1. BASIC RULES OF MAKING DRAWING......51.1. Introduction......51.2. Drawing equipment and tools......61.3. Lettering......121.4. Lines on drawing......141.5. Scales......16Questions......172. SECTIONS AND OTHER CONVENTIONS......182.1. Introduction......182.2. Hatching of the section areas......182.3. Section view......202.4. Sections......242.5. Views of the object......262.6. Making an inclined section view or section......282.7. Removed Elements on a Larger Scale......302.8. Additional requirements......31Questions......333. CONVENTIONAL REPRESENTATION OF THE OBJECT’S ELEMENTS......353.1. Introduction......353.2. Threaded elements......353.3. Representation of Springs on Technical Drawings......383.4. Conventional representation of gears on technical drawings......403.5. Conventional representation of splined connection on technical drawings......43Questions......454. DIMENSIONING ON TECHNICAL DRAWING......464.1. Introduction......464.2. General principles......464.3. Methods of dimensioning......494.4. Indication dimension values on drawing......534.5. Radius
diameter and square dimensioning......564.6. Special indication......594.7. Indication of levels......63Questions......635. INDICATION OF TOLERANCES ON TECHNICAL DRAWING......655.1. Introduction......655.2. Indication of the tolerance and fit......66Questions......706. INDICATION OF SURFACE ROUGHNESS ON TECHNICAL DRAWING......716.1. Introduction......716.2. Indication of surface roughness......71Questions......757. INDICATION OF GEOMETRICAL TOLERANCE ON TECHNICAL DRAWING......767.1. Introduction......767.2. Indication of the geometrical tolerances......777.3. Indication of datum on technical drawing......79Questions......818. REPRESENTATION OF WELDS ON TECHNICAL DRAWING......828.1. Introduction......828.2. Indication of the welds......83Questions......889. AXONOMETRIC PROJECTIONS......899.1. Introduction......899.2. Isometric projection......899.3. Diametric projection......909.4. Oblique frontal diametric projection......919.5. Hatching of the axonometric projections......92Questions......9310. BLENDING OF LINES AND CURVES......94GLOSSARY......100LIST OF REFERENCE LINKS......102