![]() ![]() If you have not worked with accurate measurement, spend some time studying it. If you can measure accurately in full scale, you may want to skip ahead. The first measurement exercise will be with full size. Rules of this kind are usually divided into 1 /16” or 1 /32” units. Full Scaleįull scale is simply letting one inch on a ruler, steel rule, or draftsman’s scale equal one inch on the actual object. Since each occupational group has their own frequently used scales, some practice or basics review will help you to work with the scales used in your technology. There are numerous scales for different needs. For example, if the scales in the list display as relative fractions but you enter 1 cm 1.5 km, the application converts this to 1:150,000. After all, who wants to carry around a full size drawing of a locomotive? Obviously, with an object as small as a wristwatch, it would be necessary to draw to a larger scale.Ī machine part, for example, may be half the size (1/2”=1”) a building may be drawn 1/48 size (1/4”=1’-0”) a map may be drawn 1/200 size (1”=100’-0”) and a gear in that wristwatch may be ten-times size (10”=1”). This is done primarily for the convenience of the users of the drawings. In mo.st cases, if it is not drawn full size, the drawing is made smaller than the object. Scale MeasurementĪ drawing of an object may be the same size as the object (full size), or it may be larger or smaller than the object. If you need a dimension that is unclear or is not given, do not measure the print! Since prints shrink, stretch, and may not be drawn to scale, you can easily come up with some very inaccurate dimensions. Whether or not you need to review these fundamentals, there is one important thing to remember about getting measurements from a print. Measurement practice: on the scale above, locate the following fractions: Written fractions to be located on a scale. Others, who have had more experience, may find these exercises a worthwhile review. Since some students have had little need to measure accurately, these exercises will provide the practice they need. This section is intended as a review of the fundamental principles of measurement. The ability to make accurate measurements is a basic skill needed by everyone who reads and uses blueprints.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |