How to Draw an Isometric Cylinder 

In this video you are going to learn how to draw an isometric cylinder.
This drawing requires knowledge of constructing an isometric circle.
If you haven't learned that yet, go and watch it here:
• How To Draw a Circle i...
First, you need to determine the diameter of the cylinder.
Use that to draw the isometric square for constructing the circle.
Then know the height of the cylinder then make a box using the measurement of the diameter and the height of the cylinder.
Once you have the box, it's just a matter of constructing the circles on the top and the bottom.
The bottom isometric circle doesn't need to be drawn completely since the back part is not visible.
When you have the isometric circle at the top and the curves at the bottom, simply connect them by drawing two vertical lines on the side to make it look like a cylinder.