hopefully) bring it to a lifelike state.
Railway modelling or model railroading is a hobby in which rail transport systems are modelled at a reduced scale.
Ship models or model ships are scale models of ships. They can range in size from 1/6000 scale wargaming miniatures to large vessels capable of holding people.
A model aircraft is a physical model of an existing or imagined aircraft, and is built typically for display, research, or amusement. Model aircraft are divided into two basic groups: flying and non-flying. Non-flying models are also termed static, display, or shelf models.
A scale model is a physical model that is geometrically similar to an object. Scale models are generally smaller than large prototypes such as vehicles, buildings, or people; but may be larger than small prototypes such as anatomical structures or subatomic particles. Models built to the same scale as the prototype are called mockups.
HO or H0 is a rail transport modelling scale using a 1:87 scale. It is the most popular scale of model railway in the world. The rails are spaced 16.5 millimetres (0.650 in) apart for modelling 1,435 mm standard gauge tracks and trains in HO.
A toy train is a toy that represents a train. It is distinguished from a model train by an emphasis on low cost and durability, rather than scale modeling. A toy train can be as simple as a toy that can run on a track, or it might be operated by electricity, clockwork or live steam. It is typically constructed from wood, plastic or metal. Many of today's steam trains might be considered as real ones as well, providing they are not strictly scale or not enough detailed ones in favor of a robustness appropriate for children or an inexpensive production.
TT scale is a model railroading scale at 1:120 scale with a track gauge of 12 mm between the rails. It is placed between HO scale (1:87) and N scale (1:160). Its original purpose, as the name suggests, was to make a train set small enough to assemble and operate on a tabletop.
EM gauge is a variant of 4 mm to a foot (1:76) scale used in model railways.
OO9, often also denoted as 009 or 00-9 and commonly pronounced as Double-Oh Nine, is a model railway scale and gauge combination of 4 mm scale and 9 mm gauge tracks, which models a prototype track gauge of 2 ft 3 in. It is a common choice in the United Kingdom for the modelling of narrow-gauge railways whose prototype gauges lie approximately between 2 ft and 2 ft 6 in. The 9 mm track gauge is used by N gauge model railways, a common commercial scale, which means that a selection of wheels, track, and mechanisms is readily available.
A plastic model kit,, is a consumer-grade plastic scale model manufactured as a kit, primarily assembled by hobbyists, and intended primarily for display. A plastic model kit depicts various subjects, ranging from real life military and civilian vehicles to characters and machinery from original kit lines and pop fiction, especially from eastern pop culture. A kit varies in difficulty, ranging from a "snap-together" model that assembles straight from the box, to a kit that requires special tools, paints, and plastic cements.
Z scale is one of the smallest commercially available model railway scales (1:220), with a track gauge of 6.5 mm / 0.256 in. Introduced by Märklin in 1972, Z scale trains operate on 0–10 volts DC and offer the same operating characteristics as all other two-rail, direct-current, analog model railways. Locomotives can be fitted with digital decoders for independent control. Model trains, track, structures, and human/animal figures are readily available in European, North American, and Japanese styles from a variety of manufacturers.
Kitbashing or model bashing is the practice of making a new scale model by taking pieces out of kits. These pieces may be added to a custom project or to another kit. For professional modelmakers, kitbashing is used to create concept models for detailing movie special effects. Commercial model kits are a ready source of "detailing", providing any number of identical, mass-produced components that can be used to add fine detail to an existing model. Professionals often kitbash to build prototype parts which are then recreated with lightweight materials.
Model Railroader (MR) is an American magazine about the hobby of model railroading. Founded in 1934 by Al C. Kalmbach, it is published monthly by Firecrown Media of Chattanooga, Tennessee. Commonly found on newsstands and in libraries, it promotes itself as the oldest magazine of its type in the United States, although it is the long-standing competitor to Railroad Model Craftsman, which - originally named The Model Craftsman - predates MR by one year.
Railroad Model Craftsman is an American magazine specializing in the hobby of model railroading. The magazine is published monthly by White River Productions, which acquired the title from Carstens Publications in 2014. Its first issue in March 1933 was called The Model Craftsman because it covered other areas of scale modeling as well. Founded by Emanuele Stieri, it was second editor Charles A. Penn who helped grow the company and lead the publication towards the hobby of scale models. In April 1949 it changed its focus to model trains and changed its name to Railroad Model Craftsman to reflect this change in editorial content. While it can claim to be the oldest model railroading magazine in continuous publication in the United States, rival Model Railroader counters with the tagline "Model railroading exclusively since 1934." Over the years, several other titles have been folded into the publication, including Toy Trains, Electric Trains and Hobby Railroading, Miniature Rail Roading, Model & Railway News, and The O Gager.
Testor Corporation is an American manufacturer of tools and accessories for scale model kits. The business is based in Rockford, Illinois, and is part of RPM International. It was founded in 1929 and its products are made in the US and marketed to customers worldwide.
Military miniaturism is a niche within the broader hobby of modeling focusing on military subjects. It is itself a rather broad subject, dealing with any scale model of military theme. It has an ever growing range of sub-hobbies, including scale figure modeling, armour modeling, model ship building, military aviation modeling, and historical wargaming.
Model military vehicles are miniature versions of military vehicles. They range in size and complexity; from simplified small-scale models for wargaming, to large, super-detailed renditions of specific real-life vehicles.
High rail is a phrase used in model railroading in North America, mostly in O scale and S scale, to describe a "compromise" form of modelling that strives for realism while accepting the compromises in scale associated with toy train equipment. The phrase exists due to the observation that traditional Lionel and American Flyer toy train track sits much higher than finescale track.
On2 gauge is part of the hobby of rail transport modeling. The name is based on the common USA model railroad O scale of 1:48 and refers to the gauge between the rails and the fact that it is narrow gauge, thus 'On2'.
Gundam Plastic models, Gundam Plamo, or Gunpla are model kits depicting the mecha machinery and characters of the fictional Gundam multiverse by Bandai Spirits.