The document provides 13 step-by-step instructions for drawing the isometric view of a cylinder resting on a square block. It first instructs the reader to draw the front and top views of the combination. It then explains how to plot points on the isometric axes and draw lines to form the box shape of the square block. Following this, it details how to enclose the circular base of the cylinder within a box and project points onto the isometric axes to form an elliptical shape. Finally, it demonstrates how to draw a second elliptical shape for the top of the cylinder and join the two ellipses to show the full isometric view of the cylinder on the block.

1. Department of Mechanical Engineering
Isometric View of
Combination of Solids
Cylinder placed over Square block
Drawing Steps By:
SUBIN B MARKOSE

2. Question
• Draw the isometric view of a cylinder of base
diameter 40 mm and height 50 mm resting
centrally over a square block of side 60 mm.

3. Step 1
• Draw the front and top view of the combination as
per the dimensions given.
• Mark the dimensions.
• Name the edges properly.

5. Step 2
• Draw the isometric axes and plot the point 'b'.
• Taking dimensions from top view, complete the box
a-b-c-d.

8. Step 3
• Now we have to take vertical height.
• Draw a vertical line = 60 mm from point 'c' as
shown.

10. Step 4
• Similarly draw vertical lines of same length from
corners a,b,d.
• Then join the end points of all the vertical lines.
• Top side of block is drawn now and name it e-f-g-
h.
• Now isometric view of square block is completed.

13. Step 5
• Now we have to start constructing the cylinder
over square block.
• For this, focus on top view of the cylinder, it is a
circle.
• Enclose the circle inside a box and name it 1-2-3-
4.
•This circle will be seen as an ellipse in
isometric view.

15. Step 6
• We have to draw the box 1-2-3-4 on the top side
of block.
•For this, focus on point '2' on top view.
•Draw a horizontal line through Point '2'
and mark point 'x'.
•Draw a vertical line through Point '2'
and mark point 'y'.

17. Step 7
• Plot points 'x' & 'y' on to isometric axes.
• Draw parallel lines thorough them as shown in the
images.
• Point of intersection of these two will be point '2'.
• Refer how point '2' is plotted.

20. Step 8
• Similarly take equal distances on other corners and
complete the box 1-2-3-4.
• Refer the image clearly.

22. Step 8
• Now we have to draw the ellipse, which is the
isometric view of the circle ( top view of cylinder ).
• Steps of drawing ellipse are not explained as it is
given in previous presentations.
• Steps are drawn in order so refer the images very
clearly and if doubt exists, please refer previous
presentations.

28. Step 9
• Base ellipse is complete now.
• Another ellipse has to be drawn which represents
the isometric view of top side of the cylinder.
• For this draw a vertical line=height of cylinder= 50
mm from point '3'.

30. Step 10
• Similarly draw vertical lines of same length from
other corners 1,2 & 4.
• Join the end points of the vertical lines. We got a
box in top side as shown.

33. Step 11
• To construct an ellipse on the top side of the box,
simply project the points on base ellipse and join
them.
• All the images are drawn lightly since these are
construction lines. Look carefully.

39. Step 12
• Now we got the top ellipse.
• Join top and bottom ellipse to get the isometric
view of the cylinder.

41. Step 13
•Highlight the figure as shown.
• This step is very important since now we will be
getting a clarity in the drawing.
• Always highlight only the part of solid asked in the
question. This will help you to score better.

44. Comments
• Certain edges are drawn very lightly. Please refer
images carefully.
• Please practice and learn.
• Drawing ellipse has already been explained in
previous presentations.
• Any doubt, feel free to rectify.

45. • End of presentation...