We consider two concentric circles with center $(0,0)$. One of them is an incircle $C_1$ with radius $r$ of an ellipse $E$ and the other is an excircle $C_2$ with radius $R$ of the ellipse $E$ .

Construct an ellipse having a MAJOR AXIS of 100mm and a MINOR AXIS of 60mm using the concentric circles method. Step 1: Draw two circles R50 and R30 on the center lines. Step 2: Divide the circles into a number of equal parts (normally into SDUWV XVLQJ WKH VHW VTXDUH R30 R50

CONSTRUCTION OF ELLIPSE BY CONCENTRIC CIRCLES METHOD . Data known : 1. Major axis . 2. Minor axis. Example 3: Construct an ellipse with major axis 100mm and minor axis 80mm by concentric circles method. Procedure: 1. Draw major axis AB of length 100mm and minor axis CD of length 80mm, perpendicular to AB and passing through its mid point O. 2.

The concentric circle method Procedure: i Draw two concentric circles of radii equal to the major and minor diameter of the ellipse respectively. (They are called concentric because both have the same centre). ii Divide the circles into twelve equal parts i.e the angle in each division should be 30°. iii A typical radius of the bigger circle ...

This video explains how we draw the Ellipse using the concentric circle method in engineering drawing. It gives an animated explanation of all the details fo...