Transcription of Basic Dimensioning and Tolerancing - Faculty Web Server ...
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Basic Dimensioning and Tolerancing Dr. Hodge Jenkins MAE 205 Important Elements of Dimensioning Dimension locations Dimensions and all text are ALWAYS horizontal Size and Location of Features Dimension features in the view best seen. Dimension Examples Slotted holes may be dimensioned In several ways Dimension Line Spacing Dimension Locations NO NO YES Dimension out part boundary YES Dimensions and all text are ALWAYS horizontal NO Grouping of Dimensions Grouped dimension Diameter Features Diameter Features Dimensioning Slots Dimensioning Consideration Tolerancing Threads and threaded fasteners
Engineering Dimensioned Drawing Maximum _007 Average .D04 Minimum .001 Tolerance _002 Clearame varies Tolerance -004 Figure 4.29 Toleranced Parts and the Important Terms .ggg MIN Clearance MAX Clearance Tolerance SHAFT CLEARANCE FIT Allowance = + .001 ALLOWANCE Tolerance 1.000 1.001 MAX Interference
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