![]() ![]() In France, in engineering departments or architectural offices, here are some scales used :Įngineer's scale Boxed set of 1850s ivory engineer's scales presented to the railway civil engineer George Turnbull in India. In Britain, for flat rulers, the paired scales often found on architect's scales are: In Britain, and elsewhere, the standard units used on architectural drawings are the (SI) units millimetres (mm) and metres (m), whereas in France centimetres (cm) and metres are most often used. Therefore, a drawing will indicate both its scale (ratio) and the unit of measurement being used. Three-thirty-seconds-inch-to-the-foot ( 3⁄ 32″=1′0″) (1:128)Īrchitect's scale rulers used in Britain and other metric countries are marked with ratios without reference to a base unit. The following scales are generally grouped in pairs using the same dual-numbered index line (one scale is read from the right, and the other scale is read from the left): Typical scales used in the United States are: full scale, with inches, divided into sixteenths of an inch A 1:5 architectural scale (inches to feet) would be a 1:60 unitless scale (inches to inches) since there are 60 inches in 5 feet. It is not to be confused with a true unitless ratio. For example, one inch measured from a drawing with a scale of "one-inch-to-the-foot" is equivalent to one foot in the real world (a scale of 1:12).one inch measured from a drawing with a scale of "two-inches-to-the-foot" is equivalent to six inches in the real world (a scale of 1:6). In the United States, and prior to metrication in Britain, Canada and Australasia, architect's scales are marked as a ratio of x inches-to-the- foot (typically written as x″=1′-0″). Architect's scales may be flat, with 4 scales, or have a 3-lobed cross-section, with 6 or 12 scales. Scales were traditionally made of wood, but today they are usually made of rigid plastic or aluminum. įor accuracy and longevity, the material used should be dimensionally stable and durable. In common usage, both are referred to as a ruler.Īrchitect's scale A triangular architect's scale, made of brassĪn architect's scale is a specialized ruler designed to facilitate the drafting and measuring of architectural drawings, such as floor plans and Multi-view orthographic projections.īecause the scale of such drawings is often smaller than life-size, an architect's scale features multiple units of length and proportional length increments. A device for drawing straight lines is a straight edge or ruler. In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |