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Unformatted text preview: ed in elementary
school. There are two types of drafting scales used in
design and construction: 1. Engineer, or civil, scales, such as 1˝ = 10´ or 1˝ = 50´,
are used for measuring roads, water mains, and
topographical features. The distance relationships
also may be shown as 1:10 or 1:50.
2. Architect scales, such as 1/4˝ = 1´-0˝ (1/48 size) or
1/8˝ = 1
´-0˝ (1/96 size), are used for structures and
buildings. They are used to measure interior and
exterior dimensions such as rooms, walls, doors,
windows, and fire protection system details. • The scale marked “16” is a standard ruler. • You must learn to read both from left to right,
and right to left. Note in the example below, the
numbers on the 1/8-inch scale increase from
left to right. The numbers on the 1/4-inch scale
increase from right to left. • Note that the “0” point on an architect scale
is not at the extreme end of the measuring
line. The numbers “below” the “0” represent
fractions of one foot. Other scale tools include flat scales and rolling scales.
Rolling scales have the advantage of being able to
measure travel di...
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This document was uploaded on 02/26/2014 for the course ES 302 at Western Oregon University.
- Spring '13