Engineering Graphics

 

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How to draw ellipse by rectangle method

How to draw Ellipse by concentric circle method

How to draw ellipse-Method 1  

Redraw and dimension as per BIS

Problem 1

Pentagon

1. Draw pentagon with a side length given

Ellipse

1. By eccentricity method

2. By concentric circle method

3. By rectangle method

4. To draw tangent and normal to ellipse

Parabola

1. By tangent method

2. By eccentricity method

Helix

Involute of a circle

Section Views

Problem 1

Problem 2

Problem 3