Scratch Building
Modern manufacturing techniques mean mass produced models achieve a high degree of precision and realism. In the past this was not the case and scratch building was very common. Simple models are made using cardboard engineering techniques. More sophisticated models can be made using a combination of etched sheets of brass and low temperature castings. Parts that need machining, such as wheels and couplings are purchased. Etched kits are still popular, still accompanied by low temperature castings. These kits produce models that are not covered by the major manufacturers or in scales that are not in mass production. Laser machining techniques have extended this ability to thicker materials for scale steam and other locomotive types. Scratch builders may also make silicone rubber molds of the parts they create, and cast them in various plastic resins (see Resin casting), or plasters. This may be done to save duplication of effort, or to sell to others. Resin "craftsman kits" are also available for a wide range of prototypes.
Read more about this topic: Rail Transport Modelling
Famous quotes containing the words scratch and/or building:
“Many divorces are not really the result of irreparable injury but involve, instead, a desire on the part of the man or woman to shatter the setup, start out from scratch alone, and make life work for them all over again. They want the risk of disaster, want to touch bottom, see where bottom is, and, coming up, to breathe the air with relief and relish again.”
—Edward Hoagland (b. 1932)
“The artist must be an egotist because, like the spider, he draws all his building material from his own breast. But just the same the artist alone among men knows what true humility means. His reach forever exceeds his grasp. He can never be satisfied with his work. He knows when he has done well, but he knows he has never attained his dream. He knows he never can.”
—Rheta Childe Dorr (1866–1948)