12bTextbook+Chapter+15+Dimensioning

# 12bTextbook+Chapter+15+Dimensioning - Chapter 15...

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Unformatted text preview: Chapter 15 Dimensioning Objectives Use the concept of dimensioning Explain the idea of tolerance in dimensioning Recall the fundamental rules and apply the techniques for dimensioning Select appropriate dimensions for a moderately complex part and correctly apply them to a drawing of that part Introduction Dimensioning is much like creating constraint-based solid models Define the size and location of the features within the software Part is created l virtually z to your size and location specifications Develop strategy for determining the types of dimensions required to define apart Is the Dimension I See on a Drawing Exact? Tolerance: amount of variation Tolerance dimensions on a detail drawing: FIGURE 15.07. The detail drawing of the SHAFT. What Are the Rules for Dimensioning ? National standard: ASME Y14.5M-1994 (ANSI Y14.5) Published by American Society of Mechanical Engineers Outlines uniform practices for displaying and interpreting dimensions Millimeters, Inches, or Angstroms? International System of Units (SI) Metric Millimeter is standard unit U.S. customary units Decimal inch is standard unit Both standards are used in United States Types of Dimensioning Different rules apply to metric- and inch- based drawings When using millimeters Show leading zeros for values less than one Do not show trailing zeros...
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## This note was uploaded on 05/21/2011 for the course CEE 1770 taught by Professor Staff during the Summer '08 term at Georgia Institute of Technology.

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12bTextbook+Chapter+15+Dimensioning - Chapter 15...

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