This post explains steps by step procedure for constructing an isometric drawing.
1. Draw the given solid with respect to V.P and H.P considering orthographic projection.
This figure is called as helping figure.
2. In helping figure, draw the centre lines
3. Enclose the figure with a rectangle
4. Mark the centre line co-ordinates on the rectangle
5. With respect to the horizontal line, draw the principal axes at 30° on both sides and at 90°.
6. Transfer the points centre line co-ordinates of helping figure to their respective principal axis.
7. Draw the third principal axis with respect to the value of height and length provided.
8. Transfer the co-ordinates of centre and vertices to the formed boxes
9. Join the visible edges and axis line
Note: Thick lines for visible lines and centre line for Axis line.
7. The resultant diagram is an isometric projection of the given solid.
11. Mark the dimensions
The isometric projections are drawn either as single solid or combination of two.
The common solids used in isometric projections are
• Prisms
• Pyramids
• Frustum of Pyramids
• Cylinder and Cone
• Sphere and Hemisphere
Video Link:
1. Draw the given solid with respect to V.P and H.P considering orthographic projection.
This figure is called as helping figure.
2. In helping figure, draw the centre lines
3. Enclose the figure with a rectangle
4. Mark the centre line co-ordinates on the rectangle
5. With respect to the horizontal line, draw the principal axes at 30° on both sides and at 90°.
6. Transfer the points centre line co-ordinates of helping figure to their respective principal axis.
7. Draw the third principal axis with respect to the value of height and length provided.
8. Transfer the co-ordinates of centre and vertices to the formed boxes
9. Join the visible edges and axis line
Note: Thick lines for visible lines and centre line for Axis line.
7. The resultant diagram is an isometric projection of the given solid.
11. Mark the dimensions
The isometric projections are drawn either as single solid or combination of two.
The common solids used in isometric projections are
• Prisms
• Pyramids
• Frustum of Pyramids
• Cylinder and Cone
• Sphere and Hemisphere
Video Link:
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