Episode of Series “Mechanical Drawing”.
This film presents the reasons why uniformity in dimensioning practices is essential, and explains that this uniformity depends on observance of certain standards in: 1. use of symbols; 2. choice of dimensions; 3. location of dimensions. The first step in learning this common language consists in extension lines, dimension lines, arrow heads, figures, notes, finish marks etc.
Pathescope Company of America
Black and White