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Dimensions Ch16-19
Terms and Standards
| Term | Definition |
|---|---|
| ASME | standrard is most common in the USA. |
| JIS | text placement setting in the Text tab of the New Dimension Style dialog box to align text according to the Japanese standard |
| The American Institute of Architects | Y14.5-2009 dimensioning standard used in architectural drafting |
| Unidirectional Dimensioning | dimensional values are displayed horizontally and read from the bottom of the sheet |
| prefix | symbol placed in front of a dimension value |
| overall dimension | provide this and you can omit one of the smaller dimensions |
| Precision setting | depends on the accuracy required to manufacture specific features. |
| aligned dimension | Dimensions in which the text is placed at the same angle as the dimension line |
| location dimension | A dimension used to show the position of a feature on an object. |
| feature | A surface, hole, window, or other part of an object |
| associative dimension | A dimension that updates when the dimensioned object is changed. |
| dimension | A description of the size, shape, or location of features on an object. |
| general notes | Drawing notes that are placed in a corner of the drawing or next to the title block |
| dimension style | A saved configuration of dimension settings |
| alternate units | Another term for dual dimensioning units |
| N.C.S. | National Cad Standard |
| 25.4 millimeters | how many millimeters in 1 inch |
| DIMLINEAR | Horizontal and vertical dimensions are placed |
| Baseline Dimension | dimensioning to a common surface, centerline, or center plane, each dimension is independent of the others |
| Continue Dimension | placing a line of dimensions from one feature to the next, also known as chain dimensioning |
| Angular Dimension | one dimension and the value of the angle in degrees. |
| Direct Dimension | applied to control the specific size or location of a feature. |
| DIMJOGLINE | To create a break in a dimension for a long object that has a constant shape |
| vertex | The point at which the two sides of an angle meet |
| datum | A theoretically perfect surface, plane, point, or axis |
| DIMDIAMETER | command to dimension a circle |
| Ordinate Dimension | measure the horizontal or vertical distance from an origin point called the datum to a feature, such as a hole in a part. |
| Circles | Holes are dimensioned in the view in which they appear as |
| DIMARC | used to dimension the length of an arc. |
| Fillets | Dimensioned in a general drawing note |
| WIPEOUT | Creates a polygonal area that masks underlying objects with the current background color |
| DIMCENTER | allows you to add center marks or centerlines to circular objects without adding a diameter or radius dimension. |
| MLEADER | used to dimension chamfers |
| Radius | arcs should be dimensioned by this according to the ASME standard |
| countersink | A cone-shaped recess at one end of a hole that provides a mating surface for a screw head |
| spotface | A recessed surface for a washer machined into a smaller hole |
| counterbore | A larger-diameter hole at one end of a smaller hole that provides a place for a bolt head |
| DIMRADIUS | Arcs should be dimensioned by this |
| REVCLOUD | creates revision clouds |
| annotation | The general term for text, notes, and symbols on a drawing |
| horizontal shoulder | A properly drawn leader on a mechanical drawing should have one straight segment extending from the feature to a |
Created by:
lmsterner
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