This preview shows page 1. Sign up to view the full content.
Unformatted text preview: 0” 1.00”
Education Dimension This Properly Engineering
Education Principles of Good Dimensioning
Include sufficient dimensions (See pg 389 in1024 Text)
Dimension each feature only once
don’t over dimension
Dimension features in the most descriptive view
This is the Contour Rule
Don’t dimension to hidden lines if at all possible
Avoid dimensioning inside the object
Dimension holes in the circular view,
Dimension positive cylinders in the rectangular view
Dimension arcs <= 180o with radius symbol, R
Dimension arcs > 180o with diameter symbol, Ø
Extension lines should not touch object
Extension lines should not cross dimension lines
Dimension between views if possible
Tolerance: the total amount a dimension may vary
Limits: the extreme permissible numerical dimensions of a
part, the applica...
View Full Document
This note was uploaded on 01/28/2014 for the course ENGE 1114 taught by Professor Twknott during the Spring '06 term at Virginia Tech.
- Spring '06