Dimensions PDF

DIMENSIONING DIMENSIONING 14 Dimensioning – placing sizes and related information on a drawing Size dimension – gives the detail and overall sizes of the object Location dimension – merely locates part or parts and features of the object ALIGNED M...

DIMENSIONING DIMENSIONING 14 Dimensioning – placing sizes and related information on a drawing Size dimension – gives the detail and overall sizes of the object Location dimension – merely locates part or parts and features of the object ALIGNED METHOD 15 All dimensions are placed aligned with the dimension line and be read from either the bottom or right side of the paper ALIGNED METHOD 16 UNIDIRECTIONAL METHOD 17 all dimensions are read from the bottom of the page as illustrated. This is a new method. UNIDIRECTIONAL METHOD 18 KINDS OF DIMENSIONS 19 Over-all dimension – every object, regardless of its shape, has three over-all dimensions. An over-all dimension indicates the over-all width, height and depth of an object. OVER-ALL DIMENSIONS 20 KINDS OF DIMENSIONS 21 Detail dimensions – provide size or location information concerning any feature or details of an object other than its over- all dimension. DETAIL DIMENSION 22 RULES IN DIMENSIONING 23 1. Dimensions should be placed between the views. 2. Avoid repetition of dimensions. 3. Use outside dimension if the space is limited, and use an inside dimension if there is enough space. RULES IN DIMENSIONING 24 4. Continuous dimensions should be used whenever possible. 5. Staggered dimensioning should be used when the space for dimensioning is limited. 6. When dimensioning a circle, it should be from center to center. RULES IN DIMENSIONING 25 7. Dimensions are entered in millimeters without measures. 8. Extension lines must have a distance of about 10 mm from the object edge and an approximate 2 millimeters after the dimension lines. THANK YOU