isometric projections of prism , pyramid, cone, cylinder, difference between isometric projections and isometric drawing

1. Isometric Projections

2. Isometric Projections
Isometric projection is a method for visually representing
three-dimensional objects in two dimensions in technical and
engineering drawings. It is a pictorial projection of an object
and is a single view , in which all three dimensions of the object
are revealed.

3. Isometric Projection

4. Q1.Draw the isometric view of a square prism,
with side of base 40 and length of axis 70. When
its axis is (i) vertical (ii) horizontal

5. (i) axis vertical

6. (i) axis vertical

7. Q2.Draw the isometric view of a hexagonal prism,
with side of base 25 and axis 60 long. The prism is
resting on its base on H.P with an edge of the base
parallel to V.P .(Use Box Method)

9. Q3.Draw the isometric view of a pentagonal pyramid,
with side of base 25 and axis 60 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 Box Method)

11. Q4.Draw the isometric drawing of a cylinder, of
base diameter 40 and axis 70 long with axis
i)vertical and ii) horizontal .(Use Box Method)

13. Q4.Draw the isometric drawing of a cone, of
base diameter 40 and axis 70 long with axis
i)vertical and ii) horizontal .(Use Box Method)

15. The biggest visual difference between isometric drawings
and isometric projections is the size of the two images.
The isometric drawing is drawn using 100% true length
measurements on the height, width, and depth axes.
However, in isometric projections the height, width and
depth are displayed at 82% of their true length.
Isometric projection Vs Isometric
drawing

18. Isometric projection Vs Isometric
drawing
•Drawn to fore shortened dimension
•Reduced by 0.82 (1/1.224)
•Drawn to full given dimension
•Since all the dimensions fore-shortened by same
amount
Isometric projection:
Isometric drawing: