Orthographic Projections - Diagrams

Isometric Projections

ISOMETRIC PROJECTIONS

1. A hexagonal prism , side of base 25 mm and height 50 mm rests on H.P. and one of the edges of its base is parallel to V.P .A section plane perpendicular to V.P. and inclined at 50⁰ to H.P bisects the axis of the prism . Draw the isometric projection of the truncated prism. Draw the isometric projection of the truncated prism.

2. A cone radius of base 25 mm and axis 50 mm long rests with one of its base edges on H.P. Its axis is parallel to V.P. Draw the isometric projection of the solid (i) showing the tip towards viewer (ii) when it rests with its base on H.P.

 3. Draw the isometric projection of a hexagonal prism of side of base 35mm and altitude 50mm surmounting a tetrahedron of side 45mm such that the axes of the solids are collinear and at least one of the edges of the two solids are parallel.

4. A square pyramid of side 30mm, axis length 50mm is centrally placed on top of a cube of side 50mm. Draw the isometric projections of solids.

5. A triangular prism of base edge 30mm and height 60mm stands on one of its corners on the ground with the axis inclined at 300 to the HP and 450 to the VP. The base of the object is nearer to VP compared to the top. Draw an isometric view of the object.

6. The frustum of a hexagonal pyramid side of top and bottom 25 mm and 40 mm respectively with axis 50 mm height rests on its base in H.P. Its axis is parallel to V.P. A sphere of diameter 40 mm is placed centrally on top of the prism. Draw the isometric projection of the solid.

7. A hexagonal prism, side of base 25 mm and axis 50 mm long rests on its base in H.P. Its axis is parallel to V.P. Draw the isometric projection of the solid. Show the isometric scale.

8. Draw the isometric view of a Door-Steps having three steps of 22cm tread and 15cm rise. The steps measure 75cm width-wise.

9. Draw the isometric view of a square prism, with side of base 40mm and length of axis 70mm, when its axis is (i) vertical and (ii) horizontal.

10. Draw the isometric view of a hexagonal prism, with side of base 25mm and axis 60mm long, the prism is resting on its base on H.P. with an edge of the base parallel to V.P. (Use the box method).

11. Draw the isometric view of a cylinder of base 50 mm diameter and 70mm height when it rests with its base on H.P. (use four-center method). Show the isometric scale.

12. Draw the isometric view of a pentagonal pyramid, with side of base 25mm and axis 60mm long. The pyramid is resting on its base on H.P, with an edge of the base (away from the observer) parallel to V.P. (Use off-set method).