1. Copyright - Planchard 2012 Fundamental ASME Y14.5 Dimensioning Rules Instructors Name Course Name

2. Copyright - Planchard 2012 Fundamental ASME Y14.5 Dimensioning Rules Each dimension has a tolerance except for a reference, maximum, or minimum, dimension. Dimensioning and tolerancing must be complete. Select and arrange dimensions to suit the function and mating relationship of a part.

3. Copyright - Planchard 2012 Fundamental ASME Y14.5 Dimensioning Rules Dimensions must not be subject to more than one interpretation Do not specify the manufacturing processes unless necessary Identify nonmandatory dimensions with an appropriate note Arrange dimensions to provide required information and optimum readability

4. Copyright - Planchard 2012 Fundamental ASME Y14.5 Dimensioning Rules Dimension diameter or thickness of materials manufactured to gage or code number. 90°angle is implied for centerlines and lines. A zero basic dimension applies where axes, center planes, or surfaces are shown one over the other with established geometric controls.

5. Copyright - Planchard 2012 Fundamental ASME Y14.5 Dimensioning Rules Unless otherwise specified, all: –Dimensions and tolerances are measured at 20°C (68°F). –Dimensions and tolerances apply in a free state condition except for non-rigid parts. –Tolerances apply for the full depth, length, and width of the feature. –Dimensions and tolerances apply on the drawing where specified.

6. Copyright - Planchard 2012 Fundamental ASME Y14.5 Dimensioning Rules Coordinate systems: –Right-handed (arranged clockwise). –Labeled axes and positive direction shown. 3-D model complies with ASME Y14.41, Digital Product Definition Data Practices.

7. Copyright - Planchard 2012 Dimensioning Scheme