Divide any circle into 12 equal parts using a compass and a ruler

2.6a-Simpler method to draw a regular Pentagon or a Hexagon. Also applicable to any regular polygon

2.7-Dividing A Circle Into 12 Equal Parts

1.2-Lettering in Engineering Drawing: English Letters and Numbers

1.4a-Placing of Dimension Systems in Engineering Drawing: Aligned and Unidirectional Systems

6.3a-Development of a sectioned Cone Surface

Draw an Ellipse by the Concentric Circle Method

4.7a-Drawing Isometric View of a Cylinder (Radius 25 mm; Height 60 mm)

7.1 - Ten Basic Steps to Free Hand Sketching for Engineering Drawing

2.5a-Divide A Line Into 7 Equal Parts

4.4-Isometric View of a Circle - Four Centre Method

1.3-Lines and Dimensioning in Engineering Drawing

2.9-Dividing a Circle into 24 Equal Parts