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engineer-mechanical:inventor-dimensions [2019/10/15 14:33]
jjensen [Surface Finish]
engineer-mechanical:inventor-dimensions [2019/10/15 14:35] (current)
jjensen [Surface Finish]
Line 147: Line 147:
     * Surface symbols are normally located so that they touch the object line for the surface that requires the finish. If this is not practical, the symbol is placed on an extension line. And if this is not practical, the symbol is used with a leader line, as illustrated in Figure 8-8 (p. 236). Both the symbol and the inscriptions are oriented for reading from the title block corner. [Hammers p. 236]     * Surface symbols are normally located so that they touch the object line for the surface that requires the finish. If this is not practical, the symbol is placed on an extension line. And if this is not practical, the symbol is used with a leader line, as illustrated in Figure 8-8 (p. 236). Both the symbol and the inscriptions are oriented for reading from the title block corner. [Hammers p. 236]
   * What does "​="​ mean   * What does "​="​ mean
 +    * It is a lay direction symbol. Lay parallel to the plane of projection of the view in which the symbol is used.
   * No Symbol   * No Symbol
     * Not all machine parts require special surface textures. Many parts are used as normally manufactured. If texture symbols are not shown, surfaces produced by normal manufacturing methods are acceptable.     * Not all machine parts require special surface textures. Many parts are used as normally manufactured. If texture symbols are not shown, surfaces produced by normal manufacturing methods are acceptable.
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