DRAWING ISOMETRIC CIRCLES - COMPASS TECHNIQUE

This is an alternative way of drawing isometric circles. It requires a compass and the usual drawing equipment, such as a 30 degree set square. Some people find this technique quicker than the ‘ordinate method’.

1. Draw an isometric square. 2. Divide each side in half. 3. Draw from the top corner to each of the centre points. 4. Draw from the bottom corner to each of the centre points. 5. Number each ‘compass centre’ (1,2,3,4). 6. Draw ‘arcs’ using a compass with centres 1 and 2. 7. Draw ‘arcs’ using a compass with centres 3 and 4, completing the isometric circle. The same technique can be used to draw isometric circles in any 3D position. The marking out is shown below. HOW TO DRAW A CYLINDER USING THIS ISOMETRIC TECHNIQUE.

Start by drawing a vertical centre line, followed by two isometric circles. Then, join the two isometric circles with vertical lines (as shown by the arrows below in DIA. B). Remove lines, that are no longer needed and go over the outline of the cylinder, with a sharp pencil.   